Belonio General Knowledge Area 1 Flashcards
A hand operated tractor which is suitable for both primary and
secondary tillage used when field has been soaked for at least half
a day to soften the soil.
a. power tiller
b. puddling-type floating tiller
c. reaper
d. none of the above
puddling-type floating tiller
Optimum axle speed for puddling-type floating tiller.
a. 100 rpm
b. 250 rpm
c. 340 rpm
d. none of the above
250 rpm
It is the ratio of the drawbar power and the wheel axle power.
a. lugging efficiency
b. traction efficiency
c. mechanical efficiency
d. none of the above
traction efficiency
The sum of all resistance acting on the tractor
a. coefficient of traction
b. running resistance
c. rolling resistance
d. none of the above
running resistance
Running resistance of a tractor includes
a. rolling resistance
b. air and acceleration resistance
c. slope resistance
d. all of the above
rolling resistance
air and acceleration resistance
slope resistance
Weight transfer means
a. to move paddy from the field to the granary
b. to transfer torrens title from the landlord to the tenant
c. to shift implement’s weight to the tractor’s drive wheel in
order to improve traction
d. none of the above
to shift implement’s weight to the tractor’s drive wheel in
order to improve traction
A tractor pulls a 1.0 meter wide heavy duty offset disk harrow at
an operating speed of 6 kph. What is the theoretical field capacity
of the machine?
a. 0.6 ha/hr
b. 0.06 ha/hr
c. 6 ha/hr
d. none of the above
0.6 ha/hr
Automatic Draft Control in a modern farm tractor:
a. automatically controls the amount of air passing through the
radiator to regulate the operating temperature of the engine
b. positions the implement at a constant height or depth relative to
the tractor
c. is the hydraulic implement hitch system which automatically
raises or lowers a soil engaging implement to maintain its draft
at a pre-selected value
d. none of the above
is the hydraulic implement hitch system which automatically
raises or lowers a soil engaging implement to maintain its draft
at a pre-selected value
An international testing center for tractor.
a. International Rice Research Institute
b. NEBRASKA
c. International Farm Machinery Institute
d. none of the above
NEBRASKA
When a machine is driven directly from the shaft of a power
source, the power is transmitted using:
a. gear drive
b. sprocket and chain drive
c. direct drive
d. none of the above
direct drive
Belt size designation for agricultural V-belt is:
a. A, B, C, D, E
b. HA, HB, HC, HD, HE
c. AA-BB-CC-DD-EE
d. none of the above
HA, HB, HC, HD, HE
It is a gripping device between power source.
a. clutch
b. chain
c. springs
d. none of the above
clutch
Machine element that transmit torque and power.
a. pulley
b. bearing
c. shaft
d. none of the above
shaft
It is used to fasten shaft pulleys and hubs of gears together.
a. bolt
b. springs
c. keys
d. none of the above
keys
A universal joint is:
a. a connector which can be used on all brands of tractor
b. used to transmit power between two intersecting shafts usually
when the angle between them is variable
c. a prohibited drug used universally
d. none of the above
used to transmit power between two intersecting shafts usually
when the angle between them is variable
A diesel engine that operates at 2500 rpm will be used to drive an
irrigation pump which should turn at 1000 rpm. The pulley
diameter for the pump is 4 inches. What is the recommended
pulley for the engine?
a. 2 in.
b. 4 in.
c. 10 in.
d. none of the above
2 in.
An irrigation pump shall be driven by a single cylinder engine.
The set-up has the following data: Engine rpm=2200, Pump
rpm=1800, Diameter of Engine Pulley=25 cm, what should the
diameter of the second pulley be?
a. 35.05 cm.
b. 30.55 cm
c. 53.05 cm
d. none of the above
30.55 cm
The length of a flat-belt pulley drive with the following data is:
Diameter of first pulley=300 mm, diameter of second pulley=400
mm, center distance of the pulley shaft=10 meters.
a. 20.15 m
b. 21.05 m
c. 25.01 m
d. none of the above
21.05 m
A corn sheller cylinder will be driven by 10 hp diesel engine thru
a V-belt drive. The engine has a speed of 1800 rpm while the
required speed of the corn sheller is 650 rpm. The effective
diameter of the driver pulley is 12 inches. What should be the
diameter of the driven pulley?
a. 25 in.
b. 33 in.
c. 42 in.
d. none of the above
33 in.
In the given problem in item above, what is the required length of
V-belt if the center distance between pulleys is 60 in.
a. 169 in.
b. 192.5 in.
c. 210 in.
d. none of the above
192.5 in.
If the belt has a capacity rating of 4.5 hp per belt, how many belts
are recommended for the drive?
a. 1 belt
b. 2 belts
c. 4 belts
d. none of the above
2 belts
What is the recommended shaft diameter for the drive in item
a. 1⁄2 in.
b. 3⁄4 in.
c. 1 in.
d. none of the above
3⁄4 in.
A type of plow that is widely adapted in breaking different types
of soil for turning and covering crop residues.
a. rotary plow
b. moldboard plow
c. disk plow
d. all of the above
moldboard plow
The power required in pulling an implement.
a. wheel power
b. brake power
c. drawbar power
d. none of the above
drawbar power
A tillage equipment which displaces and shatters soil, used to
reduce soil strength and to bury or mix plant materials and
fertilizers in the tilled layer.
a. primary tillage equipment
b. secondary tillage equipment
c. seeding and planting equipment
d. none of the above
primary tillage equipment
A tillage implement consisting of two or four gangs of concave
disks.
a. disk plow
b. disk harrow
c. cultivator
d. none of the above
disk harrow
A tillage implement which shatters the soil without complete
burial or mixing of surface materials.
a. chisel plow
b. lister plow
c. disk plow
d. none of the above
chisel plow
Mechanical manipulation of soil for any purpose.
a. land grading
b. tillage
c. earth moving
d. none of the above
tillage
A procedure in which planting is made directly into an essentially
unprepared seedbed.
a. zero tillage
b. no-tillage planting
c. reduced tillage
d. none of the above
zero tillage
The pushing or rolling of soil by a steeply inclined blade.
a. bulldozing
b. chiselling
c. subsoiling
d. none of the above
bulldozing
A secondary tillage operation which pulverizes, smoothens, and
packs the soil during seedbed preparation and also controls weeds.
a. harrowing
b. listing
c. chiselling
d. none of the above
harrowing
A tillage and land forming operation using a tool which splits the
soil and turns two furrows laterally in opposite directions, thereby
providing a ridge-and-furrow soil configuration.
a. listing
b. harrowing
c. chiselling
d. none of the above
listing
Minimum soil manipulation necessary for crop production or for
meeting tillage requirements under existing soil condition.
a. no-tillage planting
b. much tillage
c. minimum tillage
d. none of the above
minimum tillage
A tool which cuts plants materials and soil ahead of another tool.
a. coulter
b. jointer
c. injector
d. two of the above
d. two of the above
The force to propel an implement in the direction of travel.
a. draft
b. drawbar horsepower
c. side draft
d. none of the above
draft
The angle, in a vertical plane perpendicular to the direction of
travel, between a centralized tool or reference axis and the soil
surface.
a. tilt angle
b. lift angle
c. side angle
d. none of the above
tilt angle
It is deep chiselling below 16 in. for the purpose of loosening soil
for root growth and/or water movement.
a. ridging
b. chiselling
c. subsoiling
d. none of the above
subsoiling
It is the part of the moldboard plow that receives the furrow slice
from the share and turns to break, crush, and pulverize the soil.
a. share
b. shin
c. moldboard
d. all of the above
moldboard
The part of the moldboard plow which is used to cut the soil.
a. share
b. shin
c. moldboard
d. all of the above
share
It is a part of the plow bottom which helps to counteract the side
pressure exerted by the furrow slice.
a. shin
b. landside
c. share
d. none of the above
landside
A type of implement which is directly attached to the tractor and
its power lift is dependent upon the tractor engine for its general
operation.
a. semi-integral
b. integral-mounted
c. training or pull
d. none of the above
integral-mounted
A type of implement type which is supported by two or three
wheels and is hitched to the drawbar of the tractor where it is
being pulled.
a. integral-mounted
b. trailing
c. semi-integral
d. none of the above
trailing
A type of plow which is equipped with plow bodies which turns
the furrow slice to one side only.
a. one-way plow
b. two-way plow
c. two of the above
d. none of the above
one-way plow
A type of plow which has two sets of bodies mounted
symmetrically on a share frame which can be rotated over 180
degrees along the longitudinal axis.
a. reversible plow
b. one-way plow
c. lister plow
d. none of the above
reversible plow
The draft of a plow is dependent on the:
a. size of the plow
b. plowing depth
c. type of soil
d. all of the above
size of the plow
plowing depth
type of soil
The factors that affect the draft of the plow:
a. soil condition
b. hitch to the tractor
c. topography
d. all of the above
soil condition
hitch to the tractor
topography
Percentage of work done in pulling an average plow.
a. 50 %
b. 18 %
c. 30%
d. none of the above
18 %
Percentage of work of plow used in cutting furrow slice.
a. 43%
b. 58%
c. 24%
d. none of the above
43%
Percentage of work of plow used in turning slice of soil.
a. 34%
b. 25%
c. 60%
d. none of the above
34%
A point in which all the horizontal and vertical forces in the plow
meets.
a. side draft
b. center of resistance
c. center of gravity
d. none of the above
center of resistance
Drawbar horsepower is a factor of:
a. force exerted by plow
b. speed of plow
c. all of the above
d. none of the above
force exerted by plow
speed of plow
What is the force required to pull a single moldboard plow on a
clay loam soil having a width and depth of cut of 30 cm and 15
cm, respectively. Soil draft is 8 psi.
a. 314 kg
b. 253 kg
c. 157 kg
d. none of the above
253 kg
If the plow above has an average speed of 5 km/hr, what is the
drawbar horsepower of the plow.
a. 4.6 hp
b. 3.4 hp
c. 5.1 hp
d. none of the above
4.6 hp
A type of plow designed to reduce friction by making a rolling
bottom instead of slides along the furrow.
a. moldboard
b. rotary plow
c. disk plow
d. none of the above
disk plow
A primary-tillage plow used for small rice farm.
a. moldboard
b. rotary
c. spiral
d. all of the above
moldboard
rotary
spiral
A primary- tillage plow for rice farming that is attached in
replacement to the cage wheel of a power tiller.
a. rotary
b. spiral
c. disk
d. all of the above
spiral
An angle of the disk plow in reference to the vertical plane.
a. tilt angle
b. disk angle
c. all of the above
d. none of the above
tilt angle
An angle of the disk plow in reference to the direction of travel of
the plow.
a. tilt angle
b. disk angle
c. all of the above
d. none of the above
disk angle
A plow that combines the primary and secondary tillage at the
same time. It is used to cut and to pulverize the soil.
a. disk plow
b. rotary plow
c. chisel plow
e. all of the above
rotary plow
The power requirement of a rotary tiller for primary tillage.
a. 50 kW/m
b. 30 kW/m
c. 70 kW/m
d. all of the above
30 kW/m
A plow primarily for loosening the soil.
a. lister plow
b. disk plow
c. chisel plow
d. all of the above
chisel plow
A plow that is used to break up plow sole.
a. chisel plow
b. lister plow
c. subsoiler
d. none of the above
subsoiler
A secondary-tillage implement which stirs the soil using multiple
number of disk blade arranged on a gang.
a. spike tooth harrow
b. disk harrow
c. two of the above
d. none of the above
disk harrow
A gang arrangement on a disk harrow consisting of two gangs of
disk placed end to end which throws the soil in opposite direction.
a. double-action
b. single-action
c. offset
d. none of the above
single-action
A gang arrangement often called as “tandem harrow”.
a. double-action
b. single-action
c. offset
d. none of the above
double-action
A gang arrangement in which the harrow is not centrally located
with respect to the tractor position.
a. double-action
b. single-action
c. offset
d. none of the above
offset
Factors that influence the depth of penetration of disk harrow.
a. angle of disk
b. angle of hitch
c. size of disk
d. all of the above
d. all of the above
A trailing harrow that is hitched too high to the drawbar of the
tractor will…
a. have too deep penetration
b. have too shallow penetration
c. have right penetration
d. none of the above
have too shallow penetration
The actual coverage rate by an implement based on the total field
time.
a. field efficiency
b. effective field capacity
c. theoretical field capacity
d. none of the above
effective field capacity
A moldboard plow has:
a. lower draft than disk plow
b. higher draft than disk plow
c. equal draft than disk plow
d. all of the above
higher draft than disk plow
By increasing the disk angle, the penetration of a disk plow,
a. will be improved
b. will be the same
c. will become poor
d. none of the above
will be improved
The disk angle that will give the minimum draft for a disk plow
for a given width of cut is:
a. 30-35 deg.
b. 40-45 deg.
c. 45-50 deg.
d. none of the above
40-45 deg
Seeding directly into previously undisturbed soil.
a. much tillage
b. no-till
c. minimum tillage
d. none of the above
no-till
A tillage operation traditionally performed in preparing a seedbed
for a given crop grown in a given geographical area.
a. conventional tillage
b. conservation tillage
c. strip tillage
d. none of the above
conventional tillage
A primary tillage operation which manipulates the soil to a greater
depth than 300 mm.
a. reservoir tillage
b. deep tillage
c. ridge tillage
d. none of the above
deep tillage
An implement with integral power unit designed to provide both
mobility and power for performing agricultural operation.
a. mounted implement
b. self-propelled machine
c. trailed-mounted implement
d. none of the above
self-propelled machine
A rotary tiller has 2 m operating width. If the tractor runs at a
speed of 2 km/hr, the theoretical field capacity of the machine is:
a. 4.0 ha/hr
b. 0.4 ha/hr
c. 0.04 ha/hr
d. none of the above
0.4 ha/hr
The field capacity of the rotary tiller was measured at 0.23 ha/hr.
If the operating width and speed of the machines are 1.5 m. and 2
kph, respectively, the field efficiency of the tiller is:
a. 64%
b. 77%
c. 85%
d. none of the above
77%
The effective field capacity of the rotary tiller tilling theoretically
at 0.4 ha/hr for an efficiency of 85% is:
a. 0.34 ha/hr
b. 0.24 ha/hr
c. 0.43 ha/hr
d. none of the above
0.34 ha/hr
The effective field capacity of 2 moldboard plows having 25 cm
width each plowing at a speed of 7 km/hr for a field efficiency of
80% is:
a. 0.20 ha/hr
b. 0.28 ha/hr
c. 0.32 ha/hr
d. none of the above
0.28 ha/hr
A single-bottom moldboard plows on a clay loam soil (8 psi draft)
having an effective width of cut of 0.3 m. and a depth of cut of 15
cm. What is the force exerted by a plow?
a. 230 kg
b. 253 kg
c. 310 kg
d. none of the above
253 kg
What is the drawbar horsepower of the plow in item above if the
plowing speed is 5 kph?
a. 4.6 hp
b. 3.4 hp
c. 7.4 hp
d. none of the above
4.6 hp
A 3-bottom plow is plowing at a speed of 8 kph. The effective
width per plow bottom is 25 cm. If the plowing efficiency is
80%, what is the theoretical field efficiency?
a. 0.4 ha/hr
b. 0.6 ha/hr
c. 0.7 ha/hr
d. none of the above
0.6 ha/hr
The effective field capacity of the plow in item above is:
a. 0.48 ha/hr
b. 0.53 ha/hr
c. 0.72 ha/hr
d. none of the above
0.48 ha/hr
What is the required drawbar pull for a 5-meter tractor drawn
spike tooth harrow with a specific draft of 89 kg/m?
a. 345 kg
b. 445 kg
c. 500 kg
d. none of the above
445 kg
What is the drawbar-horsepower of the implement in item above
if it is running at a speed of 6 kph.
a. 8 hp
b. 10 hp
c. 23 hp
d. none of the above
10 hp
Headland is:
a. the strip of the land at the ends of the field used for turning by
field machinery
b. a piece of land owned and tilled by the head of family
c. land at the top of the hill
d. none of the above
the strip of the land at the ends of the field used for turning by
field machinery
In a 200-hectare corn project, the field has to be tilled in 30 days.
What size of heavy-duty offset-disk harrow should be selected if
the tractor to be used operates at 5 kph. Assume a 75% field
efficiency and an 8-hour working day.
a. 1.5 m
b. 2.2 m
c. 2.0 m
d. none of the above
2.2 m
An equipment used to place seed in a furrow.
a. planter
b. seeder
c. broadcaster
d. all of the above
seeder
An equipment used to place plant parts to a prepared furrow.
a. planter
b. seeder
c. broadcaster
d. all of the above
planter
A machine that prepares the soil, meters the seed, and positions
the seed in one operation.
a. broadcaster
b. drill
c. field distributor
d. none of the above
drill
A machine, which is cylindrical in shape, designed for planting
pre-germinated rice seed in rows.
a. broadcaster
b. drum seeder
c. jab planter
d. none of the above
drum seeder
Determine the number of plants for a 2-hectare farm planted with
corn with a spacing of 25 cm x 45 cm.
a. 150,000 plants
b. 177,777 plants
c. 185, 877 plants
d. none of the above
177,777 plants
A scattering of seeds on the surface of prepared soil.
a. drill seeding
b. hill dropping
c. broadcasting
d. none of the above
broadcasting
It is a planting method wherein seeds are deposited, either singly
or in group, in a water soluble tape under controlled condition.
a. precision planting
b. seed-tape planting
c. hill dropping
d. none of the above
seed-tape planting
It is a machine that places rice seedlings at a proper spacing on a
well-prepared paddy soil.
a. rice seeder
b. rice transplanter
c. all of the above
d. none of the above
rice transplanter
When Agricultural Engineer calibrates a sprayer, he:
a. measures the diameter of a sprayer tank
b. cleans the nozzles.
c. measures and adjust its application rate
d. none of the above
measures and adjust its application rate
In the Philippines, rice is usually transplanted
a. for weed control reasons as the seedlings have a head start
over the weeds
b. to give employment to landless farm workers
c. to prevent rats and birds from eating the seeds.
d. none of the above
for weed control reasons as the seedlings have a head start
over the weeds
A mechanically-operated machine that removes weeds or grasses
from the crops.
a. seeder
b. weeder
c. cultivator
d. none of the above
weeder
It is the ratio between the number of weeds removed by the
weeder to the number of weeds present per unit area.
a. weeding index
b. weeding rate
c. weeding capacity
d. none of the above
weeding index
A machine that breaks the liquid droplets of effective size and
distributes them uniformly over the surface or space to be
protected, and regulates the amount of chemical solution to avoid
excessive application that might prove harmful or wasteful.
a. duster
b. sprayer
c. all of the above
d. none of the above
sprayer
Primary factor that affects the performance of the sprayer.
a. spray-particle size
b. spraying time
c. spray materials
d. none of the above
spray-particle size
It is a sprayer apparatus consisting of pressure source and controls
and specifically employing an over-the-crop boom with automizer
arranged to provide uniform coverage of the treated surfaces.
a. boom sprayer
b. knapsack sprayer
c. compressed-air sprayer
d. none of the above
boom sprayer
A field sprayer that is being carried at the back by means of a
shoulder straps.
a. compressed-air sprayer
b. knapsack sprayer
c. power sprayer
d. none of the above
knapsack sprayer
A mechanical or thermal device that produces a liquid dispersion
having a volume median diameter of less than 50 um.
a. knapsack sprayer
b. aerosol generator
c. compressed-air sprayer
e. none of the above
aerosol generator
An apparatus, which consists of a hopper, a metering unit, and a
distribution device, that uses either gravity, centrifugal force, or
pendulum action to spread granules to the surface of the entire
area to be treated.
a. broadcast spreader
b. granular applicator
c. power sprayer
d. none of the above
broadcast spreader
A machine that cuts rice stalks and places them on a windrow
where they are gathered and bound into sheaves and carried to a
thresher.
a. scythe
b. stripper harvester
c. reaper
d. combines
reaper
A machine that involves the combing the grain from the plant
while the plant remain anchored.
a. reaper
b. stripper harvester
c. combine harvester
d. all of the above
stripper harvester
A machine that detaches the grain from a panicle.
a. reaper
b. thresher
c. sheller
d. all of the above
thresher
A machine used in separating the kernels from the cob.
a. grader
b. sheller
c. thresher
d. none of the above
sheller
The part of a rice thresher which encloses the threshing cylinder
and allows the separation of the grains from the panicle.
a. threshing cylinder
b. oscillating screens
c. concave
d. none of the above
concave
A type of a mechanical thresher in which rice stalks are fed into
the threshing chamber while the stalks are either mechanically- or
manually-held during threshing operation.
a. hold-on thresher
b. throw-in thresher
c. axial-flow thresher
d. none of the above
hold-on thresher
A type of mechanical rice thresher which detaches and separates
the grains from the panicles by feeding the rice-in-stalks into the
machine.
a. axial-flow thresher
b. throw in thresher
c. hold-on thresher
d. none of the above
throw in thresher
A type of throw-in thresher wherein rice-in-stalks are fed in
between the cylinder and the concave and go directly out of the
threshing chamber.
a. axial-flow thresher
b. through-flow thresher
c. hold-on thresher
d. all of the above
through-flow thresher
A type of throw-in thresher which moves the materials being
threshed in a helical manner around the threshing cylinder.
a. axial-flow-thresher
b. through-flow thresher
c. hold-on thresher
d. all of the above
axial-flow-thresher
Factors affecting the power requirement of a rice thresher.
a. feeding rate
b. moisture content
c. length of straw
d. all of the above
all of the above
It is the ratio of the weight of clean threshed grain to the grain
input.
a. threshing efficiency
b. threshing recovery
c. threshing output
d. all of the above
threshing recovery
The ratio of knife velocity to forward velocity of rice reaper.
a. 1.35
b. 2.55
c. 0.55
d. none of the above
1.35
In a field demonstration of a rice reaper with 1.2-m cutter bar
performance showed that the average travel speed of the machine
is 3 kph. The average width of cutter bar actually utilized is 1.0 m.
Time lost in crossing the dike is 5 min/ha and 10 min/ha for
repair. Turning and other idle time is 10 % of the effective
operating time while removing field obstruction and clogging is
15 min/ha. What is the field capacity of the machine?
a. 0.36 ha/hr
b. 0.25 ha/hr
c. 0.18 ha/hr
d. none of the above
0.36 ha/hr
What is the effective field capacity of the machine in item above?
a. 0.25 ha/hr
b. 0.30 ha/hr
c. 0.35 ha/hr
d. none of the above
0.30 ha/hr
What is the time lost in turning and other idle time per hectare of
the reaper in item above?
a. 10 min
b. 17 min
c. 20 min
d. none of the above
20 min
It is the ratio between the mass of fuel consumed per unit of time
and the corresponding measured power.
a. specific fuel consumption
b. fuel to mass ratio
c. fuel consumption rate
d. none of the above
specific fuel consumption
A tillage or soil preparation in which plant residues are
specifically left on or near the surface.
a. strip tillage
b. mulch tillage
c. optimum tillage
d. none of the above
mulch tillage
A steel containing 0.035-0.4 % carbon and is widely used for
production of steel plate, structural steel, bars, etc.
a. mild steel
b. hard steel
c. soft-centered steel
d. all of the above
mild steel
The center to center distance between overlapping broadcast
applications.
a. effective width
b. swath
c. broadcasting width
d. all of the above
swath
The portion of a combine comprising the mechanism for gathering
crops.
a. crop gatherer
b. star wheel
c. header
d. all of the above
star wheel
The horizontal distance, perpendicular to the direction of travel,
an implement performs its intended function in one pass.
a. implement width
b. operating width
c. side draft
d. none of the above
implement width
A gas, a liquid, or a solid used to propel or transport chemical.
a. spray material
b. spray nozzle
c. carrier
d. all of the above
carrier
The portion of an implement designed to connect the implement
to the power source.
a. connector
b. clutch
c. hitch
d. all of the above
hitch
The draft of implement in terms of force per unit area of tilled
cross-section.
a. implement draft
b. specific draft
c. line draft
d. all of the above
specific draft
Factor of Safety engineering science refers to:
a. the excess amount of materials designed into a machine to
ensure that it does not break down
b. the ratio of the ultimate strength of a material or component to
the working stress it is expected to be subjected to
c. the safety of workers in the factory
d. none of the above
the ratio of the ultimate strength of a material or component to
the working stress it is expected to be subjected to
A name given by a manufacturer to its product to distinguish them
from the ones produced by other manufacturers.
a. trade mark
b. manufacturer’s name
c. brand name
d. none of the above
brand name
Raise ridge formed when plowing starts in the middle of strip.
a. back furrow
b. dead furrow
c. furrow wall
d. none of the above
back furrow
Open trench left during plowing when the strips are finished.
a. dead furrow
b. back furrow
c. furrow wall
d. none of the above
dead furrow
One-thousand gallons per minute (1000 gpm) of water is to be
pumped from a river to a farm 150-ft above the river. What is the
required horsepower to drive the pump considering a pumps
efficiency of 70 % and the friction and other losses of 20 % of the
static head.
a. 64.8 hp
b. 68.4 hp
c. 48.6 hp
d. none of the above
64.8 hp
What is the total head loss in meters of the pump system in item
above.
a. 54.8 m
b. 48.5 m
c. 84.5 m
d. none of the above
54.8 m
If a diesel engine will be used to drive the pump in item above,
what is the recommended horsepower for the engine? (80%
engine efficiency)
a. 80.9 hp
b. 85.5 hp
c. 60.8 hp
d. none of the above
80.9 hp
If a gasoline engine will be used to drive the pump in item above,
what is the power requirement? (70% engione efficiency)
a. 97.2 hp
b. 102.6 hp
c. 125.7 hp
d. none of the above
97.2 hp
A farmer wishes to spray his cotton plantation at a rate of 300
gallons per hectare. Sixteen nozzles, 18 inches apart will be used.
The froward speed of the tractor will be 5 kph. Compute the field
capacity of the sprayer in hectare per hour.
a. 5.6 ha/hr
b. 3.6 ha/hr
c. 4.7 ha/hr
d. none of the above
3.6 ha/hr
What is the required pump capacity for the sprayer above?
a. 23.5 gpm
b. 18.3 gpm
c. 20.6 gpm
d. none of the above
18.3 gpm
In trade circles, CIF stands for
a. Cash-In-Fist
b. Cost, Insurance, and Freight
c. Cost-In Freight
d. None of the above
Cost, Insurance, and Freight
A clutch that is used to drive a machine element in only one
direction is
a. slip clutch
b. overrunning clutch
c. friction clutch
d. none of the above
overrunning clutch
A clutch that limits the amount of torque or power that is
transmitted through the shaft to the driven member.
a. slip clutch
b. overrunning clutch
c. friction clutch
d. none of the above
slip clutch
The unbroken side of furrow is called
a. dead furrow
b. furrow wall
c. back furrow
d. none of the above
furrow wall
It is a distinguishing symbol affixed to products by a manufacturer
in order to identify them as his goods.
a. trade name
b. trade mark
c. brand name
d. all of the above
trade mark
A tractor operating at 3.5 mph develops a drawbar pull of 3000
pounds. Estimate the required drawbar horsepower for the tractor.
a. 28.0 hp
b. 20.9 hp
c. 19.8 hp
d. none of the above
28.0 hp
The specific fuel consumption of a tractor is 0.3 lbs per BHP-
hour. If the heating value of the fuel is 19500 BTU/lb, what is the
brake thermal efficiency?
a. 35.4 %
b. 54.3 %
c. 43.5 %
43.5 %
A corn plantation requires a population of 37,000 plants per
hectare. The average emergence is 90 % and the row spacing is to
be 1.2 meters. If the seed are to be drilled, what should be the seed
spacing?
a. 0.4 m
b. 0.3 m
c. 0.2 m
d. none of the above
0.2 m
What is the theoretical field capacity of a tandem disk harrow
pulled by 1.5 m wide tractor running at a speed of 10 kph?
a. 1.5 ha/hr
b. 2.5 ha /hr
c. 5.1 ha/hr
d. none of the above
d. none of the above
Operating width of the implement minus the overlap is
a. implement width
b. effective width
c. operating width
d. all of the above
effective width
A soil-handling implement which turn uniform ridges of soil to
predetermined shape.
a. furrower
b. bed shaper
c. middle breaker
d. none of the above
bed shaper
When middle breaking will be carried out on the field
a. a lister is needed to form a furrow between rows of plant
b. a ridge and furrow soil is made prior to planting
c. hard soil is broken at the middle to reduce its size
d. none of the above
a lister is needed to form a furrow between rows of plant
When a material is to be inserted into the soil, the tillage to be
used is
a. jointer
b. coulter
c. injector
d. all of the above
injector
When a disk plow is set on vertical position, the plow will
a. penetrate
b. will not penetrate
c. remain in the position
d. none of the above
penetrate
A tillage system which consist of fewer or less energy intensive
optimum compared with conventional tillage.
a. minimum tillage
b. no-till tillage
c. reduce tillage
d. all of the above
reduce tillage
When 30 % or less of the soil surface is tilled, the tillage operation
employed is
a. minimum tillage
b. strip tillage
c. ridge tillage
d. all of the above
strip tillage
A soil-tool reaction in which soil slides over the surface of the
tillage tool without significant adhesion.
a. sliding
b. scouring
c. soil cutting
d. none of the above
scouring
Agricultural tractors, self-propelled machines, implement
designed for field operation are examples of
a. farmstead equipment
b. agricultural field equipment
c. agricultural implement
d. none of the above
agricultural field equipment
A self-propelled implement
a. requires a tractor in order to do its function
b. requires a stationary engine in order to do its function
c. does not require a tractor to operate
d. none of the above
does not require a tractor to operate
A booklet provided by manufacturers in which the step-by-step
procedure for repair or disassembly of parts are given.
a. operator’s manual
b. technical manual
c. product catalog
d. all of the above
technical manual
A booklet form provided by manufacturers in which adjustment,
care and maintenance procedure, and safety of the machine are
indicated.
a. operator’s manual
b. technical manual
c. product catalog
d. none of the above
operator’s manual
If hitch of a plow is placed above the vertical line of pull,
a. there will be lifting action at front of the plow and its bottom
will tend to run shallow particularly to hard ground
b. the plow share will tend to worn out easily
c. the plow bottom will penetrate deeply
d. none of the above
there will be lifting action at front of the plow and its bottom
will tend to run shallow particularly to hard ground
It is the line of pull that is straight from the center-of-load through
the point where the drawbar of the draft is attached to the drawbar
of the tractor.
a. horizontal line draft
b. vertical line draft
c. side draft
d. none of the above
vertical line draft
It is the line of draft that is straight line from the center of
resistance or load to the point where plow drawbar is attached to
the tractor drawbar.
a. horizontal line draft
b. vertical line draft
c. side draft
d. none of the above
horizontal line draft
When the center-of-load of a plow is not on the same line of the
center of power
a. there will be a side draft.
b. tractor will be partly pulled sideways.
c. forces on the tractor will be carried by the rear of the tractor
wheel.
d. all of the above
all of the above
The rate of planting, or pounds of seeds planted per acre that gives
a desired quality of plants without thinning is
a. seeding rate
b. planting to stand
c. planting capacity
d. none of the above
planting to stand
A type of power sprayer where the spray pressure is built up by
the direct action of the pump on the liquid spray material
a. hydraulic sprayer
b. blower sprayer
c. hydro-pneumatic sprayer
d. all of the above
hydraulic sprayer
The size of a moldboard plow is determined
a. from the distance measured at the wing of the share to the land
side
b. from the width of the plow measured at the intersection of the
share an the moldboard
c. from the width of the moldboard
d. non of the above
from the distance measured at the wing of the share to the land
side
Tractor tire used to propel as well as to provide good floatation is,
a. implement tire
b. traction tire
c. steering tire
d. all of the above
steering tire
Bearings used for disk plow bottom are
a. tapered roller bearing
b. spherical roller bearing
c. ball bearing
d. none of the above
tapered roller bearing
A type of implement that is used to be attached to the three-point
hitch and hydraulic lift system of a tractor.
a. trailing implement
b. semi-mounted implement
c. mounted implement
d. all of the above
mounted implement
A compartment provided for the harrow to aid in penetration.
a. weight boxes
b. ballast
c. ballast compartment
d. all of the above
weight boxes
If a sprocket is used for a chain, a sheave is used for …
a. flat belt
b. gear
c. v-belt
d. all of the above
v-belt
Substance added to spray as stickers, stabilizers and conditioning
agent
a. water
b. petroleum gas
c. gelatin
d. all of the above
petroleum gas
Pump recommended for a sprayer that is used for abrasive spray
materials
a. centrifugal pump
b. diaphragm pump
c. gear pump
d. all of the above
diaphragm pump
Approximate pressure used in spraying weedicide.
a. 10-25 psi
b. 25-40 psi
c. 40-60 psi
d. none of the above
25-40 psi
To reduce the size of spray particle,
a. increase the operating pressure of the sprayer.
b. adjust the control valve opening of the sprayer.
c. adjust the opening of the spray nozzle.
d. none of the above
adjust the opening of the spray nozzle.
A machine used to kill weed seeds by microwave heating during
weeding operation
a. zapper
b. microwave oven
c. flame thrower
d. all of the above
zapper
A device used to hold spray nozzle close to the soil so those
chemicals can be sprayed on young grass in the plant row.
a. spray shield
b. spray boom
c. spray holder
d. none of the above
spray shield
It is used between the cultivator sweep and the plant row to
prevent soil from covering small young plants.
a. shield
b. fender
c. spread bar
d. none of the above
fender
When soil is thrown to the plant during cultivation, the operation
is
a. hilling-up
b. barring-off
c. listing
d. all of the above
hilling-up
When soils are thrown away from the plants during cultivation,
the operation is
a. hilling-up
b. barring-off
c. sweeping
d. none of the above
barring-off
It is the true point of hitch or center-of-pull of an implement.
a. center of power
b. center of resistance
c. center of load
d. all of the above
center of power
The effective drawbar pull of the tractor is reduced for every
percent of grade by
a. 0.1 %
b. 1 %
c. 10 %
d. none of the above
1 %
An instrument used to measure the draft of a plow
a. dynamometer
b. spring scale
c. pressure gauge
d. all of the above
dynamometer
The maximum friction in the moldboard plow is
a. at the point of share
b. between the share and the moldboard
c. at the moldboard
d. none of the above
at the point of share
A secondary tillage implement consisting of one or two in-line
gang rollers used for crushing soil clods and compacting the soil.
a. roller tiller
b. packer
c. roller harrow
d. none of the above
packer
A primary or secondary tillage implement used for broadcast or
for strip tillage and also used as chemical incorporators prior to
planting.
a. roller tiller
b. roller harrow
c. packer
d. none of the above
roller tiller
It is a plow consisting of a strongly constructed frame and a
vertical leg drawn to a subsoil and the bullet-shape attachment
creates a tube like cavity acting as a drainage channel.
a. subsoiler
b. bullet plow
c. mole plow
d. all of the above
mole plow
In designing a rice thresher, the most important factors affecting
threshing efficiency is
a. rpm of the cylinder
b. peripheral speed of the cylinder
c. diameter of the cylinder
d. none of the above
peripheral speed of the cylinder
A kind of chemical used for spraying which form a finely-divided
solid particles when mixed with water.
a. emulsion
b. suspension
c. solution
d. all of the above
suspension
An insecticide that kills insects when insects suck on plant tissues
a. contact
b. stomach
c. systemic
d. all of the above
systemic
A hitch system for a tractor suitable for large, heavy implement
for trailer
a. three-point hitch system
b. drawbar hitch system
c. semi-mounted hitch system
d. all of the above
drawbar hitch system
A tractor drive wheel under load rotates at 1200 revolution in
passing a newly cultivated field. At no load, the tractor drive
wheel is able to rotate at 1125 revolution. What is the percent
slippage of the tractor drive wheel?
a. 5.6 %
b. 6.2
c. 8.1 %
d. none of the above
6.2
Growing of more than one crop on the same land in one year
a. mixed crop
b. multiple cropping
c. inter-cropping
d. none of the above
multiple cropping
Growing of two or more crops simultaneously and intermingled
with no row arrangement.
a. mixed cropping
b. inter cropping
c. multiple cropping
d. none of the above
mixed cropping
Growing of two or more crops in alternate rows.
a. inter-planting
b. inter-cropping
c. inter-culture
d. all of the above
inter-cropping
It is a practice of planting short term annual crop with long-term
annual or biennial crops.
a. inter-planting
b. inter-cropping
c. inter-culture
d. all of the above
inter-planting
It is the cultivation of one crop underneath a perennial crop.
a. inter-planting
b. inter-cropping
c. inter-culture
d. all of the above
inter-culture
Application of chemical to a small restricted area, usually to
control the spread of pest.
a. spot treatment
b. space application
c. direct application
d. all of the above
spot treatment
Dispersion of liquid or dry particles in air in such a manner that
target pest are exposed to chemical.
a. spot treatment
b. space treatment
c. direct application
d. all of the above
space treatment
Application of chemical to the stem, fruit, leaves, needles, or
blades of a plant.
a. direct application
b. foliar application
c. space application
d. all of the above
foliar application
Application of chemical to a specific area such as row, bed, or at
base of the plant
a. direct application
b. spot treatment
c. space application
d. none of the above
direct application
Application of chemical over entire area to be treated.
a. basal application
b. band application
c. broadcast application
d. none of the above
broadcast application
Application of chemical to the base of a tree around the trunk or
by injection into slasher or cuts.
a. basal application
b. broadcast application
c. band application
d. none of the above
basal application
Application of chemical in parallel strips leaving the area between
strips free of chemicals.
a. basal application
b. broadcast application
c. band application
d. none of the above
band application
Soil blocks or masses that are cut, sheared or broken loose by
tillage tool.
a. furrow slice
b. clod
c. loose soil
d. none of the above
clod
It is a change in the value of a machine.
a. cost reduction
b. depreciation
c. lost of value
d. none of the above
depreciation
Actual rate performance of machine on land or crop processed in a
given time based upon total field time.
a. theoretical field capacity
b. effective field capacity
c. field efficiency
d. all of the above
effective field capacity
The rate of performance obtained if a machine performs its
function 100 % of the time of a given operating speed using 100
% of its theoretical width.
a. theoretical field capacity
b. effective field capacity
c. field capacity
d. none of the above
theoretical field capacity
The amount paid for hiring equipment and operating services to
perform a certain task.
a. custom cost
b. operating cost
c. variable cost
d. none of the above
custom cost
The ratio of engine power used in performing an operation to
engine power available.
a. field load tractor
b. engine efficiency
c. engine performance ratio
d. all of the above
field load tractor
A sprayer designed to charge the spray droplet so that there is a
powerful attraction between the plants and the charged droplet.
a. electromagnetic sprayer
b. electrolytic sprayer
c. electrostatic sprayer
d. all of the above
electrostatic sprayer
It is used to protect tractor operator from dust, noise, rain and
heat.
a. operator’s shield
b. chassis
c. cab
d. none of the above
cab
A device that transfer seed from the seedbox to the coulter tube at
a fixed rate
a. seed feeder
b. seed distributor
c. seed metering device
d. all of the above
seed metering device
A device at the header of a combine for severing the plant stalk.
a. cutting mechanism
b. star wheel
c. pickup
d. none of the above
cutting mechanism
A device for gathering crops on a windrow of a combine.
a. header
b. pickup
c. star wheel
d. none of the above
pickup
A transport machine used in agriculture suitably designed for
coupling to an agricultural tractor or self-propelled combine.
a. agricultural wagon
b. agricultural loader
c. agricultural trailer
d. none of the above
agricultural trailer
A harvest residue discharged from cleaning devices of a combine.
a. foreign matters
b. cut straw
c. chaffs
d. none of the above
chaffs
What is the application rate of a granular broadcast spreader
required to apply 1 ton of manure at a distance of 1000 meters.
The machine swath is 2 meters.
a. 500 kg/ha
b. 5000 kg/ha
c. 50,000 kg/ha
d. none of the above
5000 kg/ha
An external shaft on an agricultural tractor other than the PTO
which provides rotational power to implements that are usually
front and side mounted.
a. belt drive shaft
b. secondary PTO
c. auxiliary PTO
d. none of the above
auxiliary PTO
A rotating device located inside the hopper of gravity flow
applicator and broadcast spreaders to enhance delivery of granules
to the adjustable orifice of the machine.
a. mixer
b. stirrer
c. agitator
d. none of the above
agitator
In ASAE, safety code for laboratory equipment and typical
application, the safety yellow color stands for
a. danger stop
b. warning
c. caution
d. none of the above
caution
A safety gray color at the ASAE safety code is used for
a. floor or work area around machines and equipment
b. traffic and housekeeping areas
c. areas with radiation hazard
d. all of the above
floor or work area around machines and equipment
When pipeline is painted with green and white color, the safety
code means that the pipe contains
a. liquid of inherently low hazard
b. fir extinguishing materials
c. flammable or explosive materials
d. all of the above
liquid of inherently low hazard
The standard length of stroke of hydraulic remote control
cylinders for trailing-type agricultural implement is
a. 6 to 12 inches
b. 8 to 16 inches
c. 10 to 20 inches
d. none of the above
8 to 16 inches
Assume that you are the Agricultural Engineer of a 500-hectare
corn farm with soil type that gives 10 psi draft when plowing at a
speed of 4 km/hr. Compute the drawbar horsepower required to
pull a three-disk plow with effective cut of 12 inches per disk at a
plowing depth of 6 inches.
a. 14.3 hp
b. 23.4 hp
c. 34.5 hp
d. none of the above
14.3 hp
How many hectares in item above does a tractor pulling a three
disk plow would be able to plow in one day (16 hours operation)
assuming a total time loss of 30%?
a. 2 ha/day
b. 4 ha/day
c. 6 ha/day
d. none of the above
4 ha/day
How many days in item above are required to plow the 500-
hectare farm using ten units of the same kind of tractor and plow?
a. 8.3 days
b. 12.5 days
c. 15.4 days
d. none of the above
12.5 days
What is the amount of fuel consumed in liters per 16 hours day in
item above, of one tractor unit if the specific fuel consumption is 1
lb/dhp-hr and the specific gravity of the fuel is 0.8?
a. 69.7 liters
b. 130.0 liters
c. 95.1 liters
d. none of the above
130.0 liters
The perpendicular distance between the upper hitch point and the
common axis of the lower hitch point of a tractor.
a. mast height
b. hitch vertical height
c. stud height
d. none of the above
mast height
The distance between lower hitch point measured at the base of
the lower hitch stud, or the distance between the inner most
restraining means provided on the implement.
a. lower hitch-point spread
b. lower hitch point distance
c. lower hitch point clearance
d. none of the above
lower hitch-point spread
ASAE classification for slow moving vehicle such as animal-
drawn or motorize conveyance, including implements in tow
should not exceed a travel speed of
a. 30 kph
b. 40 kph
c. 50 kph
d. none of the above
40 kph
For safety purposes, slow-moving vehicle such as agricultural
machines must be provided with
a. rear bumper to protect the machine from impact
b. identification emblem to guide motorist that the machine is
slow-moving
c. signal light when travelling
d. none of the above
identification emblem to guide motorist that the machine is
slow-moving
What is the cutting width of the single disk harrow set at 18
degree working angle containing 20 disks spaced at 30 cm? Disk
diameter is 40 cm.
a. 553.5 cm
b. 453.7 cm
c. 540.6 cm
d. none of the above
If the harrow in item above is a tandem disk harrow, what is the
cutting width of the machine?
a. 589.5cm
b. 567.4 cm
c. 530.6 cm
d. none of the above
553.5 cm
589.5cm
A 30-disk double-offset-disk harrow is travelling at a speed of 10
kph. If the disk diameter is 40 cm spaced at 30cm, what is the
cutting width of the harrow?
a. 860.5 cm
b. 875.4 cm
c. 850.3 cm
d. none of the above
What is the theoretical field capacity of the harrow in item above?
a. 8.6 ha/hr
b. 8.7 ha/hr
c. 8.5 ha/hr
d. none of the above
860.5 cm
8.6 ha/hr
The identification of the given tire with its maximum
recommended load when used in specific type service.
a. tire rating
b. tire lug rating
c. ply rating
d. all of the above
ply rating
A machine that is used with small plow and harrow designed for
rice farming operation.
a. puddling-type floating tiller
b. power tiller
c. hydro tiller
d. all of the above
power tiller
A ribbed type v-belt where the ribs are positioned along the belt
length.
a. V-ribbed belt
b. Cogged belt
c. Timing belt
d. None of the above
V-ribbed belt
The center of resistance of moldboard plow is located
a. at the center of moldboard
b. at the intersection of moldboard and share
c. at the center of share
d. none of the above
at the intersection of moldboard and share
ASAE stands for
a. American Society of Automotive Engineers
b. American Society of Agricultural Engineers
c. American Society of Air-conditioning Engineers
d. All of the above
American Society of Agricultural Engineers
The optimum puddler speed for puddling-type floating tiller is
a. 100-150 rpm
b. 200-250 rpm
c. 300-350 rpm
d. none of the above
200-250 rpm
Part of soil profile exploited by the roots of the plant.
a. root bed
b. root zone
c. tillage zone
d. none of the above
root zone
The soil profile modified by tillage or amendments for use by
plant roots
a. root bed
b. root zone
c. tillage zone
d. none of the above
root bed
When plowing requires for the soil to be incorporated or mixed
with grasses and weeds, as an Agricultural Engineer you will
recommend
a. disc plow
b. rotary plow
c. moldboard plow
d. all of the above
rotary plow
Manual transplanting of rice is advantageous over mechanical rice
transplanter in terms of
a. intelligence
b. dexterity
c. cost
d. none of the above
dexterity
If soil clods are needed to be inverted during plowing, the
agricultural engineer will recommend a
a. disc plow
b. moldboard plow
c. all of the above
moldboard plow
An agricultural engineer will recommend in order to loosen the
soil during plowing, a
a. subsoiler
b. field cultivator
c. chisel plow
d. none of the above
chisel plow
It is a factor which consider the physical condition, heart-beat
ratio, and body weight of a person when operating a machine.
a. humanistic factor
b. mechanical operation factor
c. ergonomic factor
d. all of the above
ergonomic factor
Ten-hectares of rice farm is to be harvested manually in 2 days
using sickle (8hr/day). If the field efficiency is 80 % and the man-
hour/hectare for harvesting is 60, how many persons will be
needed to harvest the rice?
a. 27 persons
b. 37 persons
c. 47 persons
d. none of the above
47 persons
Compute the power developed by 600 kg horse pulling 80-kg load
at a speed of 0.9 m/sec.
a. 0.94 hp
b. 0.87 hp
c. 0.99 hp
d. none of the above
0.94 hp
It is a part of seeder that eventually distributes seed in rows.
a. metering device
b. drive wheel
c. seed hopper
d. none of the above
metering device
It is a machine which has one or more elements that rotates about
a vertical axis and cut grass by impact.
a. rotary mower
b. grass cutter
c. power scythe
d. all of the above
rotary mower
The pivotal point of connection of hitch to the tractor or a center
of the articulated connection between link and the implement.
a. link point
b. hitch pin
c. hitch point
d. all of the above
hitch point
A part of mechanism that they may be added to a functional
power unit, not utilizing its mechanical power for the purpose of
enhancing the performance of that unit.
a. auxillary unit
b. spare parts
c. accessory
d. none of the above
accessory
Power take-off rpm of lawn mower and garden ride-on tractors.
a. 1000 rpm
b. 540 rpm
c. 2000 rpm
d. none of the above
2000 rpm
A frame for protection of operators of compact utility tractors to
minimize the possibility of serious crushing injury to the operator
resulting from accidental upset.
a. roll bar
b. tractor shield frame
c. roll-over protection structure
d. none of the above
roll-over protection structure
Maximum tire inflation pressure for agricultural implement.
a. 40 psi
b. 60 psi
c. 100 psi
d. none of the above
60 psi
A sprayer containing 100 liters of mixture operates at a nozzle
discharge of 0.2 liters per minute per nozzle. If the sprayer boom
consist of 6 nozzles, what time does the sprayer mixture be
changed?
a. 2.5 hrs
b. 1.39 hrs
c. 6.8 hrs
d. none of the above
1.39 hrs
It is a structural member of an implement where tillage tool to be
a beam attached.
a. boom
b. shank
c. gang
d. none of the above
shank
Warranty of parts and services for heated-air mechanical grain
dryer based on PAE Standard is within ____ after the acceptance of
the machine.
a. 6 months
b. 12 months
c. 18 months
d. 24 months
e. None of the above
12 months
It is the ratio of the heat released by the fuel of a heated air
mechanical dryer to the theoretical heat available from the fuel.
a. Burner efficiency
b. Furnace efficiency
c. Combustion efficiency
d. None of the above
Combustion efficiency
In testing agricultural machines as prescribed in the PAES standard
of test, it should be operated by ______.
a. Farmers
b. Traders/Cooperatives
c. Manufacturer(s) representative
d. Accredited Testing Organization
e. None of the above
Manufacturer(s) representative
Holding capacity of mechanical dryer during testing as prescribed
by PAES should be based on the _____ and other accompanying
information such as moisture content and purity
a. volume
b. weight
c. density
d. None of the above
weight
Milling test of samples during the test of mechanical grain dryer
based on the PAES standard test should be conducted at least _____
after drying test.
a. 24 hours
b. 48 hours
c. 36 hours
d. None of the above
48 hours
Thermometer sensors during testing of agricultural machines
should be partially shielded to minimize ______.
a. mechanical damage of thermometer sensor
b. error from heat of radiation effect
c. error from conduction of heat from wall of the machine
d. None of the above
error from heat of radiation effect
The minimum number of trial(s) required in testing heated air
mechanical grain dryer as specified in PAES.
a. one
b. two
c. three
d. None of the above
two
Time interval of measurement of test parameters in heated air
mechanical dryer as specified in the PAES Test Method.
a. 15 minutes
b. 30 minutes
c. 45 minutes
d. 60 minutes
30 minutes
Commonly used threshing cylinder for axial flow rice thresher.
a. peg-tooth
b. rasp bar
c. wire loop
d. None of the above
peg-tooth
The shaft rpm of a rice thresher will need to be _____ if the
diameter of the threshing cylinder is reduced.
a. increased
b. reduced
c. remain the same
d. None of the above
increased
Warranty for the construction and durability of mechanical rice
thresher according to PAES standard shall be within _____ after the
purchased of the machine.
a. 6 months
b. 12 months
c. 18 months
d. 24 months
e. None of the above
6 months
All rotating parts of agricultural machines as provided in the PAE
Standards should be _______
a. rigid
b. dynamically balanced
c. uniform in speed
d. None of the above
dynamically balanced
Which of the following parts are treated to be dangerous as stated
in Philippine Agricultural Engineering Standards for ensuring
safety in agricultural machineries.
a. Pulleys
b. clutches
c. coupling
d. All of the above
All of the above
Recommended material in the manufacture of pin sleeve and hitch
pin for walking type power tiller.
a. mild steel
b. cold-rolled steel
c. Spring steel
d. None of the above
cold-rolled steel
A centrifugal pump that develops a vacuum sufficient enough for
atmospheric pressure to force the liquid though the suction pipes
into the pump casing with out initially feeding the pump to create
suction.
a. pressure pump
b. self-priming pump
c. mixed flow pump
d. None of the above
self-priming pump
A type of pump which develop most of the suction and discharge
head by propelling or lifting action of the impeller vanes on the
water.
a. axial flow pump
b. Centrifugal pump
c. Mixed flow pump
d. None of the above
axial flow pump
It is the formation of void spaces filled with water vapor due to
local pressure drop and collapse as soon as the vapor bubbles reach
regions of high pressure.
a. water hammer
b. cavitation
c. bubling
d. none of the above
cavitation
A type of pump with vanes or impellers rotating inside a close
housing which draws water into the pump through a central inlet
opening and forces the water out through a discharge outlet at the
periphery of the housing.
a. axial flow pump
b. centrifugal pump
c. mixed flow pump
d. none of the above
centrifugal pump
A type of pump which combines some of the feature of both the
centrifugal and axial pump and in which head is developed partly
by the centrifugal force and partly by the lift of the vanes on the
water.
a. self-priming pump
b. diffuser-type centrifugal pump
c. mixed flow pump
d. none of the above
mixed flow pump
This represents the interrelationship between capacity, head, power,
NPSH, and the efficiency of the pump.
a. pump characteristics
b. performance curve
c. pump laws
d. none of the above
performance curve
It is the filling up of water in the pump to evacuate the entrapped
air through a vent and create a liquid seal inside the casing.
a. Feeding
b. recharging
c. priming
d. None of the above
priming
The cylinder diameter of mechanical rice thresher is the measured
distance from _______.
a. the base of the threshing element passing through the shaft axis.
b. the tip of the threshing element passing though the shaft axis.
c. the outlet of the cylinder cover
d. none of the above
the tip of the threshing element passing though the shaft axis
The maximum moisture content of grain to be used for testing
mechanical thresher should not be more than _____
a. 18%
b. 24%
c. 28 %
d. None of the above
24%
The grain-straw ratio for samples to be used for testing should be at
the ranged of ________.
a. 0.35 to 0.50
b. 0.50 to 0.65
c. 0.65 to 0.80
d. None of the above
0.50 to 0.65
The minimum number of hours required in testing rice thresher
based on PAE standards.
a. 0.5 hour
b. 1 hour
c. 2 hours
d. None of the above
1 hour
A thresher has a capacity of 30 cavans per hour. Three men are
required to operate the thresher. The other data are as follows:
Purchase price = P40, 000 including engine
Utilization = 1, 500 hours per year, 8
hours/day
Estimated life = 7 years
What is the depreciation cost using straight line method?
a. 6, 568.35/year
b. 3, 784.56/year
c. 5, 142.86/year
d. none of the above
5, 142.86/year
What is the total fixed cost in the item above if the cost of money is
21 % per annum?
a. 10, 542.86/year
b. 13, 542.86/year
c. 12, 542.86/year
d. none of the above
13, 542.86/year
What is the total variable cost in the item above using the following
additional data?
Size of engine = 10 hp
Specific fuel consumption = 0.85 lb/BHP-hr
Cost of fuel = P13.60/liter
Fuel specific gravity = 0.76
Salary of Laborers = P100.00/day-person
a. 159, 882.00/year
b. 234, 765.00/year
c. 456,854.00/year
d. none of the above
159, 882.00/year
What is the threshing cost for the thresher above?
a. P3.85/cavan
b. P2.87/cavan
c. P2.78/cavan
d. None of the above
P3.85/cavan
It is a metallic or synthetic lining for a hole which reduces or
prevents abrasion between components of a machine.
a. bearing
b. bushing
c. gasket
d. All of the above
bushing
A heat treatment method to increase the hardness of steel by rapid
cooling.
a. tempering
b. quenching
c. annealing
d. none of the above
quenching
A gas-metallic arc welding which uses inert gas shielding to
produce a cleaner and sounder weld compared with conventional
welding.
a. gas welding
b. MIG welding
c. TIG welding
d. all of the above
MIG welding
A widely used method of welding aluminum, copper, stainless
steel, and other difficult-to-weld metals.
a. TIG welding
b. MIG welding
c. gas welding
d. all of the above
TIG welding
A device suitable for cutting stainless steel plate.
a. shear cutter
b. plasma cutter
c. acetylene gas cutter
d. all of the above
plasma cutter
Ductility which is one of the properties of metals refers to:
a. its resistance to penetration
b. how much the material is deformed
c. how much the material absorb impact before it breaks
d. all of the above
how much the material is deformed
A type of bearing used to restrain endwise motion of a turning
shaft or withstand axial load.
a. ball bearing
b. thrust bearing
c. roller bearing
d. none of the above
thrust bearing
A drive where shafts are operating on a counter clockwise
directions.
a. open drive belt
b. chain and sprocket
c. gears
d. all of the above
gears
Adrive where shafts are operating in a uni-direction.
a. gears
b. cross-belt
c. chain and sprocket
d. none of the above
chain and sprocket
A belt transmission suitable for cross-drive system.
a. v-belt
b. timing v-belt
c. flat belt
d. none of the above
flat belt
If the pulley to be driven requires to be turned in counterclockwise
direction, what drive system would you recommend?
a. open drive
b. quarter-turn drive
c. cross-drive
d. all of the above
cross-drive
When one pulley is to be driven horizontally and the other pulley
is to be driven vertically, what drive system would you
recommend?
a. open drive
b. quarter turn drive
c. cross drive
d. all of the above
quarter turn drive
It is a power transmission device used to deliver misaligned shaft.
a. gears
b. sprocket and chain
c. universal joint
d. all of the above
universal joint
It is a kind of steel used in making disk plow bottom.
a. tool steel
b. soft-centered steel
c. molybdenum steel
d. none of the above
soft-centered steel
When welding deposit is applied to strengthen peg-tooth of a rice
thresher, this method of treating metal is used.
a. heat treatment
b. welding
c. hard facing
d. none of the above
hard facing
Mixing of two or more substances wherein one of which is metal.
a. casting
b. forging
c. alloying
d. none of the above
alloying
If some belts on multiple v-belt drive are worn out, it is
recommended that
a. worn-out belts should be immediately replaced
b. wait until all belts are worn-out before replacing the belts
c. all belts should be replaced
d. none of the above
all belts should be replaced
Which of the following v-belt is larger and stronger?
a. type A
b. type B
c. type C
d. all of the above
type C
Commonly used V-belt for agricultural operation in the
Philippines.
a. type A
b. type B
c. type C
d. all of the above
type B
A service offered by manufacturers in repairing and replacing
unintentionally damaged part of a machine to its customers for a
specified period.
a. manufacturing service
b. customer’s service
c. after-sales-service
d. all of the above
after-sales-service
Cost of machine including shipment.
a. free-on-board
b. freight-on-board
c. cost-in-freight
d. none of the above
freight-on-board
The strength, durability, and service of a farm machine depends
largely on
a. cost of material
b. weight of material
c. quality of material
d. all of the above
quality of material
A substance commonly used as coating to protect iron against
corrosion.
a. tin
b. zinc
c. aluminum
d. all of the above
zinc
When buying flat belt, the common parameters used are
a. width and thickness
b. width and ply no.
c. width and weight
d. none of the above
width and ply no.
A v-belt whose specification is B-32 means.
a. type B with circumferential length of 32 inches
b. type B with circumferential length of 32 cm
c. standard type v-belt whose strength is 32 times stronger than
type B
d. none of the above
type B with circumferential length of 32 inches
In a variable-pitch sheaves, the recommended belts used are
a. double v-belt
b. timing v-belt
c. adjustable speed belt
d. none of the above
adjustable speed belt
A device that gives mechanical advantage.
a. fulcrum
b. pulley
c. wheel and axle
d. all of the above
all of the above
The smallest gears that are meshing together.
a. spur
b. bevel
c. pinion
d. all of the above
pinion
A type of gear used for power-take off drive.
a. worm gear
b. spur gear
c. spline shaft gear
d. none of the above
spline shaft gear
If roller chain number 40 is to be replaced by no. 60, the strength
of chain will
a. decrease
b. increase
c. remain except the size
d. none of the above
increase
The ASAE designation for adjustable speed v-belt is.
a. HA to HD
b. HAA to HCC
c. HI to HO
d. All of the above
HI to HO
What is the length of arc of a v-belt on a 6 inches sheaves whose
angle subtended by the arc of belts is equal to 90 degree.
a. 4.69 in
b. 3.49 in.
c. 6.94 in.
d. none of the above
4.69 in
A component part of machine that transmits torque and speed is
a. bearing
b. shaft
c. chain
d. none of the above
shaft
If the shaft of an engine rotates at the same speed with the shaft of
the driven machine on the same axis, the transmission system is
a. belt and pulley
b. sprocket and chain
c. direct couple drive
d. none of the above
direct couple drive
A pulley that is used to tighten belt in a drive system.
a. flat pulley
b. idler pulley
c. v-pulley
d. none of the above
idler pulley
A grove that is placed on a shaft to prevent pulley from slippage.
a. keyway
b. keyhole
c. key
d. none of the above
keyway
The recommended drive to transmit power to a shaft located about
6 meters is
a. chain drive
b. gear drive
c. v-belt drive
d. none of the above
none of the above
If the desired rotation for two parallel shafts is counterclockwise,
what flat-belt drive would you recommend?
a. open drive
b. quarter turn drive
c. cross drive
d. all of the above
cross drive
If a large factor of safety is used in the design, product would tend
to be
a. reliable
b. expensive
c. efficient
d. none of the above
expensive
Standards are used in the design basically to
a. reduce cost of the product
b. minimize potential liability in designing product
c. provide easy mechanism for interchanging machinery parts
d. all of the above
all of the above
A metal sheet with gauge number equal to 14 means
a. 14 mm thick
b. 14 pieces of metals sheet in a stock
c. 14 pieces in one inch thickness
d. none of the above
14 pieces in one inch thickness
A 4 feet wide x 8 feet long with 1/8-in. thick is
a. metal sheet
b. metal plate
c. metal strip
d. none of the above
metal plate
A material commonly used as axle of agricultural machines.
a. cold rolled steel shaft
b. malleable steel round bar
c. round cast iron
d. none of the above
cold rolled steel shaft
The factor that affects the horsepower requirement of a shaft.
a. torque
b. rpm shaft
c. peripheral velocity of shaft
d. all of the above
all of the above
Flat pulleys are provided with crown to
a. keep the required tension of belt
b. prevent belt slippage
c. make the pulley durable
d. none of the above
prevent belt slippage
If the driver pulley diameter is increased, the speed of the driven
pulley will
a. decrease
b. increase
c. rotate at the same speed
d. none of the above
increase
If the two shafts are perpendicular with each other, what type of
driven system would you recommend?
a. flat belt
b. v-belt
c. sprocket and chain
d. all of the above
flat belt
