B Flashcards
The ratio between the numbers 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
a. Weeding index
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
c. direct drive
The ratio between the mass of fuel consumed per unit time and the
corresponding power measured.
a. Specific fuel consumption
b. Fuel to mass ratio
c. Fuel consumption rate
d. None of the above
a. Specific fuel consumption
As a rule of thumb, single-phase alternating current electric motor should
be used for applications requiring:
a. < 4 hp
b. < 5 hp
c. < 6 hp
d. < 7 hp
b. < 5 hp
The projection of cash inflow and outflow of a farm to estimate the
incremental net benefit of the life of the project is known as:
a. Farm budget
b. Farm plan
c. Farm inventory
d. Farm contract
a. Farm budget
The gearbox placed on first gear will develop…
a. high torque - high speed
b. low torque – low speed
c. high torque – low speed
d. low torque – high speed
c. high torque – low speed
A transaction by your company this year involving the repayment in cash of
a portion of the long term loan of the company in the amount of P 70,000.00
would have the following effect:
a. increase in assets = increase in liabilities
b. decrease in assets = decrease in liabilities
c. increase in assets = increase in ownership
d. increase in one asset= decrease in another asset
b. decrease in assets = decrease in liabilities
It results in the reduction of the purchasing power of monetary unit.
a. deflation
b. devaluation
c. incision
d. inflation
d. inflation
A six-bottom moldboard plow is to be used to plow a heavy soil. How many
scrapers are there in the plow?
a. 2 c. 6
b. 4 d. None of the above
c. 6
It is a part of the plow that connects the plow bottom and the frame.
a. Upper hitch point
b. Boom
c. Shank
d. None of the above
c. Shank
Material recommended by PAES for use as implement frame.
a. Mild steel
b. Cold rolled steel
c. Spring steel
d. None of the above
a. Mild steel
Material recommended by PAES in the manufacture of disk blade.
a. Mild steel
b. Carbon steel
c. Cast iron
d. None of the above
b. Carbon steel
When a disk harrow consists of a front and rear gangs and is centrally
positioned with the tractor, it is classified as _________?
a. Single action harrow
b. Double action harrow
c. Offset harrow
d. None of the above
b. Double action harrow
When a disk harrow consists of a front gang only and is centrally positioned
with the tractor, it is classified as _________?
a. Single action harrow
b. Double action harrow
c. Offset harrow
d. None of the above
a. Single action harrow
When a disk harrow consists of a front and/or rear gangs and is not
centrally positioned with the tractor, it is classified as _________?
a. Single action harrow
b. Double action harrow
c. Offset harrow
d. None of the above
c. Offset harrow
The angle between the axis of the set of disks and the line perpendicular
to the direction of the implement.
a. Disk angle
b. Gang angle
c. Implement angle
d. None of the above
b. Gang angle
The horizontal seed plate is used for:
a. row-crop drill planter
b. hill-drop planter
c. solid drill planter
d. broadcaster
b. hill-drop planter
Planters designed to plant seeds continuously in rows with row spacing
greater than 36 cm is called:
a. row-crop drill planter
b. hill-drop planter
c. solid drill planter
d. broadcaster
a. row-crop drill planter
The groundwheel of a planter is normally related to the operation of the:
a. furrow opener
b. metering device
c. seed tube
d. double-disc closer
b. metering device
Part of a planter that is always present in all planters regardless of
type and cropping system:
a. furrow opener
b. metering device
c. seed tube
d. furrow closer
b. metering device
Two kilogram of rice is to be prepared for cooking. Estimate the time
required to cook it.
a. 10.92 min
b. 11.92 min
c. 12.92 min
d. 13.92 min
b. 11.92 min
(Time to Cook = 550(Weight of Rice)^ 0.38
Planter designed to plant seeds in rows and in hills is called:
a. row-crop drill planter
b. hill-drop planter
c. solid drill planter
d. broadcaster
b. hill-drop planter
The adjustable orifice with agitator is used for:
a. row-crop drill planter
b. hill-drop planter
c. broadcaster
d. transplanter
a. row-crop drill planter
Parameter not required in the calibration of a planter is:
a. row spacing
b. ave. seed emergence
c. forward speed
d. groundwheel diameter
c. forward speed
Planter designed to place seedlings in rows and in hills is called:
a. row-crop drill planter
b. hill-drop planter
c. solid drill planter
d. transplanter
d. transplanter
The IRRI drum seeder is an example of:
a. row-crop drill planter
b. hill-drop planter
c. solid drill planter
d. broadcaster
c. solid drill planter
Parameter not required in determining the field capacity of a planter:
a. width of planter
b. forward speed of planter
c. No. of seeds per hill
d. efficiency of planter
c. No. of seeds per hill
Method of pest control not considered engineering control is:
a. chemical control
b. biological control
c. mechanical control
d. a and b
b. biological control
Sprayers are used primarily for the application of :
a. herbicides
b. insecticides
c. fungicides
d. pesticides
d. pesticides
Which of the following is not a spray nozzle pattern?
a. hollow cone nozzle pattern
b. solid cone nozzle pattern
c. hollow fan nozzle pattern
d fan nozzle pattern
c. hollow fan nozzle pattern
Operation with the highest manual labor requirement for lowland rice:
a. plowing with carabao
b. hand transplanting
c. weeding with push-type weeder
d. manual harvesting
c. weeding with push-type weeder
Principle used in creating hydraulic energy in a lever-operated knapsack
sprayer is:
a. adding air to a container with fixed volume of liquid
b. adding liquid to a container with a fixed volume of air
c. adding liquid to a container with an existing volume of liquid
d. adding air to a container with an existing volume of air
b. adding liquid to a container with a fixed volume of air
If mechanical work is done at a rate of 1 ft-lb/sec, what is its
equivalent in watts?
a. 43.7
b. 746
c. 0.74
d. 1.356
d. 1.356
It is a self-propelled machine having a single axle designed primarily to
pull and propel trailed or mounted agricultural implement and machinery.
a. Walking-type tractor
b. Pedestrian tractor
c. Hand tractor
d. All of the above
d. All of the above
Warranty period for hand tractor from the purchase of the machine.
a. 4 months
b. 6 months
c. 12 months
d. All of the above
b. 6 months
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
c. 14 pieces in one-inch thickness
The required water temperature in testing pump
b. 10C - 40C
The criteria used in evaluating the performance of a machine.
a. Reliability of machine
b. Environment and safety
c. Cost of operation
d. All of the above
d. All of the above
The development of a desirable soil structure for a seedbed does not
include:
a. higher water infiltration rate
b. increased water surface runoff
c. greater water holding capacity
d. promotion of root penetration
b. increased water surface runoff
Soil cut, lifted, inverted and thrown to one side of the blow bottom is
termed:
a. furrow
b. furrowslice
c. backfurrow
d. Deadfurrow
b. furrowslice
Bend sideward of the point of the share to make the plow cut the proper
width is:
a. vertical clearance
b. horizontal suction
c. disc angle
d. tilt angle
b. horizontal suction
The angle the disc of a disc plow makes with the direction of travel to
make it cut the proper width and allow it to rotate when moving forward is:
a. 15 – 25 degrees
b. 42 – 45 degrees
c. 55 – 60 degrees
d. 30 – 36 degree
b. 42 – 45 degrees
In the equation C = SWEff/10
, C is capacity expresses in:
a. m2/h
b. m2/day
c. ha/h
d. ha/day
c. ha/h
Floating power tillers are used in:
a. 2-wheel tractor for wetland op.
b. 2-wheel tractor for dryland op.
c. 4-wheel tractor for wetland op.
d. 4-wheel tractor for wetland op
b. 2-wheel tractor for dryland op.
The mechanical function of the planter does not include:
a. sort the seeds
b. meter the seeds
c. deposit the seeds
d. cover the seeds
a. sort the seeds
The horizontal seed plate is used for:
a. row-crop drill planter
b. hill-drop planter
c. solid drill planter
d. broadcaster
b. hill-drop planter
Method of pest control not considered engineering control is:
a. chemical control
b. biological control
c. mechanical control
d. a and b
b. biological control
Sprayers are used primarily for the application of :
a. herbicides
b. insecticides
c. fungicides
d. pesticides
d. pesticides
Which of the following belong to the group of variable displacement pump?
a. centrifugal pump
b. mixed flow pump
c. air lift pump
d. all of the above
d. all of the above
In the equation for horsepower, Hp =
3960xEff
QxH
, Eff is:
a. efficiency of pump
b. efficiency of transmission
c. efficiency of prime mover
d. efficiency of the system
d. efficiency of the system
The direct type of power transmission system has:
a. 90% Eff
b. 95% Eff
c. 98% Eff
d. 100% Eff
d. 100% Eff
Select two consecutive farm operations which when done mechanically can
increase cropping intensity:
a. planting – spraying
b. irrigation – weeding
c. harvesting – plowing
d. harvesting – threshing
c. harvesting – plowing
1 pk is equal to ____________ watts
a. 735.49
b. 740.12
c. 760.00
d. None of the above
a. 735.49
The gasoline engine is characterized as
a. low first cost – high operating cost
b. low first cost – low operating cost
c. high first cost – high operating cost
d. high first cost – low operating cost
a. low first cost – high operating cost
The three-phase electric motor is characterized as.
a. low first cost – high operating cost
b. low first cost – low operating cost
c. high first cost – high operating cost
d. high first cost – low operating cost
b. low first cost – low operating cost
Indicates the maximum load that can be safely carried by an electric
motor under continuous operation:
a. duty rating
b. service factor
c. hp rating
d. current ratin
b. service factor
The piston goes up and the two valves remain closed is termed:
a. intake
b. compression
c. power
d. exhaust
b. compression
Type of transmission system where the speed ratio depends on the teeth
ratio of the two members:
a. gears
b. chain and sprocket
c. belt and pulley
d. a and b
d. a and b
In a compression-ignition engine, the fuel is introduced into the
cylinder at the:
a. start of intake
b. start of compression
c. end of intake
d. end of compression
d. end of compression
A valve operates:
a. once per cycle
b. twice per cycle
c. 3X per cycle
d. 4X per cycle
a. once per cycle
The thermal efficiency range for internal combustion engines is:
a. 25 – 36%
b. 36 – 50%
c. 50 – 75%
d. 75 – 90%
a. 25 – 36%
Type of power transmission system where clutch action is possible:
a. direct coupling
b. chain and sprocket
c. belt and pulley
d. gears
c. belt and pulley
The gearbox placed on first gear will develop:
a. high torque - high speed
b. low torque – low speed
c. high torque – low speed
d. low torque – high spee
c. high torque – low speed
