PART 1. TERMS Flashcards
The amount of power that the manufacturer specified for an engine.
rated horsepower
a mechanical breaking up fuel into spray droplets by high velocity of air passing through a jet
atomization
during the power stroke, which of the following valve is open
a. intake
b. exhaust
c. intake manifold
d. a and b
e. NOTA
power transmitted to the pistons by the gas in the cylinder
indicated horsepower
number of spark plugs for a 6-cylinder diesel engine
none (spark plugs are for SI (gasoline engine))
two pistons running at the same time in the same direction but performing different strokes
running mate
it is the ration of the drawbar power and the wheel axle power of a tractor
traction efficiency
an international trade, FOB means
free on board
distance of movement of the piston from the top dead to the bottom dead center
stroke
reduction of engine speed or flow of fuel
throttling
a device that meters the fuel and air and mixes them into harmonious mixture before the mixture enters the combustion chamber of an engine
carburetor
the space when the piston is at the top dead center
clearance volume
part of an engine that converts reciprocating motion into rotary motion
crankshaft
it is the amount of energy received by any surface perpendicular to the ray of the sun at any day and time
solar constant
is a thermochemical conversion characterized by the absence of oxidant (oxygen) and it is also known as destructive distillation
pyrolysis
system of number indicating the ignition quality of the diesel fuel
cetane rating
the speed of the engine is automatically regulated by the __
governor
a device that converts kinetic energy of the wind to mechanical power
rotor
wind machine that is used for lifting power
wind pump
a substance that is added to the tractor for the purpose of changing traction and stability
a ballast
the inherent characteristics of tractors to maintain or to produce increased drawbar pull even if the speed is reduced
lugging ability
it is the special arrangement of gears to permit driving member to rotated slower or faster than the other and permit operation of driving wheels at different speed for easy turn
differential
it is an indicator of the amount of fuel is a furnace that is converted into ash
burning efficiency
part of the plow bottom which helps to counteract the side pressure exerted by the furrow slice
landside
an angle of the disk plow in reference to the vertical plane
disk angle
a gang arrangement on a disk harrow consisting of two gangs of disk placed end-to-end which throws the soil in opposite direction
single action
the highest possible power coefficient of a windmill
0.593
a device to measure the quantity of oil in a crankcase
dipstick
the act of analyzing, testing, and measuring the engine to remedy the cause of the trouble
trouble shooting
it is the utilization of hand tools, implements for draft animals, and mechanically-powered machines for agricultural land development, production, harvesting and on-farm processing
agricultural mechanization
machine element that transmit torque and power
shaft
a procedure in which planting is made directly into an essentially unprepared seedbed
zero tillage
the pushing or rolling of soil by a steeply inclined blade
bulldozing
the angle in a vertical plane perpendicular to the direction of travel between a centralized tool or reference axis and the soil surface
tilt angle
it is the ratio of the number of weeds removed by the weeder to the number of weeds per unit area
weeding index
a field sprayer that is being carried at the back by means of should straps
knapsack sprayer
a machine that involvers combing the grain from the plant while the plant remain anchored
stripper harvester
it is the ratio of the weight of cleaned threshed grain to the grain input
threshing recovery
the center-to-center distance between overlapping broadcast application
swath
a name given to by a manufacturer to its product to distinguish them from the ones produced by other manufactureres
brand name
a soil tool reaction in which soil slides over the surface of the tillage tool without significant adhesion
scouring
an instrument used to measure the draft of the plow
dynamometer
it is the cultivation of one crop underneath a perennial crop
inter-culture
a transport machine used in agriculture suitably designed for coupling to an agricultural tractor or self-propelled combine
agricultural
a transport machine used in agriculture suitably designed for coupling to an agricultural tractor or self-propelled combine
agricultural trailer
a rotating device located inside the hopper of gravity flow applicator and broadcast spreaders to enhance delivery of granules to the adjustable office of the machine
agitator
a heat treatment method to increase the hardness of steel by rapid cooling
quenching
mixing of two or more substances wherein one of which is metal
alloying
device that gives mechanical advantage
fulcrum
pulley
wheel and axle
lever
the smallest gears that are meshing together
pinion
it is the process of cutting holes to a material by means of shearing process
punching
when buying angle bars, the right specification is
thickness and width
the higher the carbon content of steel, the __
stronger
the ability of a good or service to satisfy human wants
utility
the group of costs associated with initiation of an activity and which occurs only once for any given activity
first cost
a uniform payment series is one of that consists of equal payments
starting one year from now increasing by a uniform amount up to year n
the ability of a manager to choose appropriate objectives of the appropriate means for achieving a given objective
efficiency
also know as the Philippine Agricultural Engineering Act of 1998
RA 8559
also know as the National Building Code of the Philippines
RA 6541
when viewed in front, tractor tires must be mounted with the v-pattern pointing in waht direction
downward
this must be high enough in order to self-ignite the air-fuel mixture in a diesel engine
compression temperature
the three c’s in promotion, in reference to message designing are
convincing, clear, compelling
a radio service panel truck initially costs 56,000. Its resale value at the end of the fifth year is estimated at 15,000. Determine the annual depreciation cost by straight line method
8,200
power requirement of hold-on thresher to throw-in thresher
lesser
ROPS
Rollover Protective Structure
management concerned with an effective recruitment, selection, placement, development, maintenance, and utilization of manpower to obtain optimum efficiency of labor
personal management
for developing countries, this power can be viable and economic option for small farm mechanization
animal
dirty engine oil is characterized by
black smoke at the exit
tractor hp is usually __ greater than drawbar hp
20%
it is the measure of long-term financial stability of the business enterprise
solvency
it is a group of persons who voluntarily join together with a common objective and bond of interest
cooperative
promotion corresponds to what C of marketing
communication
a public institution that usually issues the currency, regulates money supply, and controls the interest rates in a country
central banks
It is the tax imposed by the government on imported goods.
TARIFF
It is the exchange of goods and services measured in terms of money.
price
The primary factor that affects the performance of the sprayer.
Spray-particle size
API
American Petroleum Institute
Primary gas produced during gasification.
Carbon Monoxide
Stoichiometric air requirement for gasification.
30 – 40 %
How many times greater is the power of a carabao over man?
10x
Robin engines are manufactured from?
Japan
Changing of transmission oil for tractors should be done every
6 months or 24,000
km
A engine with no load is in what condition?
Idle condition
Bulk density of rice rusks.
100-120 kg/m3
A process by which a farm manager looks ahead to the future and contemplates
alternative courses of action for the farm.
farm planning
Involves converting inputs into outputs.
Production
It is an increase in the production of economic goods and services.
Economic growth
Period of heat and greatest receptivity to male, rapture of ovarian follicles in most
farm animals.
ESTRUS
Part of a rice thresher which encloses the threshing cylinder and allows the separation of
grains from the panicles.
CONCAVE
What part of the internal combustion engine is usually made of cast iron and the primary function is to maintain uniform engine speed by carrying the crankshaft through those intervals when it is not receiving energy from a piston?
FLYWHEEL
What is the effective swath of the boom sprayer?
75 CM
It is the ratio of the drawbar power and the wheel axle power of a tractor.
traction efficiency
Average power density of solar heat striking the earth surface.
0.89 kW/m2
It is an indicator of the amount of fuel in a furnace that is converted into ash.
burning efficiency
A gas produced from agricultural waste which is odorless, tasteless, colorless and flammable.
CO
The caloric value of fuel is
the amount of heat contained by the fuel per unit weight
The elemental analysis of biomass.
ultimate analysis
The highest possible power coefficient of a windmill.
0.593
Machine to be designed, if possible, should have __ reliability
95???
shock resistance of steel is increased by adding
nickel and chromium
kind of steel used for making tractor drawn disk plow bottoms
mild steel
it is a type of material failure where the stresses in the material exceeds the material’s ultimate strength causing it to fracture into two or more parts but has undergone plastic deformation
brittle fracture
a farmer decides to stop growing crop A and instead use the land to grow crop B. The amount of potential profit lost by not growing crop A represents the farmer’s
opportunity cost
a sliding bearing which can support steady loads without any relative motion between the journal and the bearing is called
boundary lubricated bearing
optimizing the use of farm resources on an individual farm level is dealt in
farm management
it is a type of material failure defined as a compressive instability that usually occurs for long members
buckling failure
this refers to the mean of the individual bottoms’ center of resistance each located one fourth the width of cut to the right of the landside and the junction of the share and the moldboard
center of plow resistance
for walking plows to cause the mounted plow to go deeper the plow body is tipped
ambot sad
it is an inter-organizational system made up of a set of interdependent activities aimed at expanding agricultural production
agricultural marketing machinery
this agent middleman usually does not have the physical control of the product, ordinarily follows the instructions of his principle closely and has less discretionary power in the price negotiations than the commission agents
broker
when the price of a product decreases, ceteris paribus, the product becomes cheaper. It is therefore, more attractive relative to other products and vice versa
substitution effect
little or no air cushion in the pressure cylinder of the knapsack sprayer would cause
insufficient rorororor
if leaks from the end of spray wand is observed when using a knapsack sprayer, what should be done
the force which resists motion of the wheels over a track or field surface
rolling resistance
when total utility increases, marginal utility is
positive
chain lubrication in which the lower strand of chain runs through a sump of oil in the drive housing
bath lubrication
typical diesel engine power requirement of power tiller used for plowing and harrowing rice field
7 hp
A sprayer with a pressurized liquid tank and in which the discharge is carried out with the air pressure created in advance by
built-in pump or from outside
Compression sprayer
Minimum area required for testing manually-operated seeder.
Not less than 500m2
Gauge wheels control the ____.
depth of penetration of shovel
An axial-flow type which is similar with the portable thresher with oscillating screen but larger in size usually equipped with
support wheel for ease of transport.
Mobile axial-flow thresher
RK Series Mitsubishi engines commonly used for power tillers basically are ___ water-cooled-type engines.
horizontal
In what order do managers typically perform the managerial functions? (POLC)
Planning, organizing, leading, controlling
What are the three interpersonal roles of managers? (FLL)
Figurehead, leader, liaison
The firing order of inline 8 cylinder engine is
1-5-4-8-7-2-6-3
Monitoring body for the service warranty provided by the assemblers, manufacturers, importers, suppliers, distributors, and
dealers of agri-fisheries machines under AFMech Law.
LGU and BAFE
Maxion Tractor is made from
Brazil
The perpendicular distance between the upper hitch point and the common axis of the lower hitch point of the tractor.
Mast height
Process of planning and executing the conception, pricing, promotion and distribution of ideas, goods, and services to create
exchange and satisfy the individual and organizational goals.
MARKETING
What is the term “rule of thumb” type of bias in decision making?
Heuristics
Axial flow rice thresher basically are powered by ___ gasoline engine
16 HP
Moldboard plow accessory primarily used to cut through the surface residues, encabling more complete coverage of surface
trash.
Rolling coulters
The process of placing seeds in holes made in seedbed and covering them.
Dibbling
When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they
are known as__
miter gears
Aerosol generator is a mechanical device that produces a liquid dispersion having a volume meadian diameter of less than
50 μm
This refers to a detailed and comprehensive document that describes all technical procedures related to product development
Technical Specifications
National Agri-fishery Mechanization Program is created under RA 10601 to do the following except
a. Promote and support through the provision of research grants, credit, transparent and predictable regulation, the local
development and manufacture of agricultural and fisheries machinery by the private sector;
b. Unify, lead and support the efforts of various institutions in the research, design and development of agricultural and
fisheries machinery;
c. Strengthen support services such as credit faculties, research, training and extension programs, rural infrastructures,
postharvest facilities and marketing services
d. Establish quality, safety and performance standards for agricultural and fisheries machinery;
e. Support the establishment of quality, safety and performance testing centers for the certification of agricultural and
fisheries machinery in strategic localities in the country
The area with lowest level of mechanization level.
Kalinga
Which of the following is a method for controlling weeds?
a. Cultivation by stirring the soil.
b. Use of flame and chemical.
c. Laying of plastic strips over the row.
d. All of the above
e. Both A and C
D
Accordingt o PNS/BAFS/PAES 192:2016, repair of defective units and provision of other after sales services shall be
undertaken within ______ upon the receipt of complaints.
72 hours
The standard for the Technical Means for Ensuring safety – Guidelines is .
PNS/BAFS 330:2022
Based on the PNS/BAFS for Knapsack Sprayer – Methods of Test, this test is carried out to evaluate the strength and
durability of the sprayer
PRESSURE TEST
Tractors with PTO power rating of 110-350kW at rated rotational frequency of engine ( determined by ISO 789-1) are
categorized (based on the categories of rear- mounted three- point linkage) as
4N/N
The - ratio of the milling recovery from the test rice mill to that from the laboratory whitener.
total milling recovery index
A forage chopper that uses a feeding mechanism consisting of four or more feed rolls to partially orient and advance the crop
at a consistent rate into the cutting mechanism producing the shortest and most uniformly cut particles
Precision-cut
For safety purposes, slow-moving vehicles such as agricultural machines must be provided with ___.
identification emblem to guide motorists that the machine is slow moving
This term refers to how frequent the motor is started and how long it will run each time it is started
Duty Rating
This represents the interrelationship between capacity, head, power, NPSH, and efficiency of the pump
Pump Performance Curve
This acts as second speed reduction point in the power train
differential
A detailed, precise diagram or plan that conveys information about how an object functions or constructed.
Engineering drawing
The sorting of products into lots or units according to one or more of its attributes
grading
When trooubleshooting, we should look at the
FACTS
Which of the following is a category of contract as to completion status?
a. Executory
b. Under seal
c. Implied
d. Void
e. Two-party
EXECUTORY
