EXAM P

Question 1

Too little piston clearance will cause:
a. seizing in the cylinder as the engine gets hot
b. loss compression
c. loss of oil pumping
d. imperfect valve timing

Question 2

A trench left when the plow bottom cuts and turns the furrow slice.
a. Back furrow
b. Dead furrow
c. Furrow
d. All of the above

Question 2

If the rotor of the windmill originally at 2 meters is to be reduced to 1
meter, the power output of the machine will be reduced by
a. Two times
b. Three times
c. Four times
d. None of the above

Question 3

Wind flows on a 2-m diameter rotor at a rate of 2 m/s. Suddenly, the
wind flows at 4 m/s, what would be the power output of the windmill?
a. 4 times
b. 6 times
c. 8 times
d. None of the above

Question 4

Small gasoline engine basically has a compression ratio of
a. 6:1
b. 10:1
c. 3:1
d. None of the above

Question 4

A gasoline without ethylene bromide of having an octane rating of 87
which sometimes caused knocking on the engine.
a. Premium
b. Leaded
c. Unleaded
d. All of the above

Question 5

A knocking sound produced due to incomplete combustion of fuel inside the
combustion chamber of an engine.
a. Detonation
b. Ignition
c. Carburetion
d. None of the above

Question 5

It is a device used to generate high voltage current needed for spark
plug in small engine.
a. Distributor
b. Contact point
c. Magneto
d. All of the above

Question 6

Part of a tractor that retards or stops one wheel during operation to be
able to make short turn.
a. Differential brake
b. Hand brake
c. Brake pedal
d. All of the above

Question 7

Part of the tractor engine where pistons slide back and forth and are
replaced when damaged.
a. Cylinder block
b. Cylinder liner
c. Cylinder head
d. All of the above

Question 8

A turbine and an air blower mounted ahead of the intake manifold of an
engine to force more air into the cylinder thereby increasing power
output of the engine by 10-15%.
a. Auxiliary reducer
b. Turbocharger
c. Power inducer
d. All of the above

Question 9

A device that converts energy of animal to useful work.
a. Head yoke
b. Breast strap
c. Harness
d. None of the above

Question 10

If two animals having 0.75 hp each are harnessed together, the pulling
output of the two animals is
a. Greater than 1.5 hp
b. Equal to 1.5 hp
c. Less than 1.5 hp
d. None of the above

Question 11

to the cage wheel of a power tiller.
a. Rotary
b. Spiral
c. Disk
d. All of the above

Question 11

16. 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

Question 11

It is the utilization of hand tools, implements for draft animals, and
mechanically-powered machines for agricultural land development,
production, harvesting and non-farm processing.
a. Agricultural development
b. Agricultural mechanization
c. Agricultural machinery and equipment
d. All of the above

Question 12

A primary-tillage plow used for small rice farm.
a. Moldboard
b. Rotary
c. Spiral
d. All of the above

Question 13

An angle of the disk plows in reference to the vertical plane.
a. Tilt angle
b. Disk angle
c. All of the above
d. None of the above

Question 14

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
d. All of the above

Question 15

A plow primarily for loosening the soil.
a. Lister plow
b. Disk plow
c. Chisel plow
d. All of the above

Question 16

A plow that is used to break up plow sole.
a. Chisel plow
b. Lister plow
c. Subsoiler
d. None of the above

Question 17

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

Question 18

A gang arrangement often called as “tandem harrow”.
a. Double-action
b. Single-action
c. Offset
d. None of the above

Question 19

A mechanical device used in fabricating farm tools will cost P120,000 when purchased. Maintenance will be P10,000 per year. It will generate revenues of P50,000 per year for five years. It has a salvage value of P30,000. If the enterprise targets a minimum attractive rate of return of 15% per year, will you recommend that the device be purchased? Why?

a. No, because the computed IRR of 12% is less than the MARR.
b. No, because the computed IRR of 14% is less than the MARR.
c. Yes, because the computed IRR of 24% is more than the MARR.
d. Yes, because the computed IRR of 15% is just equal to the MARR.

Question 20

Which of the following ratios cannot be calculated from a farm enterprise’s balance sheet? a. current ratio b. acid test ratio c. debt-to-equity ratio d. inventory turnover ratio

Question 21

Clearly assigning tasks, training, and supervising labor are among the rules for ____________. a. Labor Management b. Hiring c. Human Resources d. Applying

Question 22

This includes any goods employed in production other than land, labor, buildings and fences. a. infrastructures b. property c. capital d. currency

Question 23

Depth of plowing for common paddy field. a. 5 to 10 cm b. 10 to 15 cm c. 15 to 20 cm d. None of the above

Question 24

Depth of cultivated topsoil layer being practiced in modern upland farming a. 0 to 10 cm b. 10 to 20 cm c. 20 cm to 30 cm d. None of the above

Question 25

In paddy field plowing operation using a four wheel tractor, which of the following is true: a. Smaller plots are much efficient to plow than larger plots. b. Larger plots are much efficient to plow than smaller plots. c. Smaller or larger plots have the same plowing efficiency. d. None of the above

Question 26

It is a wheel less cultivator that is used for domestic gardening. a. Motor tiller b. Power tiller c. Puddling-type floating tiller d. None of the above

Question 27

Machine performance is determined by _____________. a. the rate and quality at which the operations are accomplished b. the speed to accomplished the given operation c. the power needed in accomplishing the given operation d. None of the above

Question 28

The rate of machine performance is usually expressed in terms of _______. a. quantity per unit time b. quality per unit time c. speed per unit time d. All of the above

Question 29

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

Question 30

Factors that influence the depth of penetration of disk harrow. a. Angle disk b. Angle of hitch c. Size of disk d. All of the above

Question 31

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

Question 32

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

Question 32

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

Question 33

Seeding directly into previously undisturbed soil. a. Much tillage b. No-till c. Minimum tillage d. None of the above

Question 33

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

Question 34

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

Question 35

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

Question 36

Which of the following agencies does not belong to the Department of Agriculture? a. BPRE b. BPI c. AMMDA d. RAEG

Question 37

How many times greater is the power of a carabao over man? a. 0.1 b. 1.0 c. 10 d. 100

Question 38

The word used to indicate that among several possibilities one is recommended as particularly suitable without mentioning or excluding others: a. Shall b. Should c. a or b d. none of the above

Question 39

The most recently developed system of harvesting and threshing of rice is: a. mechanical harvesting & threshing b. combining c. stripping d. all of the above

Question 40

A machine that cuts standing crop, conveys the cut crop to one side, and lays them down in an orderly manner is called: a. sickle b. reaper-windrower c. reaper-binder d. stripper

Question 41

An engine that burns fuel inside the cylinder. a. External combustion engine b. Internal combustion engine c. Sterling engine d. None of the above

Question 42

Part of engine that which slides up and down the cylinder and transmits power to the crankshaft. a. Connecting rod b. Cylinder block c. Piston d. Spark plug

Question 43

Tractor size is determined by _______________________. a. weight, horsepower, and size and number of wheels b. implement capacity, weight, and size and number of wheels c. weight, horsepower, and implement capacity d. weight, horsepower, and size ONLY

Question 44

An open trench left between the adjacent strips of land after finishing the plowing operation. a. Back furrow b. Dead furrow c. Furrow d. All of the above

Question 45

In the equation C = SWEff/10, W is width of cut expressed in: a. ft. b. m c. km d. mile

Question 46

General-purpose tillage equipment are used in: a. 2-wheel tractor for wetland op. b. 4-wheel tractor for dryland op. c. 4-wheel tractor for wetland op. d. all of the above

Question 47

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

Question 48

Which of the following is not a part of a typical lever-operated knapsack sprayer? a. tank b. pump c. pressure gage d. nozzle

Question 48

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

Question 49

Which of the following is not a typical example of a small single cylinder engine? a. air-cooled gasoline engine b. water-cooled gasoline engine c. air-cooled diesel engine d. water-cooled diesel engine

Question 50

The conventional system of harvesting and threshing of rice in the Philippines is: a. manual harvesting and threshing b. Manual harvesting and mechanical threshing c. mechanical harvesting and threshing d. combining

Question 51

The threshing action where grains are detached from their panicles when the straw is pulled through a “V” shaped configuration is called: a. rubbing action b. impact action c. stripping action d. a and b

Question 52

The development of PAES started in: a. 1985 b. 1990 c. 1995 d. 2000

Question 53

This must be high enough in order to self-ignite the air fuel mixture in a diesel engine. a. compression temperature b. valve compression c. intake pressure d. engine pressure

Question 54

These designs were introduced to increase tractor safety. a. DTR b. SRAF c. ROPS d. TE

Question 55

Fuel used for constant pressure cycle internal combustion engine. a. Gasoline b. Diesel c. Biomass d. None of the above

Question 56

How many fuel injection pumps are there in 4 cylinder four stroke cycle diesel engine? a. 1 b. 2 c. 4 d. None of the above

Question 57

How many fuel injection pumps are there in 4 cylinder four stroke cycle gasoline engine? a. 1 b. 2 c. 4 d. None of the above

Question 57

Compression ring is usually located ____________ . a. on top of the oil ring b. beneath the oil ring c. on the same position with the oil ring d. None of the above

Question 58

Increasing the engine clearance volume will _____________. a. increase the compression ratio b. decrease the compression ratio c. have the same compression ratio d. None of the above

Question 59

The classes of risks in agriculture results from: a. Human factors b. Statements b, and c c. Liquidity d. Natural factors

Question 60

A machine that cuts standing crop, conveys the cut crop to one side, and lays them down in an orderly manner is called: a. sickle b. reaper-windrower c. reaper-binder d. stripper

Question 61

The Japanese combine is characterized as: a. low power & hold-on feeding b. low power & throw-in feeding c. high power & hold-on feeding d. high power & throw-in feeding

Question 62

The time required for savings or sales to offset first costs, without regard for the time value of money is called a. discounted payback period b. capital recovery period c. return on investment period d. simple payback period

Question 63

This fuel is obtained by partial combustion of carbonaceous substances, like coal, wood, charcoal, sawdust, or similar materials, in an atmosphere of air and steam. It is a mixture of carbon monoxide, hydrogen, methane, nitrogen and carbon dioxide. a. LPG b. natural gas c. producer gas d. biogas

Question 64

The sequence by which the cylinder delivers the power stroke. a. Ignition b. Firing order c. Flash point d. None of the above