EXAM H

Question 1

Which does not describe a corporation?
a. It is subject to fewer legal restrictions than other types of
business organization.
b. Its activities are limited to those stated in its charter.
c. It enjoys perpetual life.
d. Ownership is readily transferred.

Question 2

This is the most common cause of short life of lead acid battery. It
results when a cell or battery is permitted to remain in a discharged
condition for some length of time such that the lead sulfate hardens and
cannot be readily converted to its former state.
a. Carburetion
b. deposition
c. colloid formation
d. sulfation

Question 3

In a spark ignition system, it prevents arcing in the breaker point and
helps intensify the spark in the spark plug.
a. distributor
b. condenser
c. ignition coil
d. secondary winding

Question 4

It is the ratio of the horsepower output of an engine to the fuel
horsepower.
a. mechanical efficiency
b. thermal efficiency
c. power efficiency
d. volumetric efficiency

Question 5

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 6

It is a device used to reduce the toxicity of emissions from an internal
combustion engine. It works by providing an environment for a chemical
reaction wherein toxic combustion by-products are converted to less-toxic
substances.
a. muffler
b. header
c. turbocharger
d. catalytic converter

Question 7

Which of the following agencies is not based in a university?
a. AMTEC
b. PhilSCAT
c. AMDP
d. PCARRD

Question 8

The following are considered discounted measures of project worth:
a. payback period
b. internal rate of return
c. benefit-cost ratio
d. net present value

Question 9

General-purpose tillage involves cutting and pulverizing the soil to a
depth of:
a. up to 3 inches
b. up to 6 inches
c. up to 12 inches
d. up to 18 inches

Question 10

Width of cut of the disc plow is influenced by:
a. disc diameter
b. depth of cut
c. disc angle
d. all of the above

Question 11

In the equation C = SWEff/10, W is width of cut expressed in: (code 16)
a. ft.
b. m
c. km
d. mile

Question 12

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 13

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

Question 14

Optimum axle speed for puddling-type floating tiller.
a. 100 rpm
b. 250 rpm
c. 340 rpm
d. None of the above

Question 15

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

Question 16

Running resistance of a tractor includes
a. Rolling resistance
b. Air and acceleration resistance
c. Slope resistance
d. All of the above

Question 16

The sum of all resistance acting on the tractor.
a. Coefficient traction
b. Running resistance
c. Rolling resistance
d. None of the above

Question 17

Weight transfer means
a. To move paddy from field to the granary
b. To transfer torrens title from the landlord to the tenant
c. To shift implements weight to the tractor’s drive wheel in order to
improve traction
d. None of the above

Question 18

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

Question 19

An international testing center for tractor.
a. International Rice Research Institute
b. International Farm Machinery Institute
c. NEBRASKA
d. None of the above

Question 20

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

Question 21

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

Question 22

It is a gripping device between power source.
a. Clutch
b. Chain
c. Springs
d. None of the above

Question 23

Machine element that transmit torque and power.
a. Pulley
b. Bearing
c. Shaft
d. None of the above

Question 24

It is used to fasten shaft pulleys and hubs of gears together. a. Bolt b. Springs c. Keys d. None of the above

Question 25

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

Question 26

During seeding and planting, which of the crop production activities is simultaneously in operation? a. Weeding b. Irrigating c. Fertilizing d. Spraying

Question 26

Which of the following statement is true? a. The velocity of the flat belt of a reaper is faster than its forward velocity. b. The velocity of the flat belt of a reaper is slower than its forward velocity. c. The velocity of the flat belt of a reaper is the same with the forward velocity. d. None of the above

Question 26

A drum seeder is highly suitable for rice a seed that was _______________. a. freshly stored before planting b. pre-germinated before planting c. milled before planting d. All of the above

Question 27

The metering device of a seeder basically is used to uniformly feed the seed into the _______________. a. covering device b. seed tube c. furrow opener d. None of the above

Question 28

Part of a rice transplanter that places the seedlings into the prepared paddy field. a. Feed tray b. Picker c. Handle d. None of the above

Question 29

If you are an engineer to mechanize lowland rice farm that is usually flooded, what primary tillage implement would you recommend? a. Spiral-type tiller b. Disc-type tiller c. Puddling-type tiller d. None of the above

Question 30

Which of the following primary tillage equipment for small rice farm with higher field capacity? a. Disc plow b. Spiral plow c. Puddling-type tiller d. Comb harrow

Question 31

Select a farm operation that can only be done with the use of a machine: a. plowing b. spraying c. harvesting d. threshing

Question 32

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

Question 33

An engine valve arrangement wherein the intake and exhaust valves are located in the cylinder head. a. I - head arrangement b. L- head arrangement c. X- head arrangement d. None of the above

Question 34

Type of soil working parts utilized by push-type weeders for wetland operation: a. blade type b. tine type c. rotary type d. all of the above

Question 35

Which of the following is not measured in calibrating a sprayer? a. nozzle discharge b. effective working width c. walking speed d. application rate

Question 36

Which of the following does not belong to the group of positive displacement pumps? a. lift pump b. force pump c. rotary pump d. propeller pump

Question 37

According to the National Irrigation Administration (NIA), water requirement for rice production is: a. 5 mm/day b. 10 mm/day c. 15 mm/day d. 20 mm/day

Question 38

In what type of engine is the fuel introduced into the cylinder at the end of compression? a. 4-stroke-spark-ignition engine b. 4-stroke-compression-ignition c. 2-stroke-spark-ignition d. a and b

Question 39

Standard tractors are 4-wheel tractors with power rating of: a. 32 to 49 hp b. 50 to 69 hp c. 70 to 89 hp d. all of the above

Question 40

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

Question 41

The air required for complete combustion of combustible gases. a. Stoichiometric air b. Primary air c. Secondary air d. All of the above

Question 42

The amount of heat required to raise the temperature of one pound water by one degree Fahrenheit. a. kCal b. BTU c. Joule d. None of the above

Question 43

The air requirement for gasification of agricultural wastes ranged from ___. a. 10-20 % of stoichiometric air (SA) b. 20-30 % of SA c. 30-40 % of SA d. None of the above

Question 44

The burning temperature of most agricultural wastes. a. - 100-200 deg celcius b. - 300-400 c. - 500-600 d. None of the above

Question 45

The specific gravity of gasoline is at the range of ___. a. 0.67 to 0.76 b. 0.79 to 0.85 c. 0.85 to 0.91 d. All of the above

Question 46

At the downward stroke of the two-stroke cycle engine, which of the events are taking place? a. Power & intake, exhaust b. Compression c. Power & exhaust d. None of the above

Question 47

At the downward stroke of the two-stroke cycle engine, which of the events are taking place? a. Power & intake, exhaust b. Compression c. Power & exhaust d. None of the above

Question 48

The amount of power available in human for useful work. a. 0.5 hp b. 0.25 hp c. 0.1 hp d. None of the above

Question 49

The minimum energy requirement of human. a.1,250 cal/day b.1,500 cal/day c.1,750 cal/day d.2,000 cal/day

Question 50

It is the radius of the circle within which the implement can make its shortest run in the field. a. Radius of run b. Minimum turning distance c. Turning radius d. None of the above

Question 51

Which of the following statement is true? a. Field efficiency decreases with the increase in theoretical field capacity. b. Field efficiency decreases with the increase in effective field capacity. c. Field efficiency does not increase with the increase in theoretical field capacity. d. None of the above

Question 52

It is the travel of the machine across or around a field from a selected starting point adjacent to the first. a. Round b. Trip c. Operation d. None of the above

Question 53

One half of the travel from one end of the field to the other. a. Round b. Trip c. Operation d. None of the above

Question 53

It describes the practice of dividing the field into sub-areas and operating on these sub-areas individually. a. Operating in lands b. Field operation c. Field division d. None of the above

Question 54

__________ unprocessed area that provides room for making turns. a. Headland b. Turn strips c. Turning radius d. None of the above

Question 55

Pattern efficiency of headland pattern in a square field. a. 93.0% b. 95.7% c. 84.0% d. None of the above

Question 56

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? a. connecting rod b. governor system c. flywheel d. accelerator

Question 57

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

Question 58

The power required in pulling an implement. a. Wheel power b. Brake power c. Drawbar power d. None of the above

Question 59

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. Seeding and planting equipment c. Secondary tillage equipment d. None of the above

Question 60

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

Question 61

Tillage implements which shatters or loosen the soil without complete burial or mixing of surface materials. a. Chisel plow b. Lister plow c. Disk plow d. None of the above

Question 62

Mechanical manipulation of soil for any purpose. a. Land grading b. Tillage c. Earth moving d. None of the above

Question 63

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

Question 64

The pushing or rolling of soil by a steeply inclined blade. a. Bulldozing b. Chiselling c. Subsoiling d. None of the above

Question 65

A secondary tillage operation which pulverizes, smoothens, and packs the soil during seeded preparation and also controls weeds. a. Harrowing b. Listing c. Chiselling d. None of the above

Question 66

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