EXAM N

Question 1

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

Question 2

Maximum tire inflation pressure for agricultural implement.
a. 40 psi
b. 60 psi
c. 100 psi
d. None of the above

Question 3

Twelve man-days is equivalent to the output of:
a. 3 men X 4 days
b. 6 men X 2 days
c. 12 men X 1 day
d. all of the above

Question 4

It is a structural member of an implement where tillage tool is to the
beam attached.
a. Boom
b. Shank
c. Gang
d. None of the above

Question 5

When a disk plow is set on a vertical position, the plow will
a. Penetrate
b. Will not penetrate
c. Remain in position
d. None of the above

Question 6

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

Question 7

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

Question 8

A heat treatment method to increase the hardness of steel by rapid
cooling.
a. Tempering
b. Quenching
c. Annealing
d. None of the above

Question 9

A gas-metallic arc welding which uses inert gas shielding to produce a
cleaner and sounder weld compare with conventional welding.
a. Gas welding
b. MIG welding
c. TIG welding
d. All of the above

Question 10

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

Question 11

A device suitable for cutting stainless steel plate.
a. Shear cutter
b. Plasma cutter
c. Acetylene gas cutter
d. All of the above

Question 12

Ductility which is one of the properties of metals refers to:
a. Its resistance to penetration
b. How much the material absorb impact before it breaks
c. How much the material is deformed
d. All of the above

Question 13

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

Question 14

A drive suitable for counter clockwise direction of shafts.
a. Open drive belt
b. Chain and sprocket
c. Gears
d. All of the above

Question 15

A belt transmission suitable for cross-drive system.
a. V-belt
b. Timing v-belt
c. Flat belt
d. None of the above

Question 16

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

Question 17

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

Question 18

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

Question 19

The perpendicular distance between the wing and point of the share
determines the:
a. longitudinal dimension of plow
b. transverse dimension of plow
c. diagonal dimension of plow
d. maximum dimension of plow

Question 20

Draft of plows is primarily determined by:
a. type of soil
b. speed of plowing
c. sharpness of cutting edge
d. overall adjustment of plow

Question 21

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

Question 22

A three-bottom disc plow is to be connected to a tractor, what tractor
hitch system would your recommend for the plow?
a. Drawn bar hitch type
b. Semi-mounted type
c. Direct mounted type
d. None of the above

Question 23

Type of plow developed in an effort to reduce friction in a sliding
bottom by using a rolling bottom is:
a. moldboard plow
b. disc plow
c. subsoilers
d. rototiller

Question 24

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

Question 25

In the equation C =SWEff/10, S is speed of plowing in: a. mps b. kph c. fpm d. mph

Question 26

Disc harrow consisting of four gangs of discs with two gangs in front and two gangs at the rear is called: a. single-action disc harrow b. double-action disc harrow c. off-set disc harrow c. all of the above

Question 27

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 28

Bend downward of the point of the share to make the plow penetrate the soil to the proper depth is: a. tilt angle b. disc angle c. horizontal suction d. vertical clearance

Question 29

It refers to the arrangement of soil particles in the soil layer. a. Soil texture b. Soil structure c. Soil moisture d. All of the above

Question 30

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

Question 31

In a compression-ignition engine, the fuel is introduced into the cylinder using this device. a. intake manifold b. intake valve c. TDC d. fuel injector

Question 32

The engine crankshaft provides 30 hp at 1700 rpm. What is the torque exerted? a. 100 ft-lb b. 93 nt-m c. 126 nt-meter d. 60 nt-meter

Question 33

Type of plow developed in an effort to reduce friction in a sliding bottom by using a rolling bottom is: a. moldboard plow b. disc plow c. subsoilers d. rototiller

Question 34

In the equation C = SWEff/10, S is speed of plowing in: a. mps b. kph c. fpm d. mph

Question 35

Disc harrow consisting of four gangs of discs with two gangs in front and two gangs at the rear is called: a. single-action disc harrow b. double-action disc harrow c. off-set disc harrow d. all of the above

Question 36

The adjustable orifice with agitator is used for: a. row-crop drill planter b. hill-drop planter c. broadcaster d. transplanter

Question 37

Parameter not required in the calibration of a planter is: a. row spacing b. ave. seed emergence c. forward speed d. groundwheel diameter

Question 38

Soil working part utilized by push-type weeders for dryland operation is: a. blade type b. tine type c. rotary type d. all of the above

Question 39

Which of the following statements is incorrect: The higher the pressure, a. the larger the droplet size b. the higher flow rate c. the wider the spray angle d. all of the above

Question 40

In a water pumping system, the source of water is usually at a: a. lower elevation than pt. of delivery b. equal elevation than …. c. higher elevation than …. d. a and c

Question 41

It is the undisturbed or broken side of the furrow. a. Furrow crown b. Furrow slice c. Furrow wall d. None of the above

Question 42

It refers to the relative proportion of the soil separates in a given soil. a. Soil texture b. Soil structure c. Soil moisture d. All of the above

Question 43

A 16-valve diesel engine usually have ___________ . a. a single-piston cylinders b. a six-piston cylinders c. an eight-piston cylinders d. None of the above

Question 44

The power generated from falling water. a. Hydro power b. Biomass power c. Wind power d. None of the above

Question 45

Reduction of engine speed or flow of fuel. a. Throttling b. Clutching c. Atomization d. None of the above

Question 46

A device which uses fluid power to produce mechanical force and motion. a. Governor b. Accumulator c. Actuator d. None of the above

Question 47

A turbine used for hydro system wherein pressurized water is converted to a high-speed jet by letting the water pass through a nozzle. a. Impulse turbine b. Reaction turbine c. Water wheel d. None of the above

Question 48

The power of an engine specified by the manufacturer. a. Indicated horsepower b. Brake horsepower c. Rated horsepower d. All of the above

Question 49

Solar battery is rated in terms of ___. a. dimension of the battery b. wattage c. ampere – hour d. None of the above

Question 50

Photovoltaic cells work by a. storing solar energy as electricity for long periods of time b. amplifying the energy of the sun c. using solar energy to release electrons from one layer of the cells to migrate to another layer, thereby setting up an electric current d. a and c

Question 51

When biomass is combined with a microorganisms in anaerobic conditions, the result is a. an electric current b. butane c. propane d. methane and nutrient rich sludge

Question 52

The power grid is a. regeneration b. the network of fluid-filled tubes in a roof-mounted solar water heater c. the reaction chamber inside a hydrogen-oxygen fuel cell d. the network of electrical lines that carry electricity from power plants to the customers

Question 53

The process of producing both electricity and capturing waste heat is called? a. active heat absorption b. regeneration c. cogeneration d. passive heat absorption

Question 54

Wind is moving at 4 meters per second. If the rotor area is 2 square meters, what is the wind power? a. 80 watts b. 125 watts c. 95 watts d. None of the above

Question 55

Wind pumps are suitable for high ___ operation. a. torque b. speed c. power d. None of the above

Question 56

The greater the number of blades of the wind machine, ___ the torque. a. the higher b. the lower c. the same d. None of the above

Question 57

The size of the bottom of a furrower is measured from ___. a. the distance between the plow bottoms b. the left and to the right wing of the share of the plow bottom c. the height of the share tip to the highest tip of the moldboard d. None of the above

Question 58

An implement used for seedbed preparation, weed eradication, or fallow cultivation subsequent to some form of primary tillage, equipped with steel spring shanks. a. Chisel plow b. Field cultivator c. Spring tooth harrow d. All of the above

Question 59

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

Question 60

The method of applying chemicals over the entire area to be treated. a. Basal application b. Band application c. Broadcast application d. None of the above

Question 61

The center of resistance of moldboard plow is located a. At the center of moldboard b. At the center of share c. At the intersection of moldboard and share d. None of the above