EXAM J

Question 1

Percentage work done in pulling an average plow.
a. 50 %
b. 18 %
c. 30 %
d. None of the above

Question 2

Percentage work of plow used in cutting furrow slice.
a. 43 %
b. 58 %
c. 24 %
d. None of the above

Question 3

One of the two times in a year when the sun is farthest from the equator.
a. Equinox
b. eclipse
c. solstice
d. azimuth

Question 4

A point in which all the horizontal and vertical forces in the plow
meets.
a. Side draft
b. Center of resistance
c. Center of gravity
d. None of the above

Question 5

Drawbar horsepower is a factor of:
a. Force exerted by plow
b. Speed of plow
c. All of the above
d. None of the above

Question 6

A two-wheeled and hand-operated tractor used primarily as a substitute
for draft animals.
a. Power tiller
b. Reaper
c. Seeder
d. None of the above

Question 7

Attachment to a tractor rear wheel to increase traction.
a. Ballast
b. Cagewheel
c. Stirring wheel
d. None of the above

Question 8

Tractor part that controls the direction of the travel of the machine.
a. Rear wheel
b. Front wheel
c. Stirring wheel
d. None of the above

Question 9

A tractor device which automatically raises or lowers the implement in
operation to maintain a given draft
a. Automatic draft control
b. Automatic position control
c. 3-point linkage
d. None of the above

Question 10

The inherent characteristics of tractors to maintain or to produce
increased drawbar pull even if the speed is reduced.
a. Lugging ability
b. Mechanical efficiency
c. Coefficient traction
d. None of the above

Question 11

The lower PTO speed of standard four-wheel tractor is.
a. 540 rpm
b. 450 rpm
c. 640 rpm
d. None of the above

Question 12

It is the special arrangement of gears to permit driving member to rotate
slower or faster than the other and permit operation of driving wheels at
different speed for easy turn.
a. Spur gear
b. Planetary gear
c. Differential
d. None of the above

Question 13

It is a gear reduction of the tractor located in the power train between
the differential and the driving wheel and transmits power of low speed
and large tongue to the rear axles and wheels.
a. Differential
b. Universal joint
c. Final drive
d. None of the above

Question 14

Standard power-take-off speed of a tractor.
a. 100 rpm
b. 540 rpm
c. 1200 rpm
d. None of the above

Question 15

Standard number of spline for PTO shaft.
a. 6 spline
b. 21 spline
c. 20 spline
d. All of the above

Question 16

Standard shaft diameter of PTO shaft.
a. 35 mm
b. 45 mm
c. 50 mm
d. Two of the above

Question 17

If farm tractor is rated at 80 horsepower, its metric equivalent is
a. 75 kw
b. 60 kw
c. 80 kw
d. None of the above

Question 18

The heat energy content of coconut shell charcoal is 14223 BTU/lb. How
many kilo calories are there in 10 kilos of coconut shell charcoal?
a. 78, 852.3 Kcal
b. 68, 852.3 Kcal
c. 87, 852.3 Kcal
d. None of the above

Question 19

The burning efficiency of rice hull furnaces is between
a. 70-80 %
b. 80-90 %
c. 90 and less than 100 %
d. All of the above

Question 20

The thermal efficiency of rice hull furnaces is between
a. 40-70 %
b. 70-90 %
c. 10-40 %
d. All of the above

Question 21

It is an indicator of the amount of fuel in a furnace that is converted
into ash.
a. Burning efficiency
b. Thermal efficiency
c. Heat utilization efficiency
d. None of the above

Question 22

Investment A costs P10,000 today and pays back P11,500 two years from now.
Investment B costs P8,000 today and pays back P4,500 each year for two years. If an interest rate of 5% is used, what Investment decision will you make and why?
a. Choose investment A because it provides a net present value that is P128 more than B.
b. Choose investment B because it provides a net present value that is P128 more than A.
c. Choose investment A because it provides a net present value that is P64 more than B.
d. Choose investment B because it provides a net present value that is P64 more than A.

Question 23

The ideal air-fuel ratio for using kerosene as an engine fuel is :
a. 10:1
b. 15:1
c. 13:1
d. 12:1

Question 24

The act regulating the practice of agricultural engineering in the
Philippines.
a. Republic Act No. 8559
b. Republic Act No. 9513
c. Republic Act No. 8749
d. None of the above

Question 25

The Renewable Act of 2008. a. Republic Act No. 8559 b. Republic Act No. 9513 c. Republic Act No. 8749 d. None of the above

Question 26

Which of the following statements is true in accordance with the Republic Act 8749 (Air Pollution Control Policy)? a. It is allowed to import, manufacture, sell, etc. leaded gasoline in the Philippines. b. It is allowed to import, sell, use, etc. engine or its components that uses leaded gasoline. c. It is not allowed to manufacture, sell, import, etc. leaded gasoline or engine and its components in the Philippines. d. None of the above

Question 27

PAES 101:2000 refers to: a. General safety in agricultural machinery b. Operator’s manual content and presentation c. Method of sampling d. All of the above

Question 28

The substance that is added to the tractor for the purpose of changing traction and stability. a. Ballast b. Cage wheel c. Plow d. Hydraulic lift

Question 29

The center of gravity of a standard two-wheel-drive tractor is located ____________. a. at the mid center of the tractor b. 1/3 of the wheel base ahead of the rear wheel axle of the tractor c. near the front axle wheel of the tractor d. None of the above

Question 30

It is a large domesticated four-footed animal that is used for power in agriculture? a. Poultry and Livestock animal b. Draft animal c. Dairy animal d. None of the above

Question 31

What is the approximate pull of a carabao whose weight is 1000 kilogram? a. 100 kg b. 150 kg c. 200 kg d. None of the above

Question 32

Open-fire stove has a thermal efficiency of ___. a. 3-11% b. 11-20% c. 20-30% d. All of the above

Question 33

The recommended angle for the inclined metal grates on the step-grate type stove. a. 45-60 deg b. 30-40 deg c. 60-80 deg d. None of the above

Question 34

Using biogas as fuel for engine can replace ___ of diesel fuel. a.60% b.80% c.100% d. None of the above

Question 34

The type of steam boiler commonly used in food industry. a. Fire-tube boiler b. Water-tube boiler c. Power boiler d. None of the above

Question 35

What is the required airflow to gasify rice husk in a gasifier that consumes 40 kg per hour of fuel? Consider an equivalence ratio of 0.3. a. 56 kg of air per hr b. 70 kg of air per hr c. 86 kg of air per hour d. None of the above

Question 36

A central part of a plow where the share, moldboard, and landside are attached. a. Frame b. Frog c. Shank d. None of the above

Question 37

It is the traverse distance between two adjacent discs. a. Disk distance b. Disk clearance c. Disk spacing d. None of the above

Question 38

Metals high in weldability are usually high in __________ . a. Fusibility b. Malleability c. Ductility d. All of the above

Question 39

Determine the bore of an engine if its clearance volume is 7.18 cc, compression ratio is 8:1 and stroke is 4 cm. a. 2 cm b. 4 cm c. 6 cm d. 8 cm

Question 40

Which of the following is not an example of fractional-horsepower electric motor? a. ¼ hp b. 1.0 hp c. 1 ½ hp d. b and c

Question 41

Type of power transmission system where the center-to-center distance between shafts is dictated by the diameters of the members. a. direct coupling b. chain and sprocket c. belt and pulley d. gears

Question 42

Theoretically, the intake valve: a. opens at BDC/closes at BDC b. opens at TDC/closes at TDC c. opens at BDC/closes at TDC d. opens at TDC/ closes at BDC

Question 43

In a compression-ignition engine, intake is accomplished when: a. piston goes down & IV opens b. piston goes up & EV opens c. piston goes down & EV opens d. piston goes up & IV opens

Question 44

It is a special arrangement of gears so constructed and located in the transmission system of a 4-wheel tractor that permits one driving wheel to rotate slower or faster than the other and at the same time propel its share of the load. a. gear box b. differential c. clutch d. power take-off

Question 44

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

Question 45

In the equation C = SWEff/10, C is capacity expressed in: a. m2/h b. m2/day c. ha/h d. ha/day

Question 46

Floating power tillers are used in: a. Hand tractor for wetland op. b. Hand tractor for dryland op. c. 4-wheel tractor for wetland op. d. 4-wheel tractor for wetland op

Question 46

Primary tillage equipment that cuts the soil to a depth of 6 to 18 inches is called: a. moldboard plow b. subsoiler c. chisel plow d. spiral plow

Question 47

Time value of money and interest rate utilized together generate this concept which means that different sums of money at different times can be equal in economic value. a. equivalence b. equalization c. equilibrium d. equestrian

Question 48

Recommended chain and sprocket drive for tractor powered by 3.73 to 5.22 kW gasoline engine. a. ANSI chain number 50 b. ANSI chain number 60 c. ANSI chain number 70 d. All of the above

Question 49

Recommended chain and sprocket drive for tractor powered by 5.22 kW and above gasoline engine. a. ANSI chain number 50 b. ANSI chain number 60 c. ANSI chain number 70 d. All of the above

Question 50

Welding by heating and then forcing the pieces together is called ______. a. Fusion welding b. Pressure welding c. Inertia Welding d. All of the above

Question 51

The most common form of gas welding uses the gases _______ . a. Acetylene and air b. Acetylene and hydrogen c. Acetylene and oxygen d. All of the above

Question 52

Spot welding is a form of welding known as ________ . a. Flow welding b. Resistance welding c. Forge welding d. None of the above

Question 53

The metal that is melted from a pieces being joined is called the _________. a. Filler metal b. Weld metal c. Base metal d. None of the above

Question 54

A form of resistance welding used for welding sheet metal is ________. a. Arc welding b. Gas welding c. Spot Welding d. None of the above

Question 55

The size of screw driver is measured by ___________. a. the length of the blade b. its overall length c. it diameter d. None of the above

Question 56

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 57

It is an auxiliary plow-working element, mounted above the shin which deposits the upper edge of the furrow in the furrow bottom. a. Tail piece b. Thrash board c. Coulter d. None of the above

Question 58

The size of a moldboard plow is determined ________________ . a. from the wing of the share to the landside b. from tip of the moldboard to the landside c. from the top of the moldboard to the point of the share d. None of the above

Question 59

It is an auxiliary plow-working element, mounted above the shin which deposits the upper edge of the furrow in the furrow bottom. a. Tail piece b. Thrash board c. Coulter d. None of the above

Question 59

It is a set of sprinkler nozzles. a. Boom b. Sprinkler laterals c. Sprayer nozzle set d. None of the above

Question 60

The size of a moldboard plow is determined ________________. a. from the wing of the share to the landside b. from tip of the moldboard to the landside c. from the top of the moldboard to the point of the share d. None of the above

Question 61

A secondary tillage implement consisting of one or two in-line gang rollers used for crushing soil clods and compacting the soil. a. Roller tiller b. Packer c. Roller harrow d. None of the above

Question 62

A primary or secondary tillage implement used for broadcast or for strip tillage and also used as chemical incorporators prior to planting. a. Roller tiller b. Roller harrow c. Packer d. None of the above

Question 63

It is a plow consisting of a strongly constructed frame and a vertical leg drawn to subsoil and the bullet-shape attachments creates a tube like cavity acting as a drainage channel. a. Subsoiler b. Bullet plow c. Mole plow d. All of the above