EXAM E

Question 1

If it is desired to reverse the four-wheel tractor to the right, the
steering wheel must be turned.
a. backwards
b. counterclockwise
c. clockwise
d. forward

Question 2

The flywheel is the part of the engine which absorbs the power from the
crankshaft during the idle strokes and returns it during the power stroke.
a. True
b. False
c. Neither
d. None of the above

Question 2

At the given velocity, how long will it take to plow a rectangular field W
meters wide and L meters length.
a. lw/10VW
b. Lw/10vW
c. lW/10Vw
d. LW/10vw

Question 2

When demand exceeds supply, there is
a. surplus
b. over-production
c. shortage
d. glut

Question 2

_____ refers to the cost of the best foregone alternative
a. sunk cost
b. opportunity cost
c. investment cost
d. depreciation cost

Question 2

The fundamental _____ equation is given as “Assets = Liabilities +
Owner’s Equity.”
a. accounting
b. present economy
c. overhead
d. time value

Question 2

Which is the oldest form of direct or indirect solar energy?

a. Photovoltaic
b. Ocean thermal energy conversion
c. Flat-plate collectors
d. Hydropower

Question 2

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 3

Which will provide the largest annual effective rate?
a. 14% per year compounded quarterly
b. 15% compounded monthly
c. 14.75% compounded weekly
d. 15.25% compounded semi-annually

Question 3

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

Question 3

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 3

The power grid is
a. the network of fluid-filled tubes in a roof-mounted solar water
heater
b. the reaction chamber inside a hydrogen-oxygen fuel cell
c. also called the power tower, and has been taken out of service due
to the costs of upkeep
d. the network of electrical lines that carry electricity from power
plants to the customers

Question 3

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 3

Among the fuels that belong to the paraffin group, this has three carbon
atoms in its molecular structure. It is the main component of LPG.
a. pentane
b. Ethane
c. Butane
d. propane

Question 3

Cocomethyl ester, also known as biodiesel, is a non-toxic, eco-friendly
fuel having similar properties as diesel fuel. The process of
transesterifying raw vegetable oil into cocomethyl ester requires the use of:
a. alcohol
b. oxygen
c. hydrogen
d. carbon dioxide

Question 4

It is the ratio of the actual weight of fuel inducted by the engine
during the intake stroke to the theoretical weight of air that should have
been inducted by filling the piston displacement volume with air at
atmospheric temperature and pressure.
a. volumetric capacity
d. volumetric measure
b. volumetric parameter
c. volumetric efficiency

Question 4

This vertical axis windmill has a very low tip speed ratio and power
coefficient of less than 0.2. The rotor is usually constructed using a
cylindrical tank cut axially into two and installed vertically face to face
at an offset position.
a. Savonious
b. Cretan
c. Darrieus
d. Multibladed

Question 5

Which of the following statement/s is/are true?
a. A person must be efficient to be effective.
b. A person may be effective without being efficient.
c. A person may be efficient without being effective.
d. Statements a and c

Question 6

Among the following statements, which demonstrates efficiency in
operations?
a. Reducing the number of workers while maintaining the same target
yield.
b. Increasing the target yield and maintaining the number of workers.
c. Reducing the number of workers and reducing the target yield.
d. Statements a and c.

Question 7

The study of the ways and means of organizing land, labor and capital and
the application of technical knowledge and skill in order that the farm may
be made to yield the maximum net returns is called _______.
a. Management
b. Farm Management
c. Economics
d. Scientific Method

Question 8

A farmer’s success is dependent on several factors, of which are:
a. Proper selection of farm type and size based on the available
capital, labor and other resources.
b. Age, strength, maturity and his ability to communicate well in
English.
c. Giving due importance to land and water conservation and record
keeping of all transactions of the farm.
d. Statements a, c, d.

Question 8

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 9

Soil cut, lifted, inverted and thrown to one side of the blow bottom is
termed:
a. furrow
b. furrowslice
c. backfurrow
d. Deadfurrow

Question 10

Bend sideward of the point of the share to make the plow cut the proper
width is:
a. vertical clearance
b. horizontal suction
c. disc angle
d. tilt angle

Question 11

The angle the disc of a disc plow makes with the direction of travel to make it cut the proper width and allow it to rotate when moving forward is: a. 15 – 25 degrees b. 42 – 45 degrees c. 55 – 60 degrees d. 30 – 36 degrees

Question 12

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

Question 13

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 13

Floating power tillers are used in: a. 2-wheel tractor for wetland op. b. 2-wheel tractor for dryland op. c. 4-wheel tractor for wetland op. d. 4-wheel tractor for wetland op

Question 14

The horizontal seed plate is used for: a. row-crop drill planter b. hill-drop planter c. solid drill planter d. broadcaster

Question 15

Method of pest control not considered engineering control is: a. chemical control b. biological control c. mechanical control d. a and b

Question 16

In the equation for horsepower, Hp = QxH/3960xEff, Q is pump output in a. gallons b. gpm c. liters d. lps

Question 17

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 18

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 19

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

Question 20

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 20

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

Question 21

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 22

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 23

Which of the following is not part of a force pump? a. inlet valve b. piston c. plunger d. discharge valve

Question 24

Which of the following countries follow the mechanization model of low land area to farmer ratio? a. Thailand b. Philippines c. Malaysia d. Indonesia

Question 24

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 25

The three-phase electric motor 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 26

It is an articulated connection between a link and the tractor. a. Hitch point b. Link point c. Implement point d. All of the above

Question 27

The person responsible for helping the organization achieve its goal is called_______. a. Planner b. Leader c. Organizer d. Manager