E Flashcards
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
c. clockwise
_____ refers to the cost of the best foregone alternative
a. sunk cost
b. opportunity cost
c. investment cost
d. depreciation cost
b. opportunity cost
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
a. True
When demand exceeds supply, there is
a. surplus
b. over-production
c. shortage
d. glut
c. shortage
The fundamental _____ equation is given as “Assets = Liabilities +
Owner’s Equity.”
a. accounting
b. present economy
c. overhead
d. time value
a. accounting
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
c. 14.75% compounded weekly
Which is the oldest form of direct or indirect solar energy?
a. Photovoltaic
b. Ocean thermal energy conversion
c. Flat-plate collectors
d. HydropoweR
d. HydropoweR
. 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
d. methane and nutrient rich sludge
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
c. using solar energy to release electrons from one layer of the cells
to migrate to another layer, thereby setting up an electric current
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
c. also called the power tower, and has been taken out of service due
to the costs of upkeep
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
a. alcohol
The process of producing both electricity and capturing waste heat is
called
a. active heat absorption
b. regeneration
c. cogeneration
d. passive heat absorption
c. cogeneration
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
d. catalytic converter
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
c. volumetric efficiency
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
d. propane
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
a. Savonious
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
d. Statements a and c
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
b. 15:1
Among the following statements, which demonstrates efficiency in
operations?
70
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.
d. Statements a and c.
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
b. Farm Management
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
d. Statements a, c, d
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
b. increased water surface runoff
Soil cut, lifted, inverted and thrown to one side of the blow bottom is
termed:
a. furrow
b. furrowslice
c. backfurrow
d. Deadfurrow
b. furrowslice
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
b. horizontal suction
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
b. 42 – 45 degrees
In the equation C =SWEff/10
, C is capacity expresses in:
a. m2/h
b. m2/day
c. ha/h
d. ha/day
c. ha/h
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
a. 2-wheel tractor for wetland op.
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
a. sort the seeds
The horizontal seed plate is used for:
a. row-crop drill planter
b. hill-drop planter
c. solid drill planter
d. broadcaster
b. hill-drop planter
In the equation for horsepower, Hp =QxH/3960xEff
, Q is pump output in:
a. gallons
b. gpm
c. liters
d. lps
b. gpm
Method of pest control not considered engineering control is:
a. chemical control
b. biological control
c. mechanical control
d. a and b
b. biological control
Which of the following is not a typical example of a small singlecylinder engine?
a. air-cooled gasoline engine
b. water-cooled gasoline engine
c. air-cooled diesel engine
d. water-cooled diesel engine
b. water-cooled gasoline engine
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
b. Manual harvesting and mechanical threshin
Average harvesting losses of rice at maturity date is 3.35 %, but two
weeks after maturity date this will increase to:
a. 5.63%
b. 8.64%
c. 40.70%
d. 60.46%
b. 8.64%
The adjustable orifice with agitator is used for:
a. row-crop drill planter
b. hill-drop planter
c. broadcaster
d. transplanter
a. row-crop drill planter
Parameter not required in the calibration of a planter is:
a. row spacing
b. ave. seed emergence
c. forward speed
d. groundwheel diameter
c. forward speed
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
d. all of the above
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
a. the larger the droplet size
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
a. lower elevation than pt. of delivery
Which of the following is not part of a force pump?
a. inlet valve
b. piston
c. plunger
d. discharge valve
b. piston
Which of the following countries follow the mechanization model of low
land area to farmer ratio?
a. Thailand
b. Philippines
c. Malaysia
d. Indonesia
b. Philippines
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
a. low first cost – high operating cost
It is the ratio of the volume of distilled water to the volume of
chemically pure, concentrated sulfuric acid in a lead-acid cell.
a. 3:1
b. 4:1
c. 5:2
d. 1:2
c. 5:2
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
b. low first cost – low operating cost
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
b. Link point
The person responsible for helping the organization achieve its goal is
called_______.
a. Planner
b. Leader
c. Organizer
d. Manager
d. Manager
