BELONIO PT. 2 Flashcards by Jumely Arendon

Vehicle designed to pull, propel, and supply power to operate machinery used in agricultural operation.
a. Agricultural Tractor
b. Automobile
c. Payloader
d. None of the above

Answer – Agricultural Tractor

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The stirring wheel of the tractor can
be found at
a. In front
b. At the rear
c. At the operator’s seat
d. None of the above

Answer – at the operator,s seat

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A 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

Answer - ballast

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Power drive that can be found at
the rear of the tractor to propel
power implements and stationary
machines.
a. Power take off drive
b. Hydraulic system
c. Differential gear
d. None of the above

Answer – Power takeoff

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Standard rpm of a tractor PTO
drive.
a. 600 rpm
b. 200 rpm
c. 540 rpm
d. None of the above

Answer – 540 rpm

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Standard number of splines on a
PTO drive.
a. 10
b. 21
c. 15
d. None of the above

Answer - 21

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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

Answer Power tiller

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

Answer - cagewheel

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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

Answer - Stirring wheel

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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

Answer – Automatic draft control

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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

Answer – Lugging ability

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

Answer – 540 rpm

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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

Answer - Differential

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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

Answer - Final drive

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

Answer - 540 rpm

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Standard number of spline for PTO
shaft.
a. 6 spline
b. 21 spline
c. 20 spline
d. All of the above
e. None of the above

Answer – All of the above

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Standard shaft diameter of PTO
shaft.
a. 35 mm
b. 45 mm
c. 50 mm
d. Two of the above
e. None of the above

Answer – Two of the above

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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

b. 60 kW

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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

Answer – 78,852.3 kCal

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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

Answer – 90 to 99%

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

Answer – 40 to 70%

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A corncob has a stoichiometric air
requirement of 5.7 kg air/kg fuel. If 3
kg of corn cob is required to be burned
per hour, how much air in m3/hr is
required for the system?
a. 3.68 m3/hr
b. 31.68 m3/hr
c. 13.68 m3/hr
d. None of the above

Answer – 13.68 m3/hr

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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

Answer : Burning efficiency

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It indicates the ratio of the amount
of heat given off by the furnace to
the system and the heat used from
the fuel.
a. Burning efficiency
b. Thermal efficiency
c. Heat utilization energy
d. None of the above

Answer - Thermal efficiency

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Which of the following is true in operating gasifier for internal combustion engine? a. Only 50 to 70 % of the diesel oil can be replaced by gas producer. b. Gasoline and diesel can be fueled with gas producer. c. The power output of gasoline engine at arbitrary rpm will decrease by 30 to 50 % when fueled with producer gas. d. All of the above

Answer - All of the above

A rice hull gasifier reactor that produces less tar during operation. a. Updraft b. Cross draft c. Down draft d. All of the above

b. Down draft

The primary gas produced during gasification. a. Methane b. Carbon Dioxide c. Carbon Monoxide d. All of the above

Answer Carbon monoxide

When a biogas contains 40 % methane and 60 % carbon dioxide, a. The biogas can be used for cooking b. The biogas can run gas refrigerator c. The biogas can be used for lighting d. None of the above

Answer – None of the above

A biogas is generated inside the a. Gas holder b. Mixing tank c. Digester d. None of the above

Answer -Digester

The feed material to water ratio for biogas generation is a. 1:0.5 to 1:1 b. 1:1 to 1:2 c. 1:2 to 1:3 d. None of the above

Answer – 1:1 to 1:2

A digester for biogas is to be designed to accommodate 30 liters of dung per day. If the feed-material-to-water ratio is 1:1 and the designed retention time is 80 days, what is the capacity of the digester? a. 4800 liters b. 5200 liters c. 6100 liters d. None of the above

Answer – 4800 liters

A solid biomass fuel burning device used for domestic cooking water heating, smoking, roasting and simmering. a. Furnace b. Cookstove c. Biomass oven d. None of the above

Answer - Cookstove

The percentage primary air requirement based on the total air for the combustion of fuel in a cookstove. a. 80 % b. 60 % c. 40 % d. None of the above

Answer – 80%

Elements necessary for combustion. a. Fire b. Air c. Fuel d. All of the above

Answer – All of the above

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

Answer – Secondary air

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

Answer - BTU

The excessive amount of tars produced in the combustion of agricultural waste is primary due to: a. Insufficiency of fuel b. Less air is used c. Too much air used d. None of the above

Answer – Less air is used

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

Answer – 3-11%

A chamber where combustion of fuel takes place. a. Damper b. Chimney c. Fire box d. None of the above

Answer – Fire box

The thermal efficiency of a cookstove can be increased by: a. Increasing the amount of fuel b. Using more air for the fuel c. Insulating the stove d. All of the above

Answer – Insulating the stove

The power output of an agriwastefired multiple-burner stove can be increased by: a. Providing large connecting tunnel for the pot holes b. Increasing the height of the chimney c. Providing damper to control the flow of passage of air d. All of the above e. None of the above

Answer – All of the above

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

Answer – 45 to 60 deg

A gas produced from agricultural waste which is odorless, tasteless, colorless and flammable. a. Biogas b. CO c. CH4 d. None of the above

Answer – Carbon monoxide

The primary gas produced during anaerobic digestion of agricultural wastes. a. CH4 & H2S b. CH4 & CO2 c. CH4 & CO d. All of the above

Answer – CH4 & CO2

C-N ratio suitable for anaerobic digestion of agriwaste. a. 10:1 to 20:1 b. 20:1 to 30:1 c. 30:1 to 40:1 d. None of the above

Answer – 30 to 40

The power output of diesel engine, when powered with gas producer at an arbitrary speed will be reduced by a. 10-20 % b. 30-50 % c. 50-70 % d. None of the above

Answer – 10-20% (diesel engine) -30-50% (gasoline engine)

The percentage amount of diesel fuel can be replaced by gas producer a. 20-40 % b. 50-70% c. 90-100% d. None of the above

Answer – 50 to 70%

Type of engine that can be fueled with producer gas. a. Gas engine b. Diesel engine c. Gasoline engine d. All of the above

Answer - All of the above

The bulk density of rice husk. a. 50-80 kg/m3 b. 100-120 kg/m3 c. 140-160 kg/m3 d. None of the above

Answer – 100 to 120 kg/m3

To minimize channel formation inside the gasifier reactor, the superficial gas velocity on the bed of the char should not exceed. a. 8-9 cm/sec b. 15-20 cm/sec c. 20-23 cm/sec d. None of the above

Answer – 8 to 9 cm/sec

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

Answer – 30 to 40% SA

A cleaning units for rice husk gasifier to remove gaseous pollutant and solid particles while cooling the gas at the same time. a. Cyclone separator b. Fabric filter c. Scrubber d. All of the above e. None of the above

Answer - Scrubber

A type of gas producer which has the ability to gasify wet fuel. a. Updraft b. Down draft c. Cross draft d. Fluidized bed

Answer - Updraft

A cleaning system is needed for gasifier when the unit is to be used for a. Direct heating b. Power generation c. Gas production d. None of the above

Answer – Power generation

The gasifcation rate of rice hull ranged from a. 90-105 kg/m2-hr b. 110-210 kg/m2-hr c. 210-240 kg/m2-hr d. None of the above

Answer – 110 to 210 kg/m2-hr

Rice hull gasifier efficiency normally ranged from a. 50-70 % b. 70-80 % c. 80-90 % d. None of the above

Answer – 50 to 70%

The caloric value of fuel is a. The amount of heat contained by the fuel per unit weight b. The heat needed to burn a certain weight of fuel c. The weight of fuel to be heated d. None of the above

Answer – The amount of heat contained by the fuel per unit weight

A type of rice husk furnace that burn the fuel while it is being spread in a circular pattern inside the combustion chamber. a. Step grate furnace b. Suspended air furnace c. Cyclone furnace d. All of the above

Answer – Cyclone furnace

The thermal efficiency of the furnace is the ratio of a. The amount of fuel used to the amount of heat generated during combustion b. The amount of heat generated during combustion to the amount of fuel used c. The amount of heat delivered to the amount of heat available in the fuel used d. None of the above

Answer - The amount of heat delivered to the amount of heat available in the fuel used

The burning temperature of most agricultural waste a. 100-200°C b. 300-400 °C c. 500-600 °C d. None of the above

Answer – 300 to 400 C

A high-cetane fueled engine uses a. Diesel as fuel and is difficult to start engine at lower temperature b. Diesel as fuel and is easy to start at lower temperature c. Gasoline fuel and is easy to start at lower temperature d. None of the above

Answer - Diesel as fuel and is easy to start at lower temperature

High viscosity engine oil is desirable to use because a. Its viscosity changes easily with a change in temperature b. Its viscosity does not change easily with a change in temperature c. Its viscosity changes even without a change in temperature d. None of the above

a. Its viscosity changes easily with a change in temperature

Engine oil having high flash and fire point indicates. a. High boiling point b. High evaporation rate c. High heating value d. All of the above

Answer - High boiling point

In order to increase the resistance of engine oil, the formation of certain acidic product that may cause corrosion of certain type of bearing the recommended additive to use is. a. Anticorrosive b. Antioxidants c. Dispersants d. All of the above

Answer - antioxcidant

An additive purposely to provide a protective film on bearing surfaces thus preventing any acid to corrode metal parts. a. Anticorrosive b. Antioxidants c. Dispersants d. All of the above

Answer - Anticorrosive

Additives to cause carbon particles in the engine to remain in suspension in oil. a. Anticorrosive b. Antioxidants c. Dispersants d. All of the above

Answer - Dispersant

The burning of portion of fuel in the combustion chamber of an engine at a rate faster than the desired. a. Knocking b. Detonation c. Misfiring d. All of the above

Answer - Detonation

A device used to measure the quantity of oil in a crankcase. a. Dipstick b. Oil gauge c. Oil stick d. None of the above

Answer - Dipstick

A device that provides a rich mixture of fuel during high load and lean mixture during under load. a. Carburetor b. Economizer c. Fuel regulator d. All of the above

Answer - Economizer

The lubrication system of an engine is basically a. To reduce wear and tear of an engine b. To act as complement of the cooling system c. To act seal between the piston and cylinder wall d. All of the above

Answer - All of the above

When a diesel engine knocks, the trouble is a. The diesel fuel ignition timing is late b. Incorrect type of spark plug c. Incorrect engine lubrication and wrong grade oil d. All of the above

Answer - The diesel fuel ignition timing is late

When a gasoline engine knocks, the problem is a. The spark timing is too far advance b. Incorrect type of spark plug c. Incorrect type of fuel d. All of the above

Answer - The spark timing is too far advance

If the engine timing is advance a. The spark plug ignites earlier than the fuel while piston is completing the compression stroke b. The spark plug ignites earlier than the fuel while the piston is at the intake stroke c. The spark ignites earlier than the fuel while moving downward immediately after the power stroke d. All of the above

Answer - The spark plug ignites earlier than the fuel while piston is completing the compression stroke

It is the act of checking, testing, measuring, repairing and adjusting the engine in order to bring it to the peak efficiency. a. Trouble shooting b. Tune-up c. Timing adjustment d. All of the above

Answer – tune up

The coefficient of traction for wheel-type tractor is highest for a. Concrete road b. Fine sand c. Sandy loam soil d. All of the above

Answer – Concrete road

The rapid explosion of mixture of fuel and air within the cylinder when ignited by spark plug is. a. Constant volume combustion b. Constant temperature combustion c. Constant pressure combustion d. All of the above

Answer - Constant volume

The relatively slow burning as the fuel is injected into a highly compressed heated air is. a. Constant volume combustion b. Constant temperature combustion c. Constant pressure combustion d. All of the above

Answer - Constant pressure combustion

The gross heating value of diesel is a. Higher than gasoline b. Higher than kerosene c. Higher than ethanol d. All of the above

Answer - Higher than ethanol

Which of the following is true in the operating gasifier for internal combustion engine? a. Only 50 to 70 % of the diesel oil can be replaced by gas producer. b. Gasoline and diesel can be fueled with gas producer. c. The power output of gasoline engine at arbitrary rpm will increase by 30 to 50 % when fueled with producer gas. d. All of the above

Answer - All of the above

An injection system used in small stationary diesel engine consisting essentially of a high pressure pump and an injection nozzle. a. Air injection system b. Solid injection system c. Automized injection system d. None of the above

Answer - Solid injection system

An engine running at a speed of 2000 rpm is classified as a. Low speed engine b. Medium speed engine c. High speed engine d. None of the above

Answer – High speed

It is used to seal engine components which are bolted to the sub-frame, the cylinder block, and the crankcase. a. Oil b. Grease c. Gasket d. None of the above

Answer – Gasket

An air cooled engine is basically equipped with a. Pump b. Fan c. Fan and pump d. None of the above

Answer - Fan

The primary gas produced during gasification. a. Methane b. Carbon dioxide c. Carbon monoxide d. All of the above

Answer – Carbon monoxide

When an engine is diesel operated, a. The moisture of air and fuel is taken in the cylinder b. The fuel is compressed into the combustion engine c. Air fuel ratio is not constant as the quantity of air drawn into the cylinder is not always the same d. All of the above

Answer - Air fuel ratio is not constant as the quantity of air drawn into the cylinder is not alway

When operating light equipment, it is recommended to use. a. Four stroke gasoline engine b. Two stroke gasoline engine c. Four stroke diesel engine d. All of the above

Answer - Two stroke gasoline engine

A four-stroke-cycle engine is advantageous to use than twostroke-cycle engine for the reason that a. It is easier to start the engine b. Has regular intake and exhaust valves c. Easy to lubricate d. All of the above

Answer – All of the above

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

Answer – impulse turbine

A turbine for hydro system which runs completely filled with water. a. Impulse turbine b. Reaction turbine c. Water wheel d. None of the above

Answer – Reaction Turbine

A component part of solar electric system that converts sunlight to electricity a. PV panel b. Solar cell c. Solar module d. All of the above

Answer – All of the above

Solar battery is rated in terms of a. Dimension of the battery b. Wattage c. Ampere – hour d. None of the above

Answer – Amp-hour

The capacity require for 12-volt solar panel system is 73.6 watt-hour. What is the ampere-hour capacity of the battery needed for the system? a. 6.13 ampere-hour b. 4.05 ampere-hour c. 7.23 ampere-hour d. None of the above

Answer - 6.13 ampere-hour

The act of analyzing, testing, and measuring the engine to remedy the cause and trouble. a. Servicing b. Tune-up c. Trouble shooting d. All of the above

Answer - Trouble shooting

When strength is provided beyond what is needed as an extra margin of insurance against parts failure. a. Factor of ignorance b. Factor of safety c. Reliability d. None of the above

Answer – Factor of safety

An engine running without load is in. a. Optimum running condition b. Low running condition c. Idle condition d. None of the above

Answer – idle condition

Two engines are rated 1 hp and the other is 1 ps. Which of the following statement is true. a. 1 hp engine is stronger than 1 ps engine b. Two engines are the same in strength c. 1 ps engine is stronger than 1 hp engine d. None of the above statement is true

Answer - 1 ps engine is stronger than 1 hp engine

Japanese engines are usually rated in terms of a. Horsepower b. Pferde starke c. Watts d. All of the above

Answer Pferde starke

If the rotor of the windmill originally at 2 meters is to be reduced to 1 meter, the power output of the machine will be reduced by a. Two times b. Three times c. Four times d. None of the above

Answer – Four times

Wind flows on a 2-m diameter rotor at a rate of 2 m/s. Suddenly, the wind flows at 4 m/s, what would be the power output of the windmill? a. 4 times b. 6 times c. 8 times d. None of the above

Answer – 8 times

Small gasoline engine basically has a compression ratio of a. 6:1 b. 10:1 c. 3:1 d. None of the above

Answer- 6:1