問題一覧
1
Which of the following agencies does not belong to the Department of Agriculture?
AMMDA
2
In a water pumping system, the source of water is usually at as
lower elevation than pt. of delivery
3
In the equation for horsepower, Hp=Q×H/3960×Eff,H is total head in
ft
4
The power unit for driving centrifugal pumps for household use is
usually:
Electric motor
5
According to NIA ,water requirement for rice production is
10 mm/day
6
The traditional system of harvesting and threshing of rice is
manual harvesting and threshing
7
Among the factors affecting the choice of harvesting and threshing system, which one is the major factor?
timeliness of operation
8
The threshing action most commonly employed by a mechanical thresher for rice is:
impact action
9
The threshing action where grains are detached from their panicles when the straw is pulled through a “V” shaped configuration is called:
stripping action
10
An internal combustion engine that produces two power stroke in two revolution of the crankshaft.
Two-stroke cycle engine
11
A fuel commonly used for external combustion engine.
Biomass
12
Fuel used for constant volume cycle internal combustion engine.
Gasoline
13
Which of the following engine requires frequent maintenance?
Spark-ignition engine
14
The direction of a crawler-type tractor can be maneuvered by __________
stopping one of its wheels
15
A crawler-type tractor of the same weight provides __________ soil compacting pressure than wheel type tractor.
lower
16
This is the most common cause of short life of lead acid battery. It results when a cell or battery is permitted to remain in a discharged condition for some length of time such that the lead sulfate hardens and cannot be readily converted to its former state.
sulfation
17
Engines are not normally used for:
1-ton rice mills
18
Type of engine commonly used for brush cutters.
2-stroke-spark-ignition
19
Type of 2-wheel tractor equipped with a single-bottom moldboard plow and comb-tooth harrow.
traction type
20
Bend sideward of the point of the share to make the plow cut the proper width is:
horizontal suction
21
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:
42 – 45 degrees
22
Primary tillage involves cutting the soil to a depth of:
6 to 36 inches
23
Which of the following do belong to crop maintenance equipment?
Plow and harrow
24
At the downward stroke of a two-stroke cycle gasoline engine, which of the following events takes place?
Power, Exhaust, and Intake
25
Secondary tillage involves pulverizing the soil to a depth of:
3 to 6 inches
26
Part of the moldboard plow bottom that receives the furrowslice, lifts, inverts and throws it to one side is called:
moldboard
27
Width of cut of the disc plow is influenced by:
all of the above
28
Part of a planter that is always present in all planters regardless of type and cropping system:
metering device
29
Twelve man-days is equivalent to:
four men working for three days
30
Engine piston displacement will increase if the ____________.
All of the above
31
This fuel is made by partial combustion of carbonaceous substances like coal, wood, charcoal, sawdust and other similar materials in an atmosphere of air and steam. It is a mixture of carbon monoxide, hydrogen, methane, nitrogen and carbon dioxide.
producer gas
32
To minimize channel formation inside the gasifier reactor, the superficial gas velocity on the bed of the char should not exceed.
8-9 cm/sec
33
The air requirement for gasification of agricultural waste ranged from
30-40 % of SA
34
The speed of the engine is automatically regulated by ______
Governor
35
A type of engine that completes power stroke in one revolution of the crankshaft.
Two-stroke cycle
36
Number of pistons for 6 cylinder four stroke gasoline engine.
6
37
One horsepower can generate heat energy equal to
2545 BTU/hr
38
Amount of power that the manufacturer specified for an engine.
Rated horsepower
39
A device which uses fluid power to produce mechanical force and motion.
Actuator
40
Part of engine that which slides up and down the cylinder and transmits power to the crankshaft.
Piston
41
A device that is used to actuate the throttle of an engine to increase its speed.
Accelerator
42
Distance of movement piston from the top dead to the bottom dead center.
Stroke
43
Reduction of engine speed or flow of fuel
Throttling
44
A device that permits the flow of fuel and of burned gases in one direction only.
Check valve
45
An internal combustion engine that produces power in one revolution of the crankshaft.
Two stroke cycle engine
46
A device that provides ignition to a gasoline engine.
Spark plug
47
During the power stroke, which of the following valve is open?
None of the above
48
Number of spark plugs for 6 cylinder diesel engine
none of the above
49
Usable power delivered by the engine
Brake horsepower
50
A device that meters the fuel air and mixes them into harmonious mixture before the mixture enters the combustion chamber of an engine.
Carburetor
51
At the downward stroke of two-stroke cycle, which of the events are taking place.
None of the above
52
The volume displaced by a piston in making upward and downward stroke.
Piston displacement volume
53
One pferde starke (ps) is equal to
All of the above
54
A hand operated tractor which is suitable for both primary and secondary tillage used when field has been soaked for at least half a day to soften the soil.
Puddling-type floating tiller
55
PAES recommended diameter of hole in the drawbar for four-wheel agricultural tractor.
33 mm
56
Front tread of four-wheel agricultural tractor is usually adjusted by ______.
changing bolt position of the front axle
57
The rear wheel for two-wheel and four wheel drive tractors are adjusted by _____.
inverting the wheel disc
58
Types of brake system for agricultural tractors:
All of the above
59
Acceptable level wheel slip for two-wheel drive tractor on a firm soil.
7 - 11%
60
Acceptable level wheel slip for four-wheel drive tractor on a tilled or soft soil.
8 - 13%
61
It is a single or pair of wheels with radially mounted tilling blades attached to a common shaft or axle of a puddling-type floating tiller.
Tilling wheel
62
Common designs of floatation structure for puddling-type floating tiller.
All of the above
63
Another term for puddling-type floating tiller
Float-assist tiller
64
What type of fastener is used to fasten a metal part to wood?
Carriage bolt
65
A type of disk harrow that is not directly parallel in position with the tractor during operation.
Offset disk harrow
66
The power that is required in pulling an implement.
Drawbar horsepower
67
The power that is required in driving a pump shaft.
Brake horsepower
68
The power available at the engine shaft used in driving machinery.
Brake horsepower
69
Variables affecting the drawbar horsepower:
Implement pulling force and speed
70
. PS is a German acronym for ________________
Pferdestarke
71
cv is a French acronym for ____________ .
Cheval-vapeur
72
pk is Dutch acronym for ____________ .
Paardekracht
73
One (1)PS is equal to _________ watts
735.49
74
A farm is planed be planted with corn at a spacing of 30 cm x 60 cm. As engineer in-charge of the mechanization program of the farm which of the following equipment would you recommend?
Row Crop Planter
75
Instrument for measuring the speed of a shaft
Tachometer
76
Instrument for measuring low-pressure head.
Manometer
77
It is a set of concave discs.
Gang
78
Ferrous metals are metals that contain __________.
Iron
79
Which of the following is not a part of a typical lever-operated knapsack sprayer?
pressure gage
80
This scientific phenomenon is the basic principle of operation of spark ignition systems of engines. It says that a change in the magnetic flux in a conducting circuit produces current in the circuit.
electromagnetic induction
81
Draft of disc harrows increases and penetration __________ with speed
decreases
82
The maximum horizontal projection of a tool in the soil perpendicular to the line of motion.
tool width
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100問 • 10ヶ月前問題一覧
1
Which of the following agencies does not belong to the Department of Agriculture?
AMMDA
2
In a water pumping system, the source of water is usually at as
lower elevation than pt. of delivery
3
In the equation for horsepower, Hp=Q×H/3960×Eff,H is total head in
ft
4
The power unit for driving centrifugal pumps for household use is
usually:
Electric motor
5
According to NIA ,water requirement for rice production is
10 mm/day
6
The traditional system of harvesting and threshing of rice is
manual harvesting and threshing
7
Among the factors affecting the choice of harvesting and threshing system, which one is the major factor?
timeliness of operation
8
The threshing action most commonly employed by a mechanical thresher for rice is:
impact action
9
The threshing action where grains are detached from their panicles when the straw is pulled through a “V” shaped configuration is called:
stripping action
10
An internal combustion engine that produces two power stroke in two revolution of the crankshaft.
Two-stroke cycle engine
11
A fuel commonly used for external combustion engine.
Biomass
12
Fuel used for constant volume cycle internal combustion engine.
Gasoline
13
Which of the following engine requires frequent maintenance?
Spark-ignition engine
14
The direction of a crawler-type tractor can be maneuvered by __________
stopping one of its wheels
15
A crawler-type tractor of the same weight provides __________ soil compacting pressure than wheel type tractor.
lower
16
This is the most common cause of short life of lead acid battery. It results when a cell or battery is permitted to remain in a discharged condition for some length of time such that the lead sulfate hardens and cannot be readily converted to its former state.
sulfation
17
Engines are not normally used for:
1-ton rice mills
18
Type of engine commonly used for brush cutters.
2-stroke-spark-ignition
19
Type of 2-wheel tractor equipped with a single-bottom moldboard plow and comb-tooth harrow.
traction type
20
Bend sideward of the point of the share to make the plow cut the proper width is:
horizontal suction
21
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:
42 – 45 degrees
22
Primary tillage involves cutting the soil to a depth of:
6 to 36 inches
23
Which of the following do belong to crop maintenance equipment?
Plow and harrow
24
At the downward stroke of a two-stroke cycle gasoline engine, which of the following events takes place?
Power, Exhaust, and Intake
25
Secondary tillage involves pulverizing the soil to a depth of:
3 to 6 inches
26
Part of the moldboard plow bottom that receives the furrowslice, lifts, inverts and throws it to one side is called:
moldboard
27
Width of cut of the disc plow is influenced by:
all of the above
28
Part of a planter that is always present in all planters regardless of type and cropping system:
metering device
29
Twelve man-days is equivalent to:
four men working for three days
30
Engine piston displacement will increase if the ____________.
All of the above
31
This fuel is made by partial combustion of carbonaceous substances like coal, wood, charcoal, sawdust and other similar materials in an atmosphere of air and steam. It is a mixture of carbon monoxide, hydrogen, methane, nitrogen and carbon dioxide.
producer gas
32
To minimize channel formation inside the gasifier reactor, the superficial gas velocity on the bed of the char should not exceed.
8-9 cm/sec
33
The air requirement for gasification of agricultural waste ranged from
30-40 % of SA
34
The speed of the engine is automatically regulated by ______
Governor
35
A type of engine that completes power stroke in one revolution of the crankshaft.
Two-stroke cycle
36
Number of pistons for 6 cylinder four stroke gasoline engine.
6
37
One horsepower can generate heat energy equal to
2545 BTU/hr
38
Amount of power that the manufacturer specified for an engine.
Rated horsepower
39
A device which uses fluid power to produce mechanical force and motion.
Actuator
40
Part of engine that which slides up and down the cylinder and transmits power to the crankshaft.
Piston
41
A device that is used to actuate the throttle of an engine to increase its speed.
Accelerator
42
Distance of movement piston from the top dead to the bottom dead center.
Stroke
43
Reduction of engine speed or flow of fuel
Throttling
44
A device that permits the flow of fuel and of burned gases in one direction only.
Check valve
45
An internal combustion engine that produces power in one revolution of the crankshaft.
Two stroke cycle engine
46
A device that provides ignition to a gasoline engine.
Spark plug
47
During the power stroke, which of the following valve is open?
None of the above
48
Number of spark plugs for 6 cylinder diesel engine
none of the above
49
Usable power delivered by the engine
Brake horsepower
50
A device that meters the fuel air and mixes them into harmonious mixture before the mixture enters the combustion chamber of an engine.
Carburetor
51
At the downward stroke of two-stroke cycle, which of the events are taking place.
None of the above
52
The volume displaced by a piston in making upward and downward stroke.
Piston displacement volume
53
One pferde starke (ps) is equal to
All of the above
54
A hand operated tractor which is suitable for both primary and secondary tillage used when field has been soaked for at least half a day to soften the soil.
Puddling-type floating tiller
55
PAES recommended diameter of hole in the drawbar for four-wheel agricultural tractor.
33 mm
56
Front tread of four-wheel agricultural tractor is usually adjusted by ______.
changing bolt position of the front axle
57
The rear wheel for two-wheel and four wheel drive tractors are adjusted by _____.
inverting the wheel disc
58
Types of brake system for agricultural tractors:
All of the above
59
Acceptable level wheel slip for two-wheel drive tractor on a firm soil.
7 - 11%
60
Acceptable level wheel slip for four-wheel drive tractor on a tilled or soft soil.
8 - 13%
61
It is a single or pair of wheels with radially mounted tilling blades attached to a common shaft or axle of a puddling-type floating tiller.
Tilling wheel
62
Common designs of floatation structure for puddling-type floating tiller.
All of the above
63
Another term for puddling-type floating tiller
Float-assist tiller
64
What type of fastener is used to fasten a metal part to wood?
Carriage bolt
65
A type of disk harrow that is not directly parallel in position with the tractor during operation.
Offset disk harrow
66
The power that is required in pulling an implement.
Drawbar horsepower
67
The power that is required in driving a pump shaft.
Brake horsepower
68
The power available at the engine shaft used in driving machinery.
Brake horsepower
69
Variables affecting the drawbar horsepower:
Implement pulling force and speed
70
. PS is a German acronym for ________________
Pferdestarke
71
cv is a French acronym for ____________ .
Cheval-vapeur
72
pk is Dutch acronym for ____________ .
Paardekracht
73
One (1)PS is equal to _________ watts
735.49
74
A farm is planed be planted with corn at a spacing of 30 cm x 60 cm. As engineer in-charge of the mechanization program of the farm which of the following equipment would you recommend?
Row Crop Planter
75
Instrument for measuring the speed of a shaft
Tachometer
76
Instrument for measuring low-pressure head.
Manometer
77
It is a set of concave discs.
Gang
78
Ferrous metals are metals that contain __________.
Iron
79
Which of the following is not a part of a typical lever-operated knapsack sprayer?
pressure gage
80
This scientific phenomenon is the basic principle of operation of spark ignition systems of engines. It says that a change in the magnetic flux in a conducting circuit produces current in the circuit.
electromagnetic induction
81
Draft of disc harrows increases and penetration __________ with speed
decreases
82
The maximum horizontal projection of a tool in the soil perpendicular to the line of motion.
tool width