Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

Ratio of brake horsepower to indicated horsepower is

A. Thermal efficiency
B. Volumetric efficiency
C. Mechanical efficiency
D. Brake efficiency
Answer» D. Brake efficiency
2.

The porosity of clayey soil usually ranges from

A. 30 to 35 %
B. 35 to 50%
C. 40 to 60%
D. 45 to 65%
Answer» D. 45 to 65%
3.

Stroke law is applied when Reynoid's number is

A. Less than 1
B. More than
C. Less than 2
D. Less than or equal to
Answer» E.
4.

Detonation results in

A. Interruption in lubrication
B. Delay in ignition
C. Loss of power
D. All are correct
Answer» D. All are correct
5.

Diesel engine works on principle of

A. Diesel cycle
B. Otto cycle
C. Carnot cycle
D. None of these
Answer» B. Otto cycle
6.

In battery ignition system primary cricuit includes

A. Primary coil
B. Secondary coil
C. Both (a) & (b)
D. None of these
Answer» B. Secondary coil
7.

The action involved in harvesting of crops is

A. Scissors action
B. Tearing action
C. Slicing action
D. All are correct
Answer» E.
8.

For hot climate the suitable type of tractor is

A. Water cooled
B. Air cooled
C. Both (a) & (b)
D. None of these
Answer» D. None of these
9.

Percentage of bran in therice is

A. 2-4%
B. 4-6%
C. 6-8%
D. 8-10%
Answer» C. 6-8%
10.

The major constitute of biogas is

A. Methane
B. Ethane
C. Carbon dioxide
D. Carbon monoxide
Answer» B. Ethane
11.

A multi-crop thresher is used for threshing

A. Wheat
B. Paddy
C. Soyabean
D. All are correct
Answer» E.
12.

The operating speed of combine harveter varies within a range of

A. 600-800 rpm
B. 900-1000 rpm
C. 600-1400 rpm
D. Above 1500 rpm
Answer» D. Above 1500 rpm
13.

The percentage of protein by weight in pulse is

A. 15-20%
B. 17-5%
C. 18-27%
D. 20-30%
Answer» C. 18-27%
14.

The firing order of 4 strokes 6 cylinder engine is

A. 1-5-3-6-2-4
B. 1-3-4-2-6-5
C. 1-3-2-5-4-6
D. 1-3-5-6-4-2
Answer» B. 1-3-4-2-6-5
15.

Final drive is a

A. Speed increasing unit
B. Speed reduction unit
C. Torque increasing unit
D. Torque reduction unit
Answer» C. Torque increasing unit
16.

At proper alignment of mower the cutter bar is set at

A. 20? inward
B. 5? inward
C. 10? inward
D. 15? inward
Answer» B. 5? inward
17.

In drying process, the heat required to convert one kilogram of grain moisture to water vapour is

A. 450 kcal
B. 500 kcal
C. 550 kcal
D. 650 kcal
Answer» E.
18.

The weight of diesel engine per horsepower is

A. Lighter than petrol engine
B. Equal to petrol engine
C. Heavier than petrol engine
D. None of these
Answer» D. None of these
19.

The pH value of sturry for better gas production should be between

A. 3?5
B. 5?6
C. 7?8
D. 8?9
Answer» D. 8?9
20.

A windmill suitable for water lifting is

A. Single blade type
B. Double blade type
C. Triple blade type
D. Multiple blade type
Answer» E.
21.

In rotary type power duster, the speed of blower is

A. 1000 rpm
B. 2000 rpm
C. 3000 rpm
D. 4000 rpm
Answer» E.
22.

Distillation test measures the

A. Calorific value
B. SAE number
C. Voltility
D. Power
Answer» B. SAE number
23.

The specific fuel consumption of petrol engine is

A. 180 gm/bhp/hr
B. 200 gm/bhp/hr
C. 150 gm/bhp/hr
D. 290 gm/bhp/hr
Answer» E.
24.

A dynamically balanced mower has crank speed of

A. 900-1200 rpm
B. 1000-1200 rpm
C. 1000-1250 rpm
D. 1000-1300 rpm
Answer» C. 1000-1250 rpm
25.

The hydrological flood routing method used is

A. Energy equation
B. Equation of motion
C. Equation of continuity
D. All are correct
Answer» D. All are correct
26.

The cutter bar of conventional combine is operated at

A. 350-800 strokes/min
B. 500-800 strokes/min
C. 800-900 strokes/min
D. 800-1200 strokes/min
Answer» D. 800-1200 strokes/min
27.

Ultra low volume sprayer is used for application of

A. Insecticides
B. Pesticides
C. Weedicides
D. All are correct
Answer» D. All are correct
28.

The mounted type seed drill attached to tractor by

A. Single hitch point
B. Two hitch-point
C. Three point hitch
D. Shank
Answer» D. Shank
29.

The gap of spark plug generally should be

A. 0.1 mm
B. 0.3 mm
C. 0.5 mm
D. 0.6 mm
Answer» E.
30.

The ratio of rolling resistance to dynamic load is

A. Coefficient of traction
B. Tractive efficiency
C. Coefficient of rolling resistance
D. Rolling resistance
Answer» D. Rolling resistance
31.

Solid injection system is also known as

A. Airless mechanical injection
B. Air injection
C. Jerk pump system
D. All are correct
Answer» B. Air injection
32.

Slogging or lugging ability is associated with

A. Engine speed
B. Engine torque
C. Engine load
D. All are correct
Answer» C. Engine load
33.

A speed of centrifugal dehusker ranges between

A. 1500-2000 rpm
B. 2000-2500 rpm
C. 2500-3000 rpm
D. 3000-3500 rpm
Answer» D. 3000-3500 rpm
34.

Mass curve of a rainfall of a storm is plotted between

A. Accumulated precipitation and time in chronological order
B. Accumulated rainfall intensity and time
C. Rainfall intensity and time in chronological order
D. None of these
Answer» B. Accumulated rainfall intensity and time
35.

Universal Soil Loss Equation (USLE) is named because

A. Its validity is more:
B. It accounts all parameters affecting the soil loss
C. It is universally adopted
D. All are correct
Answer» C. It is universally adopted
36.

In force feed lubrication system pump is driven by

A. Camshaft
B. Crankshaft
C. Both (a) & (b)
D. None of these
Answer» B. Crankshaft
37.

When cam gear rotes one time the crankshaft gear will rotate

A. Half time
B. Two times
C. Same rotation of cam gear
D. Three times
Answer» C. Same rotation of cam gear
38.

A pump used in force-feed lubrication system is

A. Centrifugal pump
B. Reciprocating pump
C. Positive displacement pump
D. None of these
Answer» D. None of these
39.

Ring lubrication system is generally used for lubrication of

A. Vertical bearings
B. Horizontal bearings
C. Inclined bearings
D. None of these
Answer» C. Inclined bearings
40.

Splash system of lubrication is generally used in

A. Single cylinder & stationary engine
B. Multi-cylinder engines
C. Tractor engines
D. All are correct
Answer» B. Multi-cylinder engines
41.

A pump used in force feed lubricating system is

A. Positive displacement type
B. Gear type
C. Vane type
D. All are correct
Answer» E.
42.

In force-feed cooling system thermostat valve begins to open at

A. 70?C
B. 74?C
C. 78?C
D. 80?C
Answer» C. 78?C
43.

The output capacity of treading with bullock is

A. 100 kg/h
B. 120 kg/h
C. 140 kg/h
D. 160 kg/h
Answer» C. 140 kg/h
44.

Force-feed lubrication system is commonly used in

A. High speed multi-cylinder engine
B. Tractor engines
C. Truck and automobile engine
D. All are correct
Answer» B. Tractor engines
45.

Hand operated sprayers are suitable for

A. Small holdings
B. Medium holdings
C. Large holdings
D. Very large holdings
Answer» B. Medium holdings
46.

Hand atomizer is used for spraying in

A. Nursery
B. Orchard
C. Field crop
D. None of these
Answer» B. Orchard
47.

The output capacity of rotary power scythe is about

A. 0.1-0.2 ha/day
B. 0.2-0.4 ha/day
C. 0.4-0.6 ha/day
D. 0.4-0.8 ha/day
Answer» C. 0.4-0.6 ha/day
48.

The average output capacity of tractor mounted groundnut digger shaker is

A. 0.15 ha/h
B. 0.20 ha/h
C. 0.25 ha/h
D. 0.27 ha/h
Answer» E.
49.

The output capacity of rotary power scythe depends on

A. Field condition
B. Physique of operator
C. Both (a) & (b)
D. None of these
Answer» D. None of these
50.

The capacity of hand dropper is about

A. 0.1 ha/day
B. 0.2 ha/day
C. 0.3 ha/day
D. 0.4 ha/day
Answer» C. 0.3 ha/day