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.

An action involve in threshing of crops are

A. Rubbing action
B. Impact action
C. Stripping action
D. All are correct
Answer» E.
2.

The specific heat of petrol is nearly

A. 2.1 KJ/Kg?C
B. 2.5 KJ/Kg?C
C. 2.8 KJ/Kg?C
D. 3.0 KJ/Kg?C
Answer» B. 2.5 KJ/Kg?C
3.

The boiling range of kerosene is

A. 100 to 200?C
B. 200 to 300?C
C. 300 to 400?C
D. 400 to 500?C
Answer» C. 300 to 400?C
4.

For impact cutting, a single element sharp edge requires a velocity of

A. 5 m/sec
B. 10 m/sec
C. 15 m/sec
D. 20 m/sec
Answer» C. 15 m/sec
5.

Oil rings on the piston are located

A. Below the compression ring
B. Above the piston skirt
C. Above the compression ring
D. Both (a) & (b)
Answer» E.
6.

Transmission oil should be changed after

A. 750 hours
B. 800 hours
C. 1000 hours
D. 1200 hours
Answer» B. 800 hours
7.

The spike tooth harrows are used mainly for

A. Primary tillage
B. Intercultivation
C. Surface finishing
D. None of these
Answer» D. None of these
8.

In diesel cycle engine heat is added at

A. Constant pressure
B. Constant temperature
C. Constant volume
D. None of these
Answer» B. Constant temperature
9.

Pressure in hole type nozzle varies from

A. 15-20 MPs
B. 15-25 MPs
C. 17-34 MPs
D. None of these
Answer» D. None of these
10.

The seeding behind plough is done by a device known as

A. Seed drill
B. Malobansa
C. Planter
D. Dibbler
Answer» C. Planter
11.

A hammer mill type thresher has

A. Hammers
B. Beaters
C. Close cylinder casing
D. All are correct
Answer» E.
12.

Insulated metal of solar cooker is

A. Black from outside
B. Black from inside
C. Black from out and inside
D. White from out and inside
Answer» B. Black from inside
13.

The porosity index of relative volume of pores is influenced by

A. Texture
B. Structure
C. Both (a) and (b)
D. None of these
Answer» D. None of these
14.

Throttle system controls the

A. Engine load
B. Amount of air fuel mixture
C. Both (a) & (b)
D. None of these
Answer» C. Both (a) & (b)
15.

High speed diesel is used in

A. High speed diesel engine
B. Low speed diesel engine
C. Petrol engine
D. Aircraft engine
Answer» B. Low speed diesel engine
16.

Venturi unit is connected to the

A. Fuel injection pump
B. Engine inlet manifold
C. Engine exhaust manifold
D. None of these
Answer» C. Engine exhaust manifold
17.

Settlement of an embankment depends on

A. Void ratio
B. Density of soil
C. Water viscosity
D. All are correct
Answer» B. Density of soil
18.

The boiling range of petrol is

A. 30 to 180?C
B. 30 to 200?C
C. 30 to 230?C
D. 30 to 250?C
Answer» C. 30 to 230?C
19.

A plunger type hand duster is suitable for dusting

A. Small area
B. Medium area
C. Large area
D. All are correct
Answer» B. Medium area
20.

Soil erosion is a

A. Fluvial work
B. Geomorphologic work
C. Both (a) and (b)
D. None of these
Answer» D. None of these
21.

The cam lobes of camshaft helps in

A. Opening and closing the valves
B. Driving the timing gear
C. Driving flywheel
D. Operated crankshaft
Answer» B. Driving the timing gear
22.

In leanest mixture, the fair fuel ratio is about

A. 12;1
B. 14;1
C. 15;1
D. 20;1
Answer» E.
23.

The primary objective of level bench terrace is to

A. Conserve water and control erosion
B. Reduce runoff
C. Make steeply land cultivable
D. All are correct
Answer» B. Reduce runoff
24.

Watershed is a

A. Drainage basin contributing the runoff to a single outlet
B. Hydrological entity
C. Unit of area extent in which hydrologic cycle completes
D. All are correct
Answer» E.
25.

Lead mid battery is generally used in

A. Tractors
B. Aircraft
C. Light Motors
D. None of these
Answer» B. Aircraft
26.

A part that connects piston with connection rod is

A. Piston ring
B. Gudgen pin
C. Safety pin
D. Camshaft
Answer» C. Safety pin
27.

A wire (standard wire gauge) used in secondary coli is about

A. 25 SWG
B. 30 SWG
C. 40 SWG
D. 50 SWG
Answer» D. 50 SWG
28.

Ignition delay of high-speed engine should be about

A. 0.01 second
B. 0.001 second
C. 0.0001 second
D. None of these
Answer» C. 0.0001 second
29.

Which of the following items utilizes direct energy of sun

A. Solar heater
B. Solar cooker
C. Solar cell
D. All are correct
Answer» E.
30.

In cell feed type-metering mechanism, cell fill is affected by

A. Speed of cell
B. Size of cell
C. Size of seeds
D. All are correct
Answer» E.
31.

The clean grain received at main grain cotlet with respect to total grain mixture received at main gram outlet is

A. Threshing efficiency
B. Cleaning efficiency
C. Winnowing efficiency
D. None of these
Answer» C. Winnowing efficiency
32.

In inclined draper, the major factor causing the separation of grain is

A. Shape and size
B. Shape and surface texture
C. Shape and weight
D. Weight and size
Answer» C. Shape and weight
33.

Propeller type unit runs at a speed of

A. 100-200 rpm
B. 200-300 rpm
C. 300-400 rpm
D. 400-500 rpm
Answer» D. 400-500 rpm
34.

Contour trenches are constructed

A. On contour of the land
B. Not on the contour of the land
C. Along the land slope
D. All are correct
Answer» B. Not on the contour of the land
35.

In burr grinder, the plates for grinding are

A. 1
B. 2
C. 3
D. 4
Answer» C. 3
36.

The corrugated seed tube used in seed drill is made up of

A. Plastic
B. Rubber
C. Metal
D. PVC
Answer» C. Metal
37.

DG-general service, DM-moderately service and DS-very severe services are service classes for the

A. Petrol engine
B. Steam engine
C. Kerosene engines
D. Diesel engines
Answer» E.
38.

A geological formation which is essentially impermeable for flow of water even though it may contain water in its pores, is called

A. Aquifuge
B. Aquiclude
C. Aquitard
D. Aquifer
Answer» C. Aquitard
39.

A recommended safe limit of land slope for efficient irrigation in heavy soil is

A. 0.05 to 0.25 %
B. 0.20 to 0.40%
C. 0.25 to 0.65%
D. All are correct
Answer» B. 0.20 to 0.40%
40.

The part of plough that penetrates into the soil and cuts the oil in horizontal direction is

A. Share
B. Coulter
C. Mould board
D. Land side
Answer» B. Coulter
41.

The quality of fuel is judged by

A. Colour
B. Volatility
C. Both (a) & (b)
D. None of these
Answer» C. Both (a) & (b)
42.

The hopper design to plant accurately meter of all varieties of maize and all type of seeds from tomato

A. Duplex hopper
B. Richmond hopper
C. Both (a) & (b)
D. None of these
Answer» D. None of these
43.

Primary objective of graded terrace is to

A. Reduce the field slope length
B. Remove runoff with non-erosive way
C. Both (a) & (b)
D. None of these
Answer» D. None of these
44.

The firing order of 4-stroke 4-cylinder engine is

A. 1-3-2-4
B. 1-3-4-2
C. 1-4-3-2
D. 1-2-3-4
Answer» C. 1-4-3-2
45.

The liuid used in bellows types thermostat is known as

A. Alcohol
B. Ether
C. Mercury
D. Both (b) & (c)
Answer» E.
46.

A marginal farmer has land holding

A. Less than 4 ha land
B. Between 4 and 10 ha
C. Less than 10 ha
D. More than 10 ha
Answer» C. Less than 10 ha
47.

Per hectare application rte of smogging is

A. 1 liter
B. Less than liter
C. 2 liter
D. Less than 2 liter
Answer» E.
48.

Mass movement of soil occurs at

A. Critical slope
B. Mild slope
C. Steep slope
D. None of these
Answer» D. None of these
49.

Geothermal energy from the earth's interior is

A. Exhaustible
B. Inexhaustible
C. Non-renewable
D. None of these
Answer» C. Non-renewable
50.

The API gravity of light diesel oil is

A. 22
B. 25
C. 40
D. 50
Answer» B. 25