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.

The diesel engine does not have

A. Carburettor
B. Spark plug
C. Ignition coil
D. All are correct
Answer» E.
2.

The thermal efficiency of diesel engine varies between

A. 25 and 32 per cent
B. 32 and 38 per cent
C. 32 and 40 per cent
D. 40 and 45 per cent
Answer» C. 32 and 40 per cent
3.

Rietz mill is applicable for milling

A. Dry material
B. Semi-dry material
C. Wet material
D. All are correct
Answer» D. All are correct
4.

The hoe type furrow openers work well in

A. Trashy soils
B. Sticky soils
C. Root infested soil
D. All are correct
Answer» D. All are correct
5.

The friction forces existing between the surfaces in relative motion is called

A. Static friction
B. Coefficient of friction
C. Kinetic friction
D. Angle of internal friction
Answer» D. Angle of internal friction
6.

The teeth on the crankshaft gear is

A. Half to camshaft gear
B. Equal to camshaft gear
C. Double of camshaft gear
D. Four times camshaft gear
Answer» B. Equal to camshaft gear
7.

Secondary winding consist of

A. 10000-15000 turns
B. 15000-2000 turns
C. 15000-25000 turns
D. None of these
Answer» C. 15000-25000 turns
8.

Crushing law was proposed by

A. Rittinger
B. Kick
C. Bond
D. None of these
Answer» B. Kick
9.

Evaporation from water bodies and soil masses together with the transpiration from vegetation is termed as

A. Evapotranspiration
B. Water loss
C. Total loss or total evaporation
D. All are correct
Answer» E.
10.

Flooding nozzles have spray angle of

A. 30-45 degree
B. 60-90 degree
C. 90-120 degree
D. 100-150 degree
Answer» E.
11.

The particle size of clay according to USWA is

A. 0.002 mm
B. <0.002 mm
C. 0.002 to 0.05 mm
D. 0.5 to 1.0 mm
Answer» C. 0.002 to 0.05 mm
12.

The size of disc harrow is determined by

A. Maximum width of cut
B. Maximum depth of cut
C. Number of disc
D. Number of gangs
Answer» B. Maximum depth of cut
13.

In dry milling of pulses with seed oil treatment, oils is used at a rate of

A. 0.5 to 1.5 kg/tonne
B. 1.5 to 2.5 kg/tonne
C. 2.5 to 3.5 kg/tonne
D. 3.5 to 1.5 kg/tonne
Answer» C. 2.5 to 3.5 kg/tonne
14.

The first IC engine was invented in the year

A. 1876
B. 1890
C. 1900
D. 1905
Answer» B. 1890
15.

The ratio of the overall surface area of the ground product to overall surface area of the feed is called

A. Grinding efficiency
B. Coefficient of grinding
C. Degree of grinding
D. Milling efficiency
Answer» D. Milling efficiency
16.

The spacing between two adjacent discs in Olpad thresher is

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

The capacity of kothar type storage structure varies from

A. 5 to 15 tonnes
B. 7 to 25 tonnes
C. 9 to 35 tonnes
D. 10 to 40 tonnes
Answer» D. 10 to 40 tonnes
18.

drag link is component of

A. Clutch system
B. Fuel supply system
C. Transmission system
D. Streering system
Answer» E.
19.

The expected annual life of harrow is

A. 8 years
B. 10 years
C. 12 years
D. 14 years
Answer» C. 12 years
20.

Fluidized bed separator used to separate the seed is

A. Lighter seeds
B. Medium seeds
C. Heavier seeds
D. All kinds of seeds
Answer» B. Medium seeds
21.

Ocean waves contain

A. Kinetic energy
B. Potential energy
C. Static energy
D. All are correct
Answer» E.
22.

The detonation of fuel takes place during

A. Combustion
B. Injection
C. Exhaust
D. None of these
Answer» B. Injection
23.

V' pocket (vetch) type disc separator is used for separation

A. Oblong shape material
B. Irregular shape material
C. Round shape material
D. All are correct
Answer» D. All are correct
24.

The period petween start of injection and ignition is called

A. Ignition period
B. Injection time
C. Ignition delay
D. All are correct
Answer» D. All are correct
25.

Of the following, which is the form of precipitation?

A. Rainfall
B. Snowfall
C. Hail
D. All are correct
Answer» E.
26.

In hydraulic sprayers, the degree of atomization is primarily a function of

A. Air velocity
B. Size of nozzle
C. Size and shape of atomizer
D. Liquid pressure and the nozzle characteristics
Answer» E.
27.

In attrition mill, the size of food grains is reduced due to

A. Impact and shear
B. Shear and crushing
C. Impact and crushing
D. Impact only
Answer» C. Impact and crushing
28.

In angle bar cylinder type thresher the clearance between cylinder and concave unit at entrance is

A. 7-13 mm
B. 13-19 mm
C. 15-20 mm
D. 20-25 mm
Answer» C. 15-20 mm
29.

The governor is used on tractor engine is called

A. Constant speed governor
B. Variable speed governor
C. Both (a) & (b)
D. None of these
Answer» C. Both (a) & (b)
30.

In spark ignition engines fuel is ignited by

A. Battery ignition system
B. Magneto ignition system
C. Both (a) & (b)
D. None of these
Answer» D. None of these
31.

The useful working hours of mounted type combine is

A. 1000
B. 1200
C. 1800
D. 2000
Answer» E.
32.

In ignition system, magneto is used for

A. Supply of fuel
B. Supply of spark
C. Supply of air fuel mixture
D. Supply of air
Answer» C. Supply of air fuel mixture
33.

In a windmill, tip speed ratio increases with

A. Increase of number of blades
B. Decrease of number of blades
C. Independent of blade number
D. None of these
Answer» C. Independent of blade number
34.

Single plate clutch is also known as

A. Single disk clutch
B. Double disk clutch
C. Dog clutch
D. All are correct
Answer» B. Double disk clutch
35.

In airplane sprayer, the tank capacity ranges between

A. 450-1000 liters
B. 450-1500 litres
C. 450-1800 litres
D. 450-2200 litres
Answer» E.
36.

Venturi tube is provided in carburet or for

A. Producing low pressure
B. Producing high pressure
C. Both (a) & (b)
D. None of these
Answer» B. Producing high pressure
37.

Erosion is the interaction

A. Erosivity and rainfall intensity
B. Erodibility and land use
C. Erosivity and erodibility
D. None of these
Answer» D. None of these
38.

At steep slope the depth of flow is

A. Less than the flat surface
B. More than the flat surface
C. Same flow depth
D. None of these
Answer» B. More than the flat surface
39.

For engine bearings, a type of lubrication system adopted is

A. Gravity feed lubrication
B. Wick lubrication
C. Ring lubrication
D. All are correct
Answer» E.
40.

A subsoiler is used to break a hard pan of soil upto a depth of

A. 15 cm
B. 20 cm
C. 30 cm
D. 100 cm
Answer» E.
41.

The true point of hitch of the implement is called

A. Line of pull
B. Centre of pull
C. Centre of resistance
D. All are correct
Answer» C. Centre of resistance
42.

The shelling of paddy in rubber roll sheller is due to

A. Rubbing
B. Crushing
C. Shearing
D. All are correct
Answer» D. All are correct
43.

Unit injector is also known as

A. Nozzle
B. Atomizer
C. Fuel valve
D. All are correct
Answer» C. Fuel valve
44.

Turbocharger of an engine is driven by

A. Dynamo
B. PTO shaft
C. Exhaust gas
D. Air
Answer» D. Air
45.

The internal angle between the gangs of single action disc harrow is

A. Less than 90?
B. Exactly 90?
C. More than 90?
D. None of above
Answer» D. None of above
46.

The coulter of MB plough is generally mounted

A. Above share point
B. Little ahead of share point
C. Both (a) & (b)
D. None of these
Answer» D. None of these
47.

In case of porosity the volume of pores may change

A. With volume change of voids
B. With volume change of solids
C. Without volume change of solids
D. All are correct
Answer» D. All are correct
48.

The useful life of self-propelled combine is

A. 5 years
B. 6 years
C. 8 years
D. 10 years
Answer» C. 8 years
49.

The specific gravity of petrol at 15? is

A. 0.73
B. 0.82
C. 0.9
D. 0.85
Answer» B. 0.82
50.

Wind due to its motion possesses the

A. Potential energy
B. Kinetic energy
C. Chemical energy
D. Electrical energy
Answer» C. Chemical energy