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.

For air bone sounds the reference sound pressure is

A. 0.001 N/m2
B. 0.00002 N/m2
C. 0.0003 N/m2
D. 0.00004 N/m2
Answer» C. 0.0003 N/m2
2.

If strokes bore ratio increases then thermal efficiency

A. Decreases
B. Increses
C. Remains same
D. None of these
Answer» C. Remains same
3.

Rainfall intensity is the ratio of

A. Time to rainfall amount
B. Rainfall amount to time
C. Rainfall amount to falling valocity
D. Both (a) & (b)
Answer» C. Rainfall amount to falling valocity
4.

Front wheel of tractor is smaller than rear wheel that helps

A. More pull of load
B. Increasing turning
C. Sharp turning
D. All are correct
Answer» D. All are correct
5.

Which of the following instruments is connected with stream flow measurement?

A. Electro-magnetic flow meter
B. Sounding weight
C. Eco-depth recorder
D. All are correct
Answer» E.
6.

The anti-knock quality of petrol fuel is determined by

A. Cetane number
B. Octane number
C. Both (a) & (b)
D. None of these
Answer» C. Both (a) & (b)
7.

In forced circulation system, a thermostat valve is placed at

A. Forward end of cylinder head
B. Backward end of cylinder head
C. Between cylinder and radiator
D. None of these
Answer» B. Backward end of cylinder head
8.

Thermostat valve begins open at

A. 70-75?C
B. 70-81?C
C. 65-75?C
D. 75-81?C
Answer» B. 70-81?C
9.

Tractive efficiency is affected by

A. Slope of land
B. Wheel size
C. Height of hitch
D. All are correct
Answer» E.
10.

The group of number of discs that is mounted on a gang axle is

A. Gang
B. Gang axle
C. Arbor bolt
D. Gang bolt
Answer» B. Gang axle
11.

The equipment that has no driven/moving component is

A. Tool
B. Machine
C. Implemented
D. Equipment
Answer» D. Equipment
12.

The density of wheat is about

A. 850-100 kg/m3
B. 998-1238 kg/m3
C. 1150-1300 kg/m3
D. 1200-1450 kg/m3
Answer» C. 1150-1300 kg/m3
13.

Engine requires overhauling in case of

A. Poor compression
B. Mechanical failure
C. Both (a) & (b)
D. All are correct
Answer» D. All are correct
14.

In MB plough, a small irregular piece of metal has similar shape to ordinary plough bottom is

A. Jointer
B. Coulter
C. Gunnel
D. None of these
Answer» B. Coulter
15.

The moisture tension of a soil at permanent wilting point ranges from

A. 7 to 15 atm
B. 15 to 32 atm
C. 7 to 32 atm
D. 15 to 45 atm
Answer» D. 15 to 45 atm
16.

Forward speed of crawler tractor is restricted to about

A. 5 kmph
B. 6 mph
C. 10 kmph
D. Both (b) & (c)
Answer» E.
17.

The optimum moisture content (wb) for wheat harvesting is

A. 12-14%
B. 14-16%
C. 16-18%
D. 18-20%
Answer» D. 18-20%
18.

Broad base terrace is also known as

A. Bench terrace
B. Channel terrace
C. Drainage type terrace
D. None of these
Answer» D. None of these
19.

General formula of olefins is

A. Cn H2n
B. Cn Hn
C. Cn H2n+2
D. Cn H2n-2
Answer» B. Cn Hn
20.

An engine used in rotary power scythe is

A. High speed diesel
B. High speed petrol
C. Gasoline engine
D. Kerosene engine
Answer» C. Gasoline engine
21.

Swirl plate is a part of

A. Flat fan nozzle
B. Cone nozzle
C. Spinning disc nozzle
D. None of these
Answer» C. Spinning disc nozzle
22.

The percentage of shelling outturn of groundnut decorticator is

A. 50
B. 60
C. 75
D. 80
Answer» D. 80
23.

The disc plough is advantageous over MB plough in respect of

A. Suitable for deep ploughing
B. Complete covering of trashes and weeds
C. Leaves field levelled
D. All are correct
Answer» B. Complete covering of trashes and weeds
24.

The elements of oil filter is

A. Cloth & felt
B. Paper
C. Thin metal plate
D. All are correct
Answer» E.
25.

In disc plough, a device used to prevent disc from clogging is

A. Spacer
B. Scraper
C. Standard
D. Spool
Answer» C. Standard
26.

The magnitude of precipitation varies with

A. Time
B. Space
C. Both (a) and (b)
D. None of these
Answer» D. None of these
27.

The relative proportion of sand, clay and silt determines

A. Soil structure
B. Soil texture
C. Soil mass
D. Soil volume
Answer» C. Soil mass
28.

The tilt angle of wheat plough is

A. 0?
B. 15-25?
C. 35-42?
D. 42-45?
Answer» B. 15-25?
29.

In Otto cycle. Heat is added at

A. Constant pressure
B. Constant temperature
C. Constant volume
D. None of these
Answer» D. None of these
30.

The tides in a period of 24 hours 50 minutes are

A. One high and one low
B. One high and two low
C. Two high and two low
D. Two high and one low
Answer» D. Two high and one low
31.

The volume of liquid required for ground spraying of field crop is

A. 100 litres/ha
B. 200 litres/ha
C. 300 litres/ha
D. 400 litres/ha
Answer» E.
32.

The grain that is carried over the rear of the sieve with chaff and blown out of the combine is

A. Cylinder loss
B. Rack loss
C. Sieve loss
D. None of these
Answer» D. None of these
33.

A aquifer found between impermeable layer is

A. Non-artsian aquifer
B. Artesian aquifer
C. Unconfined aquifer
D. Free aquifer
Answer» C. Unconfined aquifer
34.

Black smoke indicates

A. Burning of libricant in the cylinder
B. Presence of water in fuel
C. Engine is overloaded
D. None of these
Answer» D. None of these
35.

An instrument, which measures the total or global radiation over a hemispherical field of view is

A. Pyranometer
B. Thermister
C. Thermocouple
D. Thermometer
Answer» B. Thermister
36.

Equipment for placing seedlings in the soil is called

A. Seed drill
B. Seed-cum-fertilizer drill
C. Planter
D. Transplanter
Answer» E.
37.

Dibbler is a

A. Seed drill
B. Planter
C. Transplanter
D. None of these
Answer» C. Transplanter
38.

In flail mower, knives operating are in

A. Horizontal plane and in cylinder
B. Vertical plane and in cylinder
C. Horizontal plane and around cylinder
D. Vertical plane and around the horizontal
Answer» D. Vertical plane and around the horizontal
39.

Renewable source of energy is

A. Exhaustible
B. Inexhaustible
C. Nuclear based
D. Biogas
Answer» C. Nuclear based
40.

The purpose of ploughing is

A. To improve soil aeration
B. To prevent soil erosion
C. To add fertility to soil
D. All are correct
Answer» E.
41.

In thresher, the percentage of healthy grain dropped from sieve with respect to healthy grain received from main outlet is

A. Cylinder loss
B. Blower loss
C. Sieve loss
D. Visible loss
Answer» D. Visible loss
42.

In rotary dryer, the diameter of drum ranges between

A. 2-4 metres
B. 3-5 metres
C. 3-6 metres
D. 4-8 metres
Answer» D. 4-8 metres
43.

Recovery of dhal in each pass is reduced by

A. 0.5-0.7%
B. 0.8-1.1%
C. 11.5-2.0%
D. 1.0-3.5%
Answer» D. 1.0-3.5%
44.

In multi hole nozzle, the number of holes varies as

A. 2?5
B. 3?8
C. 4?10
D. 4?18
Answer» E.
45.

The knives used in dynamically balanced mower are

A. Single
B. Double
C. Many
D. All are correct
Answer» C. Many
46.

The minimum application rate with air blast sprayer for crchards may be

A. 10-20 1/ha
B. 25-50 1/ha
C. 45-90 1/ha
D. 150-250 1/ha
Answer» D. 150-250 1/ha
47.

The speed of multi-blade rotor is

A. 20-40 rpm
B. 40-60 rpm
C. 60-80 rpm
D. 80.100 rpm
Answer» D. 80.100 rpm
48.

Positive plate of battery is made of

A. Lead
B. Antimony
C. Both (a) & (b)
D. None of these
Answer» D. None of these
49.

Commecting rod converts

A. Reciprocating motion piston into rotary motion crankshaft
B. Rotary motion of piston into reciprocating motion of crankshaft
C. Rotary motion of piston into oscillatory motion of crankshaft
D. Oscillatory motion of piston into rotary motion of crankshaft
Answer» B. Rotary motion of piston into reciprocating motion of crankshaft
50.

Particles size for saltation process ranges from

A. 0.1 to 0.5 mm diameter
B. 0.5 to 1.0 mm diameter
C. 0.1 to 0.01 mm diameter
D. None of these
Answer» B. 0.5 to 1.0 mm diameter