Motor Vehicle Inspector • 2025 • Paper-III
The word ‘automobile’ is derived from which two words?
A)
Auto and fuel
B)
Auto and mobile
C)
Auto and engine
D)
Mobile and motor
Option B is correct: Auto and mobile.
Motor Vehicle Inspector • 2025 • Paper-III
Main SI engine exhaust pollutants:
A)
CO, HC, NOx
B)
Lead only
C)
SO only
D)
Smoke only
Option A is correct: CO, HC, NOx.
Motor Vehicle Inspector • 2025 • Paper-III
Which of the following is true about independent suspension systems?
A)
Both wheels are mounted on a common axle
B)
One wheel’s movement affects the other
C)
Each wheel moves independently of the other
D)
They are only used in trucks
Option C is correct: Each wheel moves independently of the other.
Motor Vehicle Inspector • 2025 • Paper-III
In a four-stroke diesel engine, during the intake stroke, the engine draws:
A)
Air-fuel mixture
B)
Exhaust gases
C)
Pure air only
D)
Fuel only
Option C is correct: Pure air only.
Motor Vehicle Inspector • 2025 • Paper-III
NOx forms at:
A)
Very rich mixture
B)
Cold start
C)
High combustion temperature
D)
Low load idle
Option C is correct: High combustion temperature.
Motor Vehicle Inspector • 2025 • Paper-III
Torsion bars act by:
A)
Shear only
B)
Compression
C)
Bending
D)
Twisting along their axis
Option D is correct: Twisting along their axis.
Motor Vehicle Inspector • 2025 • Paper-III
A non-reversible steering system:
A)
Transmits road shocks to the steering wheel
B)
Doesn’t return to center after turning
C)
Improves vehicle stability
D)
Is commonly used in power steering
Option B is correct: Doesn’t return to center after turning.
Motor Vehicle Inspector • 2025 • Paper-III
Unit of specific fuel consumption is:
A)
g/kWh
B)
kWh/kg
C)
kg/m³
D)
Nm/min
Option A is correct: g/kWh.
Motor Vehicle Inspector • 2025 • Paper-III
Toe in is:
A)
Rear edges closer than front
B)
Equal distances
C)
Excess camber
D)
Front edges of wheels closer than rear edges
Option D is correct: Front edges of wheels closer than rear edges.
Motor Vehicle Inspector • 2025 • Paper-III
Axle shafts are made from:
A)
Brass
B)
Aluminium
C)
Alloy steel
D)
Cast iron
Option C is correct: Alloy steel.
Motor Vehicle Inspector • 2025 • Paper-III
Which of the following is not a function of the suspension system?
A)
Maintain ride comfort
B)
Ensure tire contact with the road
C)
Improve vehicle stability
D)
Increase fuel consumption
Option D is correct: Increase fuel consumption.
Motor Vehicle Inspector • 2025 • Paper-III
The chassis frame of an automobile:
A)
Enhances interior design
B)
Supports only the engine
C)
Acts as the main load-carrying structure
D)
Covers the fuel tank
Option C is correct: Acts as the main load-carrying structure.
Motor Vehicle Inspector • 2025 • Paper-III
Which component is used in a synchromesh gearbox to match gear speeds before engagement?
A)
Dog clutch
B)
Synchronizer ring
C)
Sun gear
D)
Torque converter
Option B is correct: Synchronizer ring.
Motor Vehicle Inspector • 2025 • Paper-III
Which component directly connects the steering gearbox to the drag link?
A)
Idler arm
B)
Drop arm (Pitman arm)
C)
Tie rod
D)
Stub axle
Option B is correct: Drop arm (Pitman arm).
Motor Vehicle Inspector • 2025 • Paper-III
In which type of suspension system is a torsion bar commonly used?
A)
Air suspension
B)
Hydroelastic suspension
C)
Independent suspension
D)
Rigid axle suspension
Option C is correct: Independent suspension.
Motor Vehicle Inspector • 2025 • Paper-III
Which of the following best defines an automobile?
A)
A device that converts energy into work
B)
A self-propelled vehicle used for land transportation
C)
A machine used in industries
D)
A component of a computer system
Option B is correct: A self-propelled vehicle used for land transportation.
Motor Vehicle Inspector • 2025 • Paper-III
Rubber springs are used in:
A)
Light vehicles and trailers
B)
Locomotives
C)
Aircraft only
D)
Heavy trucks only
Option A is correct: Light vehicles and trailers.
Motor Vehicle Inspector • 2025 • Paper-III
Worm and roller is:
A)
Type of steering gear
B)
Suspension part
C)
Brake cam
D)
Gearbox type
Option A is correct: Type of steering gear.
Motor Vehicle Inspector • 2025 • Paper-III
Chassis frames are usually made from:
A)
Cast iron
B)
Plastic
C)
Mild steel
D)
Aluminium foil
Option C is correct: Mild steel.
Motor Vehicle Inspector • 2025 • Paper-III
Which of the following transmits power from the gearbox to the differential in a rear-wheel-drive vehicle?
A)
Clutch plate
B)
Universal joint
C)
Propeller shaft
D)
Axle shaft
Option C is correct: Propeller shaft.
Motor Vehicle Inspector • 2025 • Paper-III
The drag link connects which two parts?
A)
Steering shaft to wheel
B)
Drop arm to steering arm
C)
Gearbox to idler arm
D)
Rack to pinion
Option B is correct: Drop arm to steering arm.
Motor Vehicle Inspector • 2025 • Paper-III
Caster angle affects:
A)
Steering returnability and stability
B)
Braking force
C)
Engine performance
D)
Tire tread pattern
Option A is correct: Steering returnability and stability.
Motor Vehicle Inspector • 2025 • Paper-III
Which component finally delivers the power to the wheels in a rear-wheel-drive car?
A)
Gearbox
B)
Clutch
C)
Propeller shaft
D)
Axle shafts
Option D is correct: Axle shafts.
Motor Vehicle Inspector • 2025 • Paper-III
Which type of clutch uses centrifugal force to operate automatically?
A)
Single plate clutch
B)
Cone clutch
C)
Centrifugal clutch
D)
Diaphragm clutch
Option C is correct: Centrifugal clutch.
Motor Vehicle Inspector • 2025 • Paper-III
Heat treated spring steel is used to:
A)
Improve elasticity
B)
Add weight
C)
Reduce durability
D)
Reduce strength
Option A is correct: Improve elasticity.
