Motor Vehicle Inspector • 2025 • Paper-III
Typical compression ratio in SI engines:
A)
6:1 to 9:1
B)
15:1 to 22:1
C)
2:1 to 4:1
D)
Above 25:1
Option A is correct: 6:1 to 9:1.
Motor Vehicle Inspector • 2025 • Paper-III
Centre point steering reduces:
A)
Toe-in
B)
Tire wear
C)
Scrub radius
D)
Steering ratio
Option C is correct: Scrub radius.
Motor Vehicle Inspector • 2025 • Paper-III
The Otto cycle is an ideal cycle for
A)
Diesel engines
B)
Petrol (gasoline) engines
C)
Steam turbines
D)
Gas turbines
Option B is correct: Petrol (gasoline) engines.
Motor Vehicle Inspector • 2025 • Paper-III
Centre point steering means:
A)
Equal turning radius L/R
B)
Steering axis passes through wheel contact patch centre
C)
Zero camber
D)
Steering wheel at cabin centre
Option B is correct: Steering axis passes through wheel contact patch centre.
Motor Vehicle Inspector • 2025 • Paper-III
Which component forms the base structure of the car body and supports other body parts like seats and doors?
A)
Bonnet assembly
B)
Floor assembly
C)
Roof assembly
D)
Fuel tank lid
Option B is correct: Floor assembly.
Motor Vehicle Inspector • 2025 • Paper-III
Telescopic dampers are:
A)
Steering linkages
B)
Coil springs
C)
Gear wheels
D)
Hydraulic shock absorbers
Option D is correct: Hydraulic shock absorbers.
Motor Vehicle Inspector • 2025 • Paper-III
The propeller shaft is usually made from:
A)
Rubber
B)
Wood
C)
Hollow steel tube
D)
Aluminum foil
Option C is correct: Hollow steel tube.
Motor Vehicle Inspector • 2025 • Paper-III
One key characteristic of a good suspension system is:
A)
Frequent maintenance
B)
Harsh ride
C)
Reduced braking efficiency
D)
Minimum vibration transmission to the chassis
Option D is correct: Minimum vibration transmission to the chassis.
Motor Vehicle Inspector • 2025 • Paper-III
In air suspension, the air spring compresses and expands to:
A)
Control engine noise
B)
Maintain proper wheel alignment
C)
Increase braking force
D)
Absorb shocks and maintain ride height
Option D is correct: Absorb shocks and maintain ride height.
Motor Vehicle Inspector • 2025 • Paper-III
The suspension system helps maintain:
A)
Engine compression
B)
Contact between tires and road surface
C)
Gearbox alignment
D)
Clutch engagement
Option B is correct: Contact between tires and road surface.
Motor Vehicle Inspector • 2025 • Paper-III
Epicyclic gear train is common in:
A)
Motorcycles only
B)
Manual only
C)
Tractors only
D)
Automatic transmissions
Option D is correct: Automatic transmissions.
Motor Vehicle Inspector • 2025 • Paper-III
The clutch transmits power from:
A)
Gearbox to axle
B)
Differential to axle
C)
Engine to wheels
D)
Engine to gearbox
Option D is correct: Engine to gearbox.
Motor Vehicle Inspector • 2025 • Paper-III
In a pushrod engine (also known as OHV engine), the camshaft is located:
A)
In the cylinder head
B)
Above the valves
C)
In the engine block
D)
Next to the timing belt
Option C is correct: In the engine block.
Motor Vehicle Inspector • 2025 • Paper-III
A suspension system with poor damping characteristics may result in:
A)
Stable ride
B)
Reduced engine torque
C)
Continuous bouncing after hitting a bump
D)
Improved acceleration
Option C is correct: Continuous bouncing after hitting a bump.
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.
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
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
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
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
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
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
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
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
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
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.
