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
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
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
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 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
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
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
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
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
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
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
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 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
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
Ackermann linkage is generally used in:
A)
Heavy trucks
B)
Two-wheelers
C)
Passenger cars
D)
Airplanes
Option C is correct: Passenger cars.
Motor Vehicle Inspector • 2025 • Paper-III
According to load, which of the following is a light motor vehicle (LMV)?
A)
Bus
B)
Truck
C)
Car
D)
Tractor
Option C is correct: Car.
Motor Vehicle Inspector • 2025 • Paper-III
Which of the following tools is considered a part of the basic tool kit for a mechanic?
A)
Hydraulic jack
B)
Spanner set
C)
Wheel balancer
D)
Engine hoist
Option B is correct: Spanner set.
Motor Vehicle Inspector • 2025 • Paper-III
The steering system commonly used in modern cars is:
A)
Worm and sector
B)
Rack and pinion
C)
Cam and lever
D)
Screw and nut
Option B is correct: Rack and pinion.
Motor Vehicle Inspector • 2025 • Paper-III
Which stroke in a four-stroke petrol engine produces the useful power output?
A)
Intake stroke
B)
Compression stroke
C)
Power (combustion) stroke
D)
Exhaust stroke
Option C is correct: Power (combustion) stroke.
Motor Vehicle Inspector • 2025 • Paper-III
Which of the following is a four-stroke engine component?
A)
Rotor
B)
Piston
C)
Commutator
D)
Stator
Option B is correct: Piston.
Motor Vehicle Inspector • 2025 • Paper-III
Synchromesh gearbox prevents:
A)
Gear clash during engagement
B)
Overdrive operation
C)
Wear of clutch plate
D)
Overheating of oil
Option A is correct: Gear clash during engagement.
Motor Vehicle Inspector • 2025 • Paper-III
A slip joint in a Power take off (PTO) shaft is used to:
A)
Change the direction of power flow
B)
Engage and disengage the clutch
C)
Increase the engine speed
D)
Allow the shaft length to change due to suspension movement
Option D is correct: Allow the shaft length to change due to suspension movement.
Motor Vehicle Inspector • 2025 • Paper-III
Hydroelastic suspension uses which of the following to absorb shock?
A)
Springs and oil
B)
Compressed air and springs
C)
Rubber and fluid-filled displacers
D)
Metal rods and pistons
Option C is correct: Rubber and fluid-filled displacers.
Motor Vehicle Inspector • 2025 • Paper-III
The chassis frame provides:
A)
Crash protection only
B)
Streamlining only
C)
Anti theft locking
D)
Base to mount all components
Option D is correct: Base to mount all components.
Motor Vehicle Inspector • 2025 • Paper-III
A diesel engine operates on which ignition principle?
A)
Spark ignition
B)
Compression ignition
C)
Glow plug ignition
D)
External combustion
Option B is correct: Compression ignition.
