Motor Vehicle Inspector • 2025 • Paper-III
Which of the following is a rotary-type internal combustion engine?
A)
V6 engine
B)
Opposed piston engine
C)
Wankel engine
D)
Boxer engine
Option C is correct: Wankel engine.
Motor Vehicle Inspector • 2025 • Paper-III
In which type of vehicle is the three-quarter floating axle commonly used?
A)
Heavy-duty trucks.
B)
Light passenger truck
C)
Motorcycle
D)
Electric scooters
Option B is correct: Light passenger truck.
Motor Vehicle Inspector • 2025 • Paper-III
Which of the following is NOT a characteristic of an automobile?
A)
Self-propelled
B)
Designed for transportation on roads
C)
Powered by human effort
D)
Used for transporting people or goods
Option C is correct: Powered by human effort.
Motor Vehicle Inspector • 2025 • Paper-III
Oversteer is a condition where:
A)
The front tires lose traction first
B)
The rear tires lose traction first
C)
Both tires lose traction equally
D)
None of the above
Option B is correct: The rear tires lose traction first.
Motor Vehicle Inspector • 2025 • Paper-III
In a constant mesh gearbox, gear selection is made by:
A)
Moving the gear itself
B)
Engaging dog clutches with the desired gear
C)
Changing gear diameter
D)
Applying fluid pressure
Option B is correct: Engaging dog clutches with the desired gear.
Motor Vehicle Inspector • 2025 • Paper-III
Brake horsepower is:
A)
Wheel hub torque only
B)
Piston crown pressure
C)
Measured at crankshaft output
D)
Cylinder indicated power
Option C is correct: Measured at crankshaft output.
Motor Vehicle Inspector • 2025 • Paper-III
Which of the following fuels is commonly used in compression ignition (CI) reciprocating engines?
A)
Petrol
B)
Diesel
C)
Kerosene
D)
Natural gas
Option B is correct: Diesel.
Motor Vehicle Inspector • 2025 • Paper-III
Glow plugs are used in:
A)
Petrol engines
B)
Diesel engines for cold start
C)
Steam turbines
D)
Gas turbines
Option B is correct: Diesel engines for cold start.
Motor Vehicle Inspector • 2025 • Paper-III
A four-stroke cycle engine completes its power cycle in:
A)
One stroke of the piston
B)
Two strokes of the piston
C)
Three strokes of the piston
D)
Four strokes of the piston
Option D is correct: Four strokes of the piston.
Motor Vehicle Inspector • 2025 • Paper-III
The worm and roller mechanism is mainly used in:
A)
Racing cars
B)
Off-road bikes
C)
Commercial vehicles
D)
Electric scooters
Option C is correct: Commercial vehicles.
Motor Vehicle Inspector • 2025 • Paper-III
A good suspension should provide:
A)
Harsh ride
B)
Maximum noise
C)
Comfort and road holding
D)
Minimum ground clearance
Option C is correct: Comfort and road holding.
Motor Vehicle Inspector • 2025 • Paper-III
Hydraulic power steering uses:
A)
Air pressure
B)
Electrical power
C)
Hydraulic fluid pressure
D)
Exhaust gas
Option C is correct: Hydraulic fluid pressure.
Motor Vehicle Inspector • 2025 • Paper-III
Bonnet covers:
A)
Passenger roof
B)
Engine compartment
C)
Gearbox only
D)
Luggage compartment
Option B is correct: Engine compartment.
Motor Vehicle Inspector • 2025 • Paper-III
Single plate clutch is used in:
A)
Heavy tractors only
B)
Cars and light trucks
C)
Scooters only
D)
Cycles
Option B is correct: Cars and light trucks.
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.
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
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
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
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
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
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
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 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
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
Ackermann linkage is generally used in:
A)
Heavy trucks
B)
Two-wheelers
C)
Passenger cars
D)
Airplanes
Option C is correct: Passenger cars.
