Motor Vehicle Inspector • 2025 • Paper-IV
In warm climates, antifreeze is added mainly to:
A)
Reduce coolant cost
B)
Improve heat transfer
C)
Prevent corrosion and scale
D)
Increase coolant density
Option C is correct: Prevent corrosion and scale.
Motor Vehicle Inspector • 2025 • Paper-IV
Mechanical brakes are generally operated by:
A)
Ropes
B)
Cables, rods and linkages
C)
Hydraulic pipes
D)
Electric motors
Option B is correct: Cables, rods and linkages.
Motor Vehicle Inspector • 2025 • Paper-III
Reversibility of the steering system allows:
A)
Self-centering of the steering wheel
B)
High steering effort
C)
Constant speed at turns
D)
More wheel alignment
Option A is correct: Self-centering of the steering wheel.
Motor Vehicle Inspector • 2025 • Paper-III
Hydrocarbon emission is due to:
A)
Engine overcooling
B)
Incomplete combustion
C)
Fuel filter blockage
D)
High humidity
Option B is correct: Incomplete combustion.
Motor Vehicle Inspector • 2025 • Paper-III
Fuel in diesel engines ignites due to:
A)
Glow plug spark
B)
Heat of compression
C)
External flame
D)
Spark plug
Option B is correct: Heat of compression.
Motor Vehicle Inspector • 2025 • Paper-III
A valve timing diagram shows:
A)
Load vs rpm
B)
Fuel consumption vs speed
C)
Temperature vs pressure
D)
Valve events vs crank position
Option D is correct: Valve events vs crank position.
Motor Vehicle Inspector • 2025 • Paper-III
Hydraulic shock absorbers work by:
A)
Forcing oil through orifices
B)
Electrical coil action
C)
Compressing air
D)
Bending leaf spring
Option A is correct: Forcing oil through orifices.
Motor Vehicle Inspector • 2025 • Paper-III
A 4×4 vehicle indicates:
A)
Four-wheel steering
B)
Four-wheel drive
C)
Four-wheel braking
D)
Four-piston engine
Option B is correct: Four-wheel drive.
Motor Vehicle Inspector • 2025 • Paper-III
Hydroelastic suspension uses:
A)
Leaf only
B)
Steel only
C)
Air only
D)
Rubber and fluid
Option D is correct: Rubber and fluid.
Motor Vehicle Inspector • 2025 • Paper-III
Ground clearance affects:
A)
Engine colour
B)
Ride height and ability to clear obstacles
C)
Fuel grade
D)
Horn efficiency
Option B is correct: Ride height and ability to clear obstacles.
Motor Vehicle Inspector • 2025 • Paper-III
An automobile is best defined as:
A)
A cycle with motor assist
B)
A road vehicle driven by its own engine
C)
A rail vehicle
D)
A tracked vehicle
Option B is correct: A road vehicle driven by its own engine.
Motor Vehicle Inspector • 2025 • Paper-III
Kingpin inclination affects:
A)
Steering effort
B)
Brake balance
C)
Ride height
D)
Tyre pressure
Option A is correct: Steering effort.
Motor Vehicle Inspector • 2025 • Paper-III
Additional garage equipment includes:
A)
Hydraulic jack, air compressor
B)
Filing cabinet
C)
Fountain pen
D)
Fan heater
Option A is correct: Hydraulic jack, air compressor.
Motor Vehicle Inspector • 2025 • Paper-III
SUV stands for:
A)
Sports Utility Vehicle
B)
Super Utility Van
C)
Special Urban Vehicle
D)
Speed Utility Vehicle
Option A is correct: Sports Utility Vehicle.
Motor Vehicle Inspector • 2025 • Paper-III
A light commercial vehicle has capacity:
A)
Less than 500/ kg
B)
Above 16 tonnes
C)
Below 7.5 tonnes
D)
Above 25 tonnes
Option C is correct: Below 7.5 tonnes.
Motor Vehicle Inspector • 2025 • Paper-III
Vehicle classification by load capacity includes:
A)
Steering type
B)
Colour
C)
Light, medium, heavy vehicles
D)
Passenger only
Option C is correct: Light, medium, heavy vehicles.
Motor Vehicle Inspector • 2025 • Paper-III
CNG, diesel, and electric are types of classification based on:
A)
Ignition system
B)
Emission control
C)
Fuel used
D)
Engine cooling
Option C is correct: Fuel used.
Motor Vehicle Inspector • 2025 • Paper-III
In an automatic gearbox, what replaces the function of the clutch?
A)
Planetary gears
B)
Synchronizer ring
C)
Torque converter
D)
Clutch pedal
Option C is correct: Torque converter.
Motor Vehicle Inspector • 2025 • Paper-III
What is the primary purpose of the gearbox casing?
A)
Increase gear speed
B)
House and protect internal components
C)
Control fuel-air mixture
D)
Increase compression ratio
Option B is correct: House and protect internal components.
Motor Vehicle Inspector • 2025 • Paper-III
Drag link connects:
A)
Steering arm to wheel rim
B)
Knuckle to axle beam
C)
Hub to brake shoe
D)
Pitman arm to steering arm
Option D is correct: Pitman arm to steering arm.
Motor Vehicle Inspector • 2025 • Paper-III
A positive camber means:
A)
Top of the wheels tilt inward
B)
Bottom of the wheels tilt outward
C)
Top of the wheels tilt outward
D)
Both wheels are perfectly vertical
Option C is correct: Top of the wheels tilt outward.
Motor Vehicle Inspector • 2025 • Paper-III
Crown wheel is part of:
A)
Differential
B)
Brake
C)
Clutch
D)
Gearbox
Option A is correct: Differential.
Motor Vehicle Inspector • 2025 • Paper-III
Air suspension uses:
A)
Oil only
B)
Steam
C)
Water
D)
Compressed air as spring medium
Option D is correct: Compressed air as spring medium.
Motor Vehicle Inspector • 2025 • Paper-III
Independent front suspension is commonly used in:
A)
Tractors
B)
Motorcycles
C)
Passenger cars
D)
Heavy-duty trucks only
Option C is correct: Passenger cars.
Motor Vehicle Inspector • 2025 • Paper-III
In the front engine, rear-wheel drive (FR) layout, the engine is located at the:
A)
Rear, and drives the front wheels
B)
Front, and drives the rear wheels
C)
Middle, and drives all wheels
D)
Rear, and drives the rear wheels
Option B is correct: Front, and drives the rear wheels.
