Motor Vehicle Inspector • 2025 • Paper-II (General Knowledge)
Which sector contributed the highest share to India’s Gross Value Added (GVA) in 2023-24 according to the latest Economic Survey?
A)
Agricultural and allied sectors
B)
Manufacturing
C)
Services
D)
Trade & Commerce
Option C is correct: Services.
Motor Vehicle Inspector • 2025 • Paper-II (General Knowledge)
Which planet is known as the Red Planet?
A)
Venus
B)
Mars
C)
Jupiter
D)
Saturn
Option B is correct: Mars.
Motor Vehicle Inspector • 2025 • Paper-IV
The main advantage of radial tyres over cross ply tyres is:
A)
Lower mileage
B)
Better fuel economy and grip
C)
Higher rolling resistance
D)
Poor cornering stability
Option B is correct: Better fuel economy and grip.
Motor Vehicle Inspector • 2025 • Paper-IV
Air hydraulic brakes combine features of:
A)
Hydraulic and electric systems
B)
Hydraulic and cable systems
C)
Air and hydraulic systems
D)
Disc and drum brakes
Option C is correct: Air and hydraulic systems.
Motor Vehicle Inspector • 2025 • Paper-IV
Conventional chassis frame is usually made from:
A)
Cast iron
B)
Mild steel channel sections
C)
Stainless steel tubes
D)
Aluminium alloy
Option B is correct: Mild steel channel sections.
Motor Vehicle Inspector • 2025 • Paper-IV
A ‘spongy’ brake pedal in hydraulics is usually caused by:
A)
Excess fluid pressure
B)
Air in brake lines
C)
Sticking brake shoes
D)
High friction coefficient of lining
Option B is correct: Air in brake lines.
Motor Vehicle Inspector • 2025 • Paper-IV
In disc brakes, the braking force is applied by:
A)
Brake pads pressing on a rotating disc
B)
Brake shoes pressing on a drum
C)
Hydraulic oil pressing on a belt
D)
Springs compressing a flywheel
Option A is correct: Brake pads pressing on a rotating disc.
Motor Vehicle Inspector • 2025 • Paper-IV
In the magneto ignition system, electricity is generated by:
A)
Battery only
B)
Generator
C)
Permanent magnets and coils
D)
Alternator
Option C is correct: Permanent magnets and coils.
Motor Vehicle Inspector • 2025 • Paper-IV
Water-cooled engines are preferred in:
A)
Low-speed motorcycles
B)
High-performance or heavy-duty vehicles
C)
Pedal bicycles
D)
Manual transmission systems
Option B is correct: High-performance or heavy-duty vehicles.
Motor Vehicle Inspector • 2025 • Paper-IV
The main purpose of a brake in an automobile is to:
A)
Reduce engine vibration
B)
Convert kinetic energy into heat energy
C)
Increase tyre grip on wet roads
D)
Control fuel consumption
Option B is correct: Convert kinetic energy into heat energy.
Motor Vehicle Inspector • 2025 • Paper-IV
Lubrication also helps in:
A)
Sealing combustion gases
B)
Increasing octane number
C)
Boosting tyre grip
D)
Reducing crankshaft length
Option A is correct: Sealing combustion gases.
Motor Vehicle Inspector • 2025 • Paper-IV
Tubular frame is commonly found in:
A)
Racing cars and motorcycles
B)
Heavy duty buses
C)
Multi axle trucks
D)
Tractors
Option A is correct: Racing cars and motorcycles.
Motor Vehicle Inspector • 2025 • Paper-IV
The main function of a carburettor is to:
A)
Supply lubricating oil to the engine
B)
Mix fuel and air in proper ratio before entering the engine
C)
Cool the engine
D)
Supply fuel directly to the combustion chamber
Option B is correct: Mix fuel and air in proper ratio before entering the engine.
Motor Vehicle Inspector • 2025 • Paper-IV
Water cooled engines are preferred in cars because they:
A)
Weigh less
B)
Operate more quietly and evenly
C)
Are cheaper to manufacture
D)
Need no radiator
Option B is correct: Operate more quietly and evenly.
Motor Vehicle Inspector • 2025 • Paper-IV
Main function of a chassis frame:
A)
Provide shape to the body
B)
Support and carry load of engine, passengers, goods
C)
Protect electrical system
D)
Control lubricant flow
Option B is correct: Support and carry load of engine, passengers, goods.
Motor Vehicle Inspector • 2025 • Paper-IV
Dwell in ignition systems refers to:
A)
Distance between spark plug electrodes
B)
Angle/time contact points remain closed
C)
Period between two sparks in the same cylinder
D)
Duration of combustion in cylinder
Option B is correct: Angle/time contact points remain closed.
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
In a simple carburettor, the air-fuel ratio is controlled by:
A)
Spark plug
B)
Float chamber
C)
Throttle valve
D)
Radiator
Option C is correct: Throttle valve.
Motor Vehicle Inspector • 2025 • Paper-IV
Thermostat valve starts opening at about:
A)
50 °C
B)
65 °C
C)
80 °C
D)
95 °C
Option C is correct: 80 °C.
Motor Vehicle Inspector • 2025 • Paper-IV
Which of the following components is found only in water-cooled systems?
A)
Cylinder fins
B)
Radiator
C)
Spark plug
D)
Piston
Option B is correct: Radiator.
Motor Vehicle Inspector • 2025 • Paper-IV
High viscosity index means:
A)
Large change with temp
B)
Small change with temp
C)
Low boiling point
D)
Poor film strength
Option B is correct: Small change with temp.
Motor Vehicle Inspector • 2025 • Paper-IV
The capacity of a battery is usually expressed in:
A)
Watts
B)
Volts
C)
Ampere-hours (Ah)
D)
Horsepower
Option C is correct: Ampere-hours (Ah).
Motor Vehicle Inspector • 2025 • Paper-IV
The main purpose of a dynamo or alternator in a vehicle is to:
A)
Control speed
B)
Start the engine
C)
Generate electricity to charge the battery and power electrical components
D)
Supply fuel to the engine
Option C is correct: Generate electricity to charge the battery and power electrical components.
Motor Vehicle Inspector • 2025 • Paper-IV
The calorific value of gasoline is about:
A)
45 J/kg
B)
45 kJ/kg
C)
45 MJ/kg
D)
45 GJ/kg
Option C is correct: 45 MJ/kg.
Motor Vehicle Inspector • 2025 • Paper-IV
The most commonly used dynamometer due to its simplicity is:
A)
Prony brake type
B)
Hydraulic type
C)
Swinging field type
D)
Eddy current type
Option A is correct: Prony brake type.
