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Current Affairs January 2024

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Which part of the automobile tyre is subjected to greatest flexing action?

A. Bead

B. Side wall

C. Shoulder

D. Tread

Correct Answer :

B. Side wall


Related Questions

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The basic purpose of a four wheel drive (4WD) system is that it

A. Delivers improved cornering on dry road surfaces

B. Eliminates the need of snow tyres, tyre chains, etc.

C. Ensures effective transmission of engine torque to all four wheels, even on slippery road surfaces

D. Ensures that effective braking can be performed, even on slippery surfaces

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An overinflated tyre will wear the tread most near the

A. Edges

B. Corners

C. Centre

D. None of these

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4

The function of antilock brake system (ABS) is that is

A. Reduces the stopping distance

B. Minimises the brake fade

C. Maintains directional control during braking by preventing the wheels from locking

D. Prevents nose dives during braking and thereby postpones locking of the wheels

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4

The function of positive crankcase ventilation (PCV) system is that it

A. Mixes fuel with air

B. Promotes combustion by creating a swirling movement in the air-fuel mixture

C. Returns blow by gases from the crankcase to the intake system

D. Feeds blow by gases to the exhaust manifold

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4

When the top of the wheel is tilted outward, then it is called

A. Positive camber

B. Negative camber

C. Positive caster

D. Negative caster

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4

The gear shift lever requires two separate motions to shift gears, and the first movement

A. Moves the synchronizer

B. Selects the synchronizer

C. Meshes the gears

D. Operates the clutch

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In order to implement gear changes in the gear unit of an automatic transmission, a ________ is used.

A. Synchronizer

B. Planetary gear

C. Magnetic clutch

D. Hydraulic multi plate clutch

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4

The parking brakes employed in vehicles are operated

A. Mechanically

B. Hydraulically

C. Pneumatically

D. None of these

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In radial tyres

A. One ply layer runs diagonally one way and another layer runs diagonally the other way

B. All plies run parallel to one another and vertical to tyre bead

C. Inner tubes are always used

D. None of these

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4

Caster is a

A. Forward tilt of the kingpin

B. Backward tilt of the kingpin

C. Either 'A' or 'B'

D. None of these

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4

The combustion process in a Diesel engine is a

A. Constant volume process

B. Constant pressure process

C. Constant temperature process

D. Adiabatic process

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4

The heat transfer from coolant to air in the radiator of an automobile engine takes place by

A. Radiation only

B. Convention only

C. Convection and radiation

D. Conduction, convection and radiation

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4

With the increase of battery temperature, the specific gravity of electrolyte

A. Increases

B. Decreases

C. Remains the same

D. None of these

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4

The correct way to rectify an imbalanced wheel is to

A. Adjust the tyre pressure

B. Rotate the tyres

C. Adjust the damper spring tension

D. Attach appropriate weights to the wheel at appropriate positions

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If the spark plug deposit indicates black coating of soot, it indicates that the engine has been generally operating on

A. Too lean mixture

B. Stoichiometric mixture

C. Most economical mixture

D. Too rich mixture

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The caster is called positive when the top of the king pin is inclined to the

A. Rear of the vehicle

B. Front of the vehicle

C. Left of the vehicle

D. Right of the vehicle

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The function of a radiator fan in the cooling system is that

A. It blows air through the radiator when necessary

B. It is turned by wind force as the vehicle moves forward, and its rotation drives the water pump

C. It cools the engine by blowing air onto the cylinder block

D. It draws heat out of the engine compartment

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Vulcanizing means

A. Heating rubber under pressure

B. Spraying with special paint

C. Melting rubber while stirring it

D. None of these

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The process of supplying the intake air to the engine cylinder at a pressure greater than the pressure of the surrounding atmosphere is known as

A. Supercharging

B. Auto ignition

C. Scavenging

D. Detonation

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4

The component that is responsible for converting the rotation of the steering wheel into lateral motion is the

A. Steering wheel

B. Steering shaft

C. Steering gearbox

D. Tie rod

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4

The Diesel engines are also known as

A. Spark ignition (S.I.) engines

B. Compression ignition (C.I.) engines

C. Steam engines

D. None of these

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The auto ignition in a spark ignition engine means

A. Automatic ignition of the charge at the end of compression

B. Ignition induced by the passage of a spark

C. Ignition of the charge before the passage of flame front

D. Ignition induced to supplement the process of normal combustion

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4

The rating of C.I. engine fuel (Diesel) is given by

A. Octane number

B. Performance number

C. Cetane number

D. None of these

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4

The basic purpose of providing caster angle on wheels is to

A. Prevent uneven tyre wear

B. Maintain directional control

C. Bring the road contact of the tyre under the point of load

D. Compensate for wear in the steering linkage

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4

The self ignition temperature of Diesel as compared to petrol is

A. Higher

B. Lower

C. Same

D. Depends on fuel quality

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Bead wires are made of

A. Steel

B. Copper

C. Zinc

D. Aluminium

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4

The purpose of a thermostat in an engine cooling system is to

A. Prevent the coolant from boiling

B. Allow the engine to warm up quickly

C. Indicate the coolant temperature

D. Pressurise the system to raise the boiling point

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4

The component of the oil filter that prevents the passage of metal particles and sludge is

A. Element

B. Relief valve

C. Check valve

D. Case

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4

Which of the following oil is more viscous?

A. SAE 30

B. SAE 40

C. SAE 70

D. SAE 80

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Which of the following is not an automobile?

A. Motor cycle

B. Passenger car

C. Aeroplane

D. Truck