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Current Affairs January 2024

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4

Incorrect steering axis inclination (S.A.I.) causes

A. Tendency to assume toe-out orientation

B. Generation of a braking effect at tight corners

C. Poor recovery of the steering wheel after making a turn

D. The vehicle to pull to the side of lesser inclination

Correct Answer :

C. Poor recovery of the steering wheel after making a turn


Related Questions

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4

The difference between DOT 3 and DOT 4 brake fluids is

A. DOT 4 fluids have a higher boiling point than DOT 3 fluid

B. DOT 4 fluids have a lower boiling point than DOT 3 fluid

C. DOT 3 and DOT 4 fluids have the same boiling point, but DOT 4 fluid has a longer service life

D. DOT 4 fluid is more resistant to freezing than DOT 3 fluid

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4

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

A. Bead

B. Side wall

C. Shoulder

D. Tread

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4

The valve tappet clearance is measured by

A. Screw pitch gauge

B. Engineering scale

C. Feeler gauge

D. Vernier caliper

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4

The main function of intake manifold is that it

A. Promotes the mixture of air and fuel

B. Reduces intake noise

C. Cools the intake air to a suitable temperature

D. Distributes intake air equally to the cylinders

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4

The temperature at which tyre inflation pressure should be checked is

A. 20°C

B. 25°C

C. 35°C

D. Ambient temperature

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4

In a Diesel engine, the fuel is ignited by

A. An electric spark

B. The heat of compression

C. The hot exhaust

D. None of these

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4

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

A basic difference between the spark ignition engine and the Diesel engine is that the

A. Diesel engine compresses air alone instead of an air-fuel mixture

B. Air temperature ignites the fuel in the Diesel engine

C. Fuel is sprayed into the combustion chamber in the Diesel engine as the piston nears T.D.C. on the compression stroke

D. All of the above

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4

The vehicle ride will be comfortable if

A. Unsprung mass is kept minimum

B. Sprang mass is kept minimum

C. Vehicle mass is kept minimum

D. All of these

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4

The connecting rods are generally made of ________ shaped crosssection.

A. I

B. C

C. L

D. H

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4

If the air-fuel mixture ignites before the spark takes place at spark plug, the condition is called

A. Detonation

B. Ignition

C. Pre-ignition

D. Rumble

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4

The service brakes employed in cars are generally operated

A. Mechanically

B. Hydraulically

C. Pneumatically

D. None of these

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4

When the piston is at T.D.C, the volume above the piston in the combustion chamber is the

A. Clearance volume

B. Cylinder volume

C. Exhaust volume

D. None of these

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4

The air gap between the central electrode and ground (or side) electrode of a spark plug is around

A. 0.2 mm

B. 0.5 mm

C. 1 mm

D. 1.5 mm

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4

The damper fluid leakage typically occur from

A. Upper damper mounting

B. Bottom of damper

C. Clearance between inner and outer tubes of damper

D. Coil spring mounting

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4

The octane rating of petrol commercially available is

A. 85-95

B. 95-100

C. 100-110

D. 110-125

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4

The brake pedal during ABS operation

A. Is pushed upward forcefully

B. Pedal stroke becomes longer

C. Transmits slight kickback to the driver's foot

D. All of the above

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4

The main function of the brake fluid is

A. Lubrication

B. Power transmission

C. Cooling

D. None of these

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4

The size of engine cylinder is referred in terms of its

A. Diameter and bore

B. Displacement and efficiency

C. Bore and stroke

D. Bore and length

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4

Damper in an automobile is used to

A. Absorb the energy

B. Dissipate the energy

C. Release the energy

D. Increase the energy

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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 function of an oil control orifice is that it

A. Returns cylinder head lubricating oil to the oil pan at high speed

B. Turns oil into fine mist for spray lubrication

C. Regulates the pressure of engine oil supplied by the oil pump for the lubrication of cylinder head mechanism and other purposes

D. Removes impurities from cylinder head lubricating oil

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4

The aluminium alloy is used in cylinder blocks because

A. It is lighter and has good heat dissipation characteristics

B. Material cost is low

C. It does not require any cylinder liners

D. The piston is also made of aluminium alloy

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4

Thinner is added to the paint in order to

A. Make pigments and resin mix easily

B. Make paint film hard

C. Optimise its viscosity

D. None of these

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4

The driveshafts are connected to the differential and wheel hubs through universal joints because the universal joints

A. Absorb the vibrations transferred from the surface of the road

B. Compensate for variations in the relative positions of the differential and the wheels which result from bumpy road surfaces or other similar driving conditions.

C. Absorb any difference in speed between the left and right wheels when the vehicle is turning

D. None of the above

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4

The rigid suspension is beneficial when

A. It is desired to reduce the unsprung mass

B. It is desired to have more flexibility in design

C. It is desired to improve tyre to ground contact characteristics

D. Large changes in load make it necessary to have a large suspension stroke

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4

The two kinds of piston rings are

A. Compression and oil control rings

B. Compression and sliding seal rings

C. Oil scrapper and oil control rings

D. Pressure and sealing rings

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4

A battery can be charged by

A. Adding distilled water

B. Adding sulphuric acid

C. Applying voltage in the reverse direction to that of charging

D. Applying a voltage in the same direction to that of charging

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4

In an engine, the temperature of the piston will be more at the

A. Crown of the piston

B. Skirt of the piston

C. Piston walls

D. Piston rings

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4

The acid used in automobile battery is

A. Hydrochloric acid

B. Hydrofluoric acid

C. Nitric acid

D. Sulphuric acid