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Current Affairs January 2024

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4

Which of the following parameter can be adjusted by modifying the tie rod attachment length?

A. Camber

B. Caster

C. Toe

D. Steering gear ratio

Correct Answer :

C. Toe


Related Questions

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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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4

The power source for a brake booster is

A. Exhaust manifold pressure

B. Electricity

C. The pressure difference between the atmospheric pressure and the vacuum pressure in the intake manifold

D. Hydraulic pump

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4

The crankshaft of a typical inline four cylinder engine has ________ balance weights.

A. 12

B. 4

C. 16

D. 8

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4

The exhaust gas from petrol engine contains

A. Petrol vapours

B. Water vapours

C. Carbon monoxide

D. All of these

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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

The main function of an exhaust muffler is the

A. Optimisation of exhaust efficiency

B. Reduction of exhaust noise

C. Reduction of nitrogen oxide in the exhaust gases

D. Reduction of the exhaust gas volume

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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

The most commonly used supplementary restraint system (SRS) component is

A. Seat belt

B. Brake

C. Airbag

D. Steering

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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 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

If the engine coolant leaks into the engine oil, then engine oil

A. Appears milky

B. Become foamy

C. Turns black

D. None of these

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4

The number of exhaust manifolds in a V6 engine is

A. One

B. Two

C. Four

D. Eight

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4

A petrol engine of a car develops 125 Nm torque at 2700 r.p.m. The car is driven in second gear having gear ratio of 1.75. The final drive ratio is 4.11. If the overall transmission efficiency is 90%, then the torque available at the driving wheels is

A. 8.091 Nm

B. 80.91 Nm

C. 809.1 Nm

D. 8091 Nm

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4

When turning a corner

A. The front wheels are toeing out

B. The front wheels are turning on different angles

C. The inside front wheels has a greater angle than the outside wheel

D. All of the above

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4

In case of a Diesel car, the pressure at the end of compression is of the order of

A. 15 bar

B. 25 bar

C. 35 bar

D. 45 bar

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4

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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4

In a four speed four stroke Diesel engine, the intake valve

A. Opens at T.D.C. and closes at B.D.C.

B. Opens at 20° before T.D.C. and closes at 35° after B.D.C.

C. Opens at 10° after T.D.C. and closes at 20° before B.D.C.

D. None of the above

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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 main task of a battery in automobiles is to

A. Supply electricity to the alternator

B. Act as a reservoir or stabilizer of electricity

C. Supply electricity to the vehicle's electrical system at all times while the engine is running

D. Supply a large amount of power to turn the starter motor when the engine is being started

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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

The reconditioning process used to give cylinder bore surfaces a crosshatch pattern, is known as

A. Honing

B. Porous plating

C. Boring

D. Shot peening

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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 function of a proportioning control valve (PCV) in a brake system is to

A. Ensure that equal pressure is supplied to the front and rear brakes throughout every braking operation

B. Reduce the brake fluid pressure when the brakes approach their lockup point

C. Cause less brake fluid pressure to act on the front brakes than on the rear brakes when the fluid pressure exceeds a predetermined level

D. Cause less brake fluid pressure to act on the rear brakes than on the front brakes when the fluid pressure exceeds a predetermined level.

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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

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

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

The engine oil viscosity is defined by _________ ratings.

A. Automatic transmission fluid (ATF)

B. Society of automotive engineers (SAE)

C. Gross vehicle weight (GVW)

D. American petroleum institute (API)

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4

In a ventilated disc brake

A. A duct directs air towards the caliper for cooling while the vehicle is moving

B. Caliper is covered with cooling fins

C. Disc contains many small holes for optimum cooling performance

D. Disc contains radial vanes between its rubbing surfaces for optimum cooling performance

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4

The discharged lead acid battery has on its plates

A. Lead peroxide (PbO₂)

B. Spongy lead (Pb)

C. Lead sulphate (PbSO₄)

D. Sulphuric acid (H₂SO₄)