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Current Affairs January 2024

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4

The starting system includes

A. A battery, a starter, and an ignition switch

B. A battery, a distributor, and an ignition switch

C. A battery, a starter, and a distributor

D. A distributor, a starter, and an ignition switch

Correct Answer :

A. A battery, a starter, and an ignition switch


Related Questions

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The basic part of the engine, to which the other engine parts are attached or assembled is the

A. Cylinder head

B. Crankshaft

C. Cylinder block

D. Oil pan

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The information provided by the oxygen (O₂) sensor to the feedback control system is about the

A. Air-fuel ratio

B. Air temperature

C. Air flow speed

D. Exhaust gas volume

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4

The ball joints are used on the tie rod ends, because they

A. Reduce the amount of noise generated

B. Reduce the amount of sliding resistance

C. Can deal with movement of the suspension both vertically and in other directions

D. Improve the force transmission speed

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The connecting rod is attached to the piston by the

A. Cap bolt

B. Piston pin

C. Cap roller bearing

D. Rod cap

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The lower cylindrical portion of the piston which improves piston cooling performance is called

A. Piston crown

B. Connecting rod

C. Piston pin boss

D. Piston skirt

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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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In a Diesel engine, the function of a fuel injector is to

A. Mix the fuel and air

B. Ignite the air-fuel mixture

C. Provide flame front for ignition

D. Spray atomized fuel in the cylinder

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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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An underinflated tyre will wear the tread most

A. Near the centre

B. Near the edges

C. In the lateral direction

D. In the cross direction

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In a four cylinder inline engine, the number of firing strokes in one revolution of the crank is

A. 1

B. 2

C. 3

D. 4

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The positive plates of a lead acid battery has

A. Lead peroxide (PbO₂)

B. Spongy lead (Pb)

C. Lead sulphate (PbSO₄)

D. Sulphuric acid (H₂SO₄)

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The capacity of a battery is usually expressed in terms of

A. Volts

B. Amperes

C. Weight

D. Ampere hours

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The compression ratio of a petrol engine is nearly

A. 4 : 1

B. 8 : 1

C. 15 : 1

D. 20 : 1

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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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An engine has a clearance volume of 100 cm³ and a swept volume of 800 cm³. The compression ratio is

A. 7 : 1

B. 8 : 1

C. 9 : 1

D. 10 : 1

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An imbalance wheel during vehicle operation

A. Makes large noise when its heavy point hits the road surface

B. Deflects in the vehicle's longitudinal direction

C. Bounces vertically or deflects from side to side (as seen from front or rear)

D. Creates a standing wave

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The rolling resistance is because of the friction between the

A. Wheel rim and tyre

B. Tyre and the road surface

C. Wheel rim and road surface

D. None of these

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The advantage of having a tandem master cylinder arrangement in automobiles is that it

A. Enhances safety by serving two independent lines in a divided line brake circuit

B. Enhances safety by activating the brakes using vacuum pressure in the event of brake fluid loss

C. Supplies equal fluid pressure to each line of a divided line brake circuit, thereby preventing the brakes from dragging on one side

D. Boosts the brake fluid pressure to reduce the force required to depress the brake pedal

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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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The purpose of a balancer shaft is to

A. Balance the timing in the movement of the two groups of pistons

B. Increase inertia force of the rotating crankshaft

C. Reduce vibrations caused by the crankshaft rotation

D. Adjusts the timing of the intake and exhaust valve openings

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The main cause for the change in engine oil viscosity is

A. Humidity

B. Temperature

C. Vibration

D. Contamination

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The engine oil level should be checked

A. Immediately after the ignition switch is turned off

B. While the engine is running

C. A few minutes after the ignition switch is turned off

D. While the engine is running at high idle speed

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4

In comparison with a radial tyre, one advantage of a bias ply tyre is

A. Longer life

B. Lower rolling resistance

C. Smoother ride at low speeds

D. None of these

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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 sequence in which the force is transmitted through a brake system when the brake pedal is depressed is

A. Brake pedal, master cylinder, brake lines, vacuum servo mechanism, brake pads

B. Brake pedal, vacuum servo mechanism, master cylinder, brake lines, brake pads

C. Brake pedal, master cylinder, vacuum servo mechanism, brake lines, brake pads

D. Brake pedal, brake lines, vacuum servo mechanism, master cylinder, brake pads

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

A. 12

B. 4

C. 16

D. 8

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The component that connects the steering rack to the knuckles is

A. Tie rod

B. Sector gear

C. Pivot

D. Spline

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In a square type engine

A. Geometrical shape is square

B. Diameter and length of piston are same

C. Two cylinders are placed horizontal and two vertical

D. Stroke length and cylinder bore are same

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It is necessary to maintain the valve clearances as they

A. Reduce the resistance to sliding that occurs between the cam and the tappet

B. Allow for lengthening of the valves owing to the heat of combustion

C. Increase the speed at which the valves move up and down

D. Make the crankshaft turn smoothly

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4

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