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4

In aluminium cylinder blocks, the cylinder liners are made of

A. Aluminium

B. Ceramic

C. Brass

D. Cast iron

Correct Answer :

D. Cast iron


Related Questions

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4

The connecting rod lower end is connected to the relevant ________ of crankshaft.

A. Big end

B. Crank arm

C. Journal

D. Small end

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4

The Diesel engine works on

A. Otto cycle

B. Carnot cycle

C. Diesel cycle

D. Rankine cycle

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4

The minimum parking brake force is generally ________ of gross vehicle mass (GVM).

A. 5 %

B. 10 %

C. 15 %

D. 20 %

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4

The purpose of adding pigment to the paint is that it

A. Optimises the viscosity of paint

B. Makes paint film hard

C. Gives colour and filling up effect to the paint

D. None of the above

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4

The function of a second ring is that it is a

A. Back up compression ring which will work in place of the top ring when it is broken

B. Compression ring and aids the top ring in sealing and cooling

C. Back up oil control ring which will work in place of the bottom ring when it is broken

D. Cushion ring which prevents piston slap and knock

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4

The mechanical efficiency (ηm) of an I.C. engine is equal to (where I.P. = Indicated power, B.P. = Brake power and F.P. = Frictional power)

A. I.P/B.P.

B. B.P/I.P.

C. B.P/F.P.

D. F.P/B.P.

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4

The major purpose of an electronically controlled automatic transmission is that this type of transmission

A. Eliminates gear clutches

B. Eliminates the gear shaft lever

C. Reduces the number of automatic transmission components

D. Reduces shift shock and achieves more efficient transmission of engine torque

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4

The firing order for an inline four cylinder I.C. engine is

A. 1-2-3-4

B. 1-3-4-2

C. 1-2-4-3

D. 1-3-2-4

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4

A clutch is usually designed to transmit maximum torque which is

A. Equal to the maximum engine torque

B. 80 % of the maximum engine torque

C. 150 % of the maximum engine torque

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

The main function of a resonator is that it

A. Regulates the intake air flow rate

B. Reduces the intake air noise

C. Enhances intake efficiency

D. Regulates the intake air temperature

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4

If clearance volume of I.C. engines is increased, the compression ratio will

A. Increase

B. Decrease

C. Remain constant

D. Be doubled

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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 most commonly used power plant in automobiles is

A. Gas turbine

B. I.C. engine

C. Battery

D. None of these

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4

The main function of the tread pattern on tyre is that

A. The tread grooves pass air between the tyre and road surface, thereby preventing tyre from overheating

B. The crests between the tread grooves absorb road noise

C. In wet conditions, the tread grooves expel water that is drawn between the tyre and road surface

D. The tread pattern protects the tyre's inner carcass from small stones and pieces of glass

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4

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 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 braking control type traction control system (TCS) generally operates in the speed range of

A. Less than 20 kmph

B. Less than 40 kmph

C. Less than 60 kmph

D. More than 60 kmph

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4

The main characteristics of a maintenance free (MF) battery is that

A. A maintenance free battery requires little maintenance during normal use and it is sufficient to add water instead of an electrolyte containing sulphuric acid

B. A maintenance free battery has a relatively short shelf life when compared with standard batteries

C. Since it is sealed, the water in maintenance free battery is not lost through evaporation thus accordingly it is not necessary to top up the cells with water

D. Recharging of a maintenance free battery is neither required nor possible

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4

A front stabilizer bar is used to

A. Increase vehicle load carrying capacity

B. Provide a softer ride

C. Control suspension movement and body roll

D. All of the above

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4

Cushioning springs in clutch plate reduces

A. Vehicle speed

B. Torsional vibrations

C. Jerky starts

D. None of these

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4

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

The specific gravity of Diesel is about

A. 0.65

B. 0.75

C. 0.85

D. 0.95

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4

During braking, the brake shoe is moved outward to force the lining against the

A. Wheel piston or cylinder

B. Anchor pin

C. Brake drum

D. Wheel rim or axle

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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 camshaft of a four stroke Diesel engine running at 1000 rpm will run at

A. 500 rpm

B. 1000 rpm

C. 2000 rpm

D. 4000 rpm

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4

The torque available at the contact between driving wheels and road is known as

A. Brake effort

B. Tractive effort

C. Clutch effort

D. None of these

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4

The basic function of the suspension is to

A. Absorbs vibration and impact forces from the road surface

B. Ensure that the steering wheel can deliver a suitable amount of steering force

C. Ensure that wheel alignment is not disturbed during driving

D. Automatically correct the effects of over steering

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4

The power actually developed inside the engine cylinder is called as

A. Indicated power

B. Brake power

C. Frictional power

D. None of these

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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