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4

The firing order for an opposed four cylinder l.C. engine is

A. 1-2-3-4

B. 1-3-4-2

C. 1-4-3-2

D. 1-3-2-4

Correct Answer :

C. 1-4-3-2


Related Questions

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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 valve tappet clearance is measured by

A. Screw pitch gauge

B. Engineering scale

C. Feeler gauge

D. Vernier caliper

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4

Petrol that detonates easily is called

A. High octane petrol

B. Low octane petrol

C. Unleaded petrol

D. Blended fuel

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4

The purpose of turning radius gauges is to measure the

A. Contact areas of the tyres

B. Free plays of the steering wheel

C. Turning radius of the left and right wheels

D. Difference in the toe angles of the left and right wheels

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4

The brake warning light warns the driver of

A. Water in the master cylinder

B. Air in the hydraulic system

C. Failure of the primary or secondary circuit of hydraulic system

D. Power brake failure

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4

The included angle is the sum of the

A. Camber and castor

B. Castor and S.A.I.

C. Camber and S.A.I.

D. Camber and toe in

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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

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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4

The oil pump is driven by the

A. Camshaft

B. Alternator shaft

C. Crankshaft via drive belt

D. Crankshaft directly

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4

When the brake pedal free play is less than the specified value, then the

A. Brake drags

B. Brake fades

C. Vapour locking occurs in the brake lines

D. Antilock braking system malfunctions

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4

Damper is also known as

A. Shock absorber

B. Torsion bar

C. Spring

D. Radius rod

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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

The cam shaft in an engine is always mounted

A. Parallel to the crankshaft

B. Perpendicular to the crankshaft

C. Inclined to the crankshaft

D. None of these

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4

The main merit of a multi cylinder type cylinder sleeve is

A. Smaller engine dimensions

B. Better cooling efficiency

C. High rigidity

D. None of these

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4

The condition that causes vapour locking in a brake system is

A. Overheating of the fluid due to frequent brake application

B. Overcooling of the brakes during high speed driving

C. Keeping the vehicle without use for an extended period

D. An excessively high engine speed on a downhill road

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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 lubrication oil flow in an engine is in the order as

A. Oil strainer, oil pump, relief valve, oil filter, cylinder block, cylinder head and oil pan

B. Oil pump, oil strainer, relief valve, oil filter, cylinder block, cylinder head and oil pan

C. Oil strainer, oil filter, relief valve, oil pump, cylinder block, cylinder head and oil pan

D. Oil strainer, oil pump, relief valve, oil filter, cylinder head, cylinder block and oil pan

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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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4

The coefficient of friction for the clutch facing is approximately

A. 0.1

B. 0.4

C. 0.8

D. 1.2

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4

The best fuels for compression ignition engines are

A. Straight chain paraffin

B. Aromatics

C. Branched chain paraffin

D. Naphthalene

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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

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4

In a hydraulic power steering system, the power steering pump is driven by a

A. Belt driven by camshaft

B. Chain driven by crankshaft

C. Belt driven by driveshaft

D. Belt driven by crankshaft

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4

In which of the following conditions, the idle CO percentage should be measured with the vehicle?

A. Headlights and other electrical devices are switched off

B. Headlights and other electrical devices are switched on

C. Headlights and other lights are switched off

D. Headlights are switched on

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4

The maximum torque multiplication ratio in a torque converter is about

A. 2.5

B. 10

C. 25

D. 40

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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

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

In bias ply tyres

A. All plies run parallel to one another

B. Belts of steel mesh are used in the tyres

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

D. All of the above

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4

Which of the following symptom is caused as a result of brake disc run out?

A. Ineffectiveness of the brakes

B. Judder during braking

C. Localized wearing of the brake pads

D. Rapid wearing of the brake pads

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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

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