INTERNAL COMBUSTION ENGINES QUIZ

In petrol engines, the delay period is of the order of

0.004 second

0.002 second

0.003 second

0.001 second

TRUE ANSWER : ?
YOUR ANSWER : ?

In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.

Equal to

None of these

Above

Below

TRUE ANSWER : ?
YOUR ANSWER : ?

If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the

Engine starts overheating

Exhaust will be smoky

Scavenging occurs

Piston rings would stick into piston grooves

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is more viscous lube oil?

SEA 30

SAE 80

SAE 70

SAE 50

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following fuel has little tendency towards detonation?

Normal heptane

Iso-octane

Alcohol

Benzene

TRUE ANSWER : ?
YOUR ANSWER : ?

A 75 cc engine has following parameter as 75 cc

Swept volume

Lube oil capacity

Fuel tank capacity

Cylinder volume

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is false statement?

Formation of hard coating on piston skirts

Detonation

Piston ring and cylinder wear

Oil sludge in the engine crank case

TRUE ANSWER : ?
YOUR ANSWER : ?

The operation of forcing additional air under pressure in the engine cylinder is known as

Turbulence

Pre-ignition

Scavenging

Supercharging

TRUE ANSWER : ?
YOUR ANSWER : ?

Iso-octane (Câ‚ˆHâ‚â‚ˆ) has octane number of

50

120

100

TRUE ANSWER : ?
YOUR ANSWER : ?

Stoichiometric ratio is

Actual air-fuel ratio for maximum efficiency

None of these

Chemically correct air-fuel ratio by volume

Chemically correct air-fuel ratio by weight

TRUE ANSWER : ?
YOUR ANSWER : ?

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