INTERNAL COMBUSTION ENGINES QUIZ

The ratio of the indicated thermal efficiency to the air standard efficiency is known as

Relative efficiency

Mechanical efficiency

Volumetric efficiency

Overall efficiency

TRUE ANSWER : ?
YOUR ANSWER : ?

The air-fuel ratio of the petrol engine is controlled by

Governor

Fuel pump

Injector

Carburettor

TRUE ANSWER : ?
YOUR ANSWER : ?

The octane number of petrol, generally available, is

80 to 100

40 to 60

20 to 40

60 to 80

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following statement is correct regarding normal cetane?

Its chemical name is normal hexadecane

All of these

It has long carbon chain structure

It is a standard fuel used for knock rating of diesel engines

TRUE ANSWER : ?
YOUR ANSWER : ?

The magneto in an automobile is basically

Magnetic circuit

Transformer

Capacitor

D.C. generator

TRUE ANSWER : ?
YOUR ANSWER : ?

The specific fuel consumption per BHP hour for diesel engine is approximately

0.15 kg

0.3 kg

0.25 kg

0.2 kg

TRUE ANSWER : ?
YOUR ANSWER : ?

Thermal efficiency of a two stroke cycle engine is ___ a four stroke cycle engine.

Less than

Equal to

Greater than

None of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

A hydraulic ram is a device used to

To lift small quantity of water to a greater height when a large quantity of water is available at a smaller height

To lift water from deep wells

Store the energy of water

Increase the pressure of water

TRUE ANSWER : ?
YOUR ANSWER : ?

The theoretically correct mixture of air and petrol is

20 : 1

10 : 1

25 : 1

15 : 1

TRUE ANSWER : ?
YOUR ANSWER : ?

The pressure at the end of compression in the case of diesel engine is of the order of

12 kg/cm

20 kg/cm

6 kg/cm

35 kg/cm

TRUE ANSWER : ?
YOUR ANSWER : ?