IC Engines and Nuclear Power Plants MCQ with Answers

IC Engines and Nuclear Power Plants MCQ with Answers

56) The delay period in compression ignition engines depends upon

Answer is:

all of the above

57) Lubrication in I.C. engines dissipates the heat generated from the moving parts due to friction.

Answer is:

Right

58) The ratio of the heat equivalent to one kW hour to the heat in fuel per B.P. hour is termed as brake thermal efficiency.

Answer is:

Yes

59) The theoretically correct mixture of air and petrol is

Answer is:

15:1

Explanation:

The ideal (theoretical) air-fuel ratio, for a complete combustion, is called stoichiometric air-fuel ratio. For a gasoline (petrol) engine, the stoichiometric air-fuel ratio is around 14.7:1. This means that, in order to burn completely 1 kg of fuel, we need 14.7 kg of air.

The theoretically correct mixture of air and petrol is

60) In qualitative governing, the quantity of fuel is varied to suit the load on the engine and the total charge of air is altered.

Answer is:

56) The delay period in compression ignition engines depends upon

all of the above

57) Lubrication in I.C. engines dissipates the heat generated from the moving parts due to friction.

Right

58) The ratio of the heat equivalent to one kW hour to the heat in fuel per B.P. hour is termed as brake thermal efficiency.

Yes

59) The theoretically correct mixture of air and petrol is

15:1

60) In qualitative governing, the quantity of fuel is varied to suit the load on the engine and the total charge of air is altered.

Incorrect