The air- fuel ratio employed in a gas turbines is

Question

Direction: Each of the next consists of two statements, one labeled as the ‘Assertion (A)’ and the other as carefully and select the answers to these item using the codes given below:

Codes:

1. Both A and R are individually true and R is the correct explanation of A
2. Bothe A and R are individually true but R is not the correct explanation of A
3. A is true but R is false
4. A is false but R is true

Assertion (A): The air- fuel ratio employed in a gas turbines is around 60:1.

Reason (R): A  lean mixture of 60:1 in a gas turbine is mainly used for complete combustion.