IC Engines - Interview Questions | Exam2Win

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86. A 5 BHP engine running at full load would consume diesel of the order of

A. 0.3 kg/hr

B. 1 kg/hr

C. 3 kg/hr

D. 5 kg/hr

E. 10 kg/hr.

Explanation:

87. The theoretically correct air fuel ratio for petrol engine is of the order of

A. 6 : 1

B. 9 : 1

C. 12 : 1

D. 15 : 1

E. 20 : 1.

Explanation:

88. In a naturally aspirated diesel engine, the air is supplied by

A. a supercharger

B. a centrifugal blower

C. a vacuum chamber

D. an injection tube

E. forced chamber

Explanation:

89. If the compression ratio of an engine working on Otto cycle is increased from 5 to 7, the %age increase in efficiency will be

A. 2%

B. 4%

C. 8%

D. 14%

E. 27%.

Explanation:

90. For the same power developed in I.C. engines, the cheaper system is

A. naturally aspirated

B. supercharged

C. centrifugal pump

D. turbo charger

E. none of the above.

Explanation: