Internal Combustion Engines (I.C. Engines) MCQ Questions & Answers | Mechanical Engineering

A. Prevent sparking across the gap between the points

B. Cause more rapid break of the primary current, giving a higher voltage in the secondary circuit

C. Both (A) and (B)

D. None of the above

A. 5 - 10 kg/cm²

B. 20 - 25 kg/cm²

C. 60 - 80 kg/cm²

D. 90 - 130 kg/cm²

A. Same

B. Lower

C. Higher

D. None of these

A. Compression ratio for petrol engines varies from 6 to 10

B. Higher compression ratio in diesel engines results in higher pressures

C. Petrol engines work on Otto cycle

D. All of the above

A. Fuel used

B. Speed of engine

C. Compression ratio

D. None of these

A. Air used for combustion sent under pressure

B. Forced air for cooling cylinder

C. Burnt air containing products of combustion

D. Air used for forcing burnt gases out of engine's cylinder during the exhaust period

A. Low power will be produced

B. Efficiency will be low

C. Higher knocking will occur

D. Black smoke will be produced

A. kcal

B. kcal/kg

C. kcal/m²

D. kcal/m³

A. 6 to 10

B. 10 to 15

C. 15 to 25

D. 25 to 40

A. 6 to 10

B. 10 to 15

C. 15 to 25

D. 25 to 40