IC Engines - Interview Questions | Exam2Win

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36. Which of the following medium is compressed in a Diesel engine cylinder

A. air aione

B. air and fuel

C. air and lub oil

D. fuel alone

E. air, fuel and lub oil.

Explanation:

37. For the same compression ratio

A. Otto cycle is more efficient than the Diesel

B. Diesel cycle is more efficient'than Otto

C. both Otto and Diesel cycles are, equally efficient

D. compression ratio has nothing to do with efficiency

E. which is more efficient would depend on engine capacity.

Explanation:

38. When crude oil is heated, then which of the following hydrocarbon is given off first.

A. kerosene

B. gasoline

C. paraffin

D. diesel

E. natural gas.

Explanation:

39. Most high speed compression engines operate on

A. Diesel cycle

B. Otto cycle

C. Dual combustion cycle

D. Special type of air cycle

E. Carnot cycle.

Explanation:

40. As a result of detonation in an I.C. engine, following parameter attains very high value

A. peak pressure

B. rate of rise of pressure

C. rate of rise of temperature

D. peak temperature

E. rate of rise of horse-power.

Explanation: