Steam Boilers - Interview Questions | Exam2Win

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136. Heating of dry steam above saturation temperature is known as

A. enthalpy

B. superheating

C. supersaturation

D. latent heat

E. super tempering.

Explanation:

137. Cochran boiler is a

A. horizontal fire-tube boiler

B. horizontal water-tube boiler

C. veritcal water-tube boiler

D. vertical fire tube boiler

E. forced circulating boiler.

Explanation:

138. The change in internal energy in steam engines equals to

A. work done during the rankine cycle ;

B. work done during compression.

C. work done during adiabatic expansion

D. change in enthalpy

E. none of the above.

Explanation:

139. Which of the following gases has the highest calorific value

A. producer gas

B. coal gas.

C. water gas

D. blast furnace gas

E. coke oven gas.

Explanation:

140. The biggest size of thermal power unit operating in India is

A. 30 MW

B. 60 MW

C. 100 MW

D. 210 MW

E. 500 MW.

Explanation: