1000+ Power Plant Engineering MCQ Questions and Answers - 1

Question: 1

Heating wet steam at constant temperature is heating it at constant

(A) entropy

(B) enthalpy

(C) volume

(D) pressure

Ans: D

pressure

Question: 2

Maximum energy loss in a boiler occurs due to

(A) radiation losses

(B) flue gases

(C) unburnt carbon in ash

(D) incomplete combustion

Ans: B

flue gases

Question: 3

The compounding of steam turbines is done to

(A) increase blade speed ratio

(B) reduce axial thrust

(C) reduce turbine speed

(D) improve efficiency

Ans: C

reduce turbine speed

Question: 4

The specific volume of steam with increase in pressure decreases

(A) inversely

(B) rapidly first and then slowly

(C) slowly first and then rapidly

(D) linearly

Ans: B

rapidly first and then slowly

Question: 5

Hygrometry deals with the

(A) density measurement

(B) pressure of air

(C) watervapour in air

(D) temperature of air

Ans: C

watervapour in air

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