100+ Mechanical Engineering Turbo Machines MCQ Questions and Answers - 1

Question: 1

The source of power for driving a turbocharger is

(A) air motor

(B) electric motor

(C) chemical energy of exhaust gases

(D) kinetic energy of exhaust gases from the engine

Ans: D

kinetic energy of exhaust gases from the engine

Question: 2

The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called

(A) diagram efficiency

(B) blade efficiency

(C) velocity ratio

(D) slip factor

Ans: D

slip factor

Question: 3

In a hot wire anemometer, the rate of heat loss from sensing element is a function of

(A) velocity of flow

(B) pressure

(C) mass rate of flow

(D) none of the above

Ans: A

velocity of flow

Question: 4

Which gas turbine has least weight per unit power developed?

(A) closed cycle gas turbine

(B) open cycle gas turbine with intercooling, reheating and regeneration

(C) open cycle gas turbine with intercooling and reheating

(D) simple open cycle gas turbine

Ans: D

simple open cycle gas turbine

Question: 5

In which of the following heat exchanger, heat is extracted from air?

(A) combustion chamber

(B) intercooler

(C) reheater

(D) regenerator

Ans: B

intercooler

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