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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