Turbomachines Quiz | Turbomachines Short Questions and Answers
Questions
42
Which of the following is/are example/s of rotary displacement pumps?
Answer: All of the above
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44
The mass flow rate of air compressed in axial flow compressor is _____________centrifugal compressor.
Answer: higher than
45
Which of the following is NOT a type of rotary compressor?
Answer: None of the above
46
Which compressors are suitable for large volume flow rates of above 1200 m3/min
Answer: Axial flow compressors
47
The function of _________ is to convert high kinetic energy of gases into pressure energy.
Answer: diffuser
48
How is the variation of air velocity while passing through impeller followed by diffuser in centrifugal compressor?
Answer: Air velocity increases in impeller and then decreases in diffuser
49
A pair of fixed blade and rotor blade in axial flow compressor is called as _________.
Answer: stage
50
An axial flow compressors have _______.
Answer: a drum type rotor or a disc type rotor
53
Which component of fluid velocity is responsible for transmission of power through rotodynamic machine?
Answer: Tangential
55
What is the head of water available at turbine inlet in hydro-electric power plant called?
Answer: net head
56
Gross head is the difference between __________.
Answer: head race and tail race
57
What is runaway speed of the runner of Pelton wheel?
Answer: maximum unsafe speed of the runner due to sudden decrease in load on turbine
58
The gates of aerofoil section in between the outer and inner ring of guide wheel are called as ________.
Answer: guide vanes
59
Which of the following components of reaction turbine increases the head on the turbine by an amount equal to the height of runner outlet above the tail race?
Answer: Draft tube
60
As the reaction turbine works on the principle of impulse and reaction, it follows the law of ________.
Answer: angular momentum
