Mechanical Engineering Questions And Answers :: Compressors: part3



Mechanical Engineering : Compressors QUESTIONS AND ANSWERS :: part3 : 21 to 25

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

21.The thermodynamic efficiency of rotary compressor is based on

isothermal compression
adiabatic compression
isentropic compression
polytropic compression
none of the above.

22.Which is false statement about advantages of multistage compressor in comparison to single stage compressor

less power requirement
better mechanical balance
less loss of air due to leakage past the cylinder
more effective lubrication
lower volumetric efficiency.

23.The advantage of multistage compression over single stage compression is

lower power consumption per unit of air delivered
higher volumetric efficiency
decreased discharge temperature
moisture free air
all of the above.

24.A centrifugal compressor works on the principle of

conversion of pressure energy into kinetic energy
conversion of kinetic energy into pres�sure energy
centripetal action
generating pressure directly
combination of (a) and (d).

More Compressors QUESTIONS AND ANSWERS available in next pages

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