Mechanical Engineering Questions And Answers :: Compressors: part2



Mechanical Engineering : Compressors QUESTIONS AND ANSWERS :: part2 : 6 to 10

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

6.In multistage compressor, the isothermal compression is achieved by

employing intercooler
by constantly cooling the cylinder
by running compressor at very slow speed
by insulating the cylinder
none of the above.

7.Which is false statement about air receivers

These are used to dampen pulsations ,
These act as reservoir to- take care of sudden demands
These increase compressor efficiency
These knock out some oil and moisture
These reduce frequent on/off operation of compressors.

8.A compressor at high altitude will draw

more power
less power
same power
more/less power depending on other factors
none of the above.

9.Volumetric efficiency of air compressors is of the order of

20-30%
40-50%
60-70%
70-90%
90-100%.

10.The area of actual indicator diagram on an air compressor as compared to area of ideal indicator diagram is

less
more
same
more/less depending on compressor capacity
unpredictable.

More Compressors QUESTIONS AND ANSWERS available in next pages

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