Q. Atmospheric pressure is 1.03 kg/cm and vapour pressure is 0.03 kg/cm . The air pressure will be
✅ Correct Answer: (C)
1.00 kg/cm^2
Compressors MCQs | Page - 3
Dear candidates you will find MCQ questions of Compressors here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. Axial flow compressor has the following advantage over centrifugal compressor
✅ Correct Answer: (A)
larger air handling ability per unit frontal area
Q. Choose the correct statement
✅ Correct Answer: (B)
gas turbine is capable of rapid start up and loading
Q. Clearance volume in actual reciprocating compressors is essential
✅ Correct Answer: (D)
to provide cushioning effect and also to avoid mechanical bang of piston with cylinder head.
Q. Compression efficiency is compared against
✅ Correct Answer: (D)
isothermal compression
Q. Cylinder clearance in a compressor should be
✅ Correct Answer: (B)
as small as possible
Q. Diffuser in a compressor is used to
✅ Correct Answer: (D)
convert kinetic energy into pressure energy
Q. During base load operation, the best method of controlling compressor is
✅ Correct Answer: (A)
start-stop motor
Q. During peak load periods, the best method of controlling compressors is
✅ Correct Answer: (B)
constant speed unloader
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