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.Management Sciences
A. temperature during compression remains constant
B. no heat leaves or enters the compressor cylinder during cornpression
C. temperature rise follows a linear relationship
D. work done is maximum
E. entropy decreases
Related Mcqs:
- Isothermal compression though most efficient, but is not -practicable because_________________?
- A. ityrequires very big cylinder B. it does not increase pressure much C. it is impossible in practice D. compressor has to run at very slow speed to achieve it E. it requires cylinder to be placed in water...
- During peak load periods, the best method of controlling compressors is___________________?
- A. start-stop motor B. constant speed unloader C. relief valve D. variable speed E. none of the above...
- The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called__________________?
- A. slip factor B. velocity factor C. velocity coefficient D. blade effectiveness...
- The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before entering the compressor is____________________?
- A. heated B. compressed air before entering the combustion chamber is heated C. bled gas from turbine is heated and readmitted for complete expansion D. exhaust gases drive the compressor E. part of exhaust gases are heated and mixed up with atmospheric air to utilise exhaust heat...
- A jet engine works on the principle of conservation of____________________?
- A. mass B. energy C. flow D. linear momentum E. angular momentum...
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