Isothermal compression though most efficient, but is not -practicable because_________________?

Related Mcqs:

Cylinder clearance in a compressor should be _________________?

A. as large as possible B. as small as possible C. about 50% of swept volume D. about 100% of swept volume 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...

Pick up the correct statement ?

A. gas turbine uses low air-fuel ratio to economise on fuel B. gas turhine uses high air-fuel ratio to reduce outgoing temperature C. gas turbine uses low air-fuel ratio to develop the high thrust required D. all of the above E. none of the above...

Ram compression in turbojet involves____________________?

A. reduction of speed of incoming air and conversion of part of it into pressure energy B. compression of inlet air C. increasing speed of incoming air D. lost work E. leakage losses...

Ram-jet engine__________________?

A. is self-operating at zero flight speed B. is not self-operating at zero^flight speed C. requires no air for its operation D. produces a jet consisting of plasma E. none of the above...