Yes
No
✅ The correct answer is option A.
Compressors
The mass of gas turbine per kW developed is about __________ as that of an I.C. engine.
same
one-half
one-fourth
one-sixth
✅ The correct answer is option D.
A 3 m3/min compressor means that it
compresses 3 m3/min of standard air
compresses 3 m3/ min of free air
delivers 3 m3/ min of compressed air
delivers 3 m3/ min of
✅ The correct answer is option B.
The pressure ratio in a centrifugal compressor can be increased by increasing the tip speed and lowering the inlet temperature.
Correct
Incorrect
✅ The correct answer is option A.
A compressor must be driven by some prime mover.
Agree
Disagree
✅ The correct answer is option A.
In a single stage, single acting reciprocating air compressor without clearance volume, the workdone is maximum during
isothermal compression
isentropic compression
polytropic compression
none of these
✅ The correct answer is option B.
The operation of the reciprocating air motor is similar to reciprocating air compressor.
TRUE
FALSE
✅ The correct answer is option B.
The clearance, in a single stage, single acting reciprocating air compressor does not effect the workdone on the air and the power required for compressing the air.
TRUE
FALSE
✅ The correct answer is option A.
In a gas turbine, air is obtained from the atmosphere and compressed in an air compressor.
TRUE
FALSE
✅ The correct answer is option A.
In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs at
diffuser inlet radius
diffuser outlet radius
impeller inlet radius
impeller outlet radius
✅ The correct answer is option B.