Category: Compressors, Gas Turbines and Jet Engines

A. directly proportional to clearance volume
B. greatly affected by clearance volume
C. not affected by clearance volume
D. inversely proportional to clearance volume

A. large quantity of air at high pressure
B. small quantity of air at high pressure
C. small quantity of air at low pressure
D. large quantity of air at low pressure
E. any one of the above

A. increases
B. decreases
C. remains same
D. first increases and then decreases
E. first decreases and then increases

A. atmospheric conditions at any specific location
B. 20°C and 1 kg/cm2 and relative humidity 36%
C. 0°C and standard atmospheric conditions
D. 15°C and 1 kg/cm2
E. 25°C, 1 kg/cm2 and RH of 60%.

A. no flow of air
B. fixed mass flow rate regardless of pressure ratio
C. reducing mass flow rate with increase in pressure ratio
D. increased inclination of chord with air steam
E. does not occur

A. low
B. high
C. same
D. low/high depending on make and type
E. unpredictable

A. speed
B. speed
C. altitude
D. Vspeed
E. does not Vary

A. lowest
B. highest
C. anything.
D. atmospheric
E. none of the above

A. 20-30%
B. 40-50%
C. 60-70%
D. 70-90%
E. 90-100%

Isothermal compression efficiency, even when running at high speed, can be approached by using
A. multi-stage compression
B. cold water spray
C. both A. and B. above
D. fully insulating the cylinder
E. high stroke