Category: Compressors, Gas Turbines and Jet Engines

A. volume of air inhaled at working conditions
B. volume of air inhaled at N.T.P. conditions
C. volume at 0°C and 1 kg/cm2
D. volume at 20°C and 1 kg/cm2
E. none of the above

A. mild steel
B. stainless steel
C. carbon steel
D. high alloy seel
E. high nicket alloy (neimonic)

A. 2500°C
B. 2000°C
C. 1500°C
D. 1000°C
E. 700°C

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

A. 10: 1
B. 15: 1
C. 20 : 1
D. 60 : 1
E. 100 :

A. 50%
B. 75%
C. 85%
D. 90%
E. 99%

A. Brayton or Atkinson cycle
B. Carnot cycle
C. Rankine cycle
D. Erricsson cycle
E. Joule cycle

A. conversion of pressure energy into kinetic energy
B. conversion of kinetic energy into pres¬sure energy
C. centripetal action
D. generating pressure directly
E. combination of A. and D.

A. jet velocity
B. twice the jet velocity
C. half the jet velocity
D. average of the jet velocity
E. no such co-relationship with jet velocity exists

A. low.er heating value
B. higher heating value
C. heating value
D. higher calorific value
E. highest calorific value