- (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
Mechanical Engineering Mcqs
- (A) pressure coefficient
- (B) work coefficient
- (C) polytropic reaction
- (D) slip factor
- (E) compressor efficiency
- (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) increase
- (B) decrease
- (C) remain unaffected
- (D) may increase/decrease depending on compressor clearance
- (E) none of the above
- (A) lower power consumption per unit of air delivered
- (B) higher volumetric efficiency
- (C) decreased discharge temperature
- (D) moisture free air
- (E) all of the above
- (A) N.T.P. conditions
- (B) intake temperature and pressure conditions
- (C) 0°C and 1 kg/cm2
- (D) 20°C and 1 kg/cm2
- (E) none of the above
- (A) 0.1%
- (B) 0.5%
- (C) 1.0%
- (D) 5%
- (E) 10%.
- (A) start-stop motor
- (B) constant speed unloader
- (C) relief valve
- (D) variable speed
- (E) none of the above
- (A) compressor efficiency
- (B) isentropic efficiency
- (C) Euler’s efficiency
- (D) pressure coefficient
- (E) pressure ratio
- (A) slip factor
- (B) velocity factor
- (C) velocity coefficient
- (D) blade effectiveness
