- (A) the ratio of stroke volume to clearance volume
- (B) the ratio of the air actually delivered to the amount of piston displacement
- (C) reciprocal of compression ratio
- (D) index of compressor performance
- (E) proportional to compression ratio
Mechanical Engineering Mcqs
- (A) increases with increase in compression ratio
- (B) decreases with increase in compression ratio
- (C) is not dependent upon compressin ratio
- (D) may increase/decrease depending on compressor capacity
- (E) unpredictable
- (A) 20-30%
- (B) 40-50%
- (C) 60-70%
- (D) 70-90%
- (E) 90-100%
- (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
- (A) mechanical efficiency
- (B) volumetric efficiency
- (C) isothermal efficiency
- (D) adiabatic efficiency
- (E) relative efficiency
- (A) radial flow
- (B) axial flow
- (C) centrifugal
- (D) combination of above
- (E) none of the above
- (A) ideal compression
- (B) adiabatic compression
- (C) botii isothermal and adiabatic compression
- (D) isentropic compression
- (E) isothermal compression
- (A) one adiabatic, two isobaric, and one constant volume
- (B) two adiabatic and two isobaric
- (C) two adiabatic, one isobaric and one constant volume,
- (D) one adiabatic, one isobaric and two constant volume
- (E) two isobaric, two adiabatic and one constant volume
- (A) 1
- (B) 1.2 ,
- (C) 1.3
- (D) 1.4
- (E) 1.5
- (A) These are used to dampen pulsations ,
- (B) These act as reservoir to- take care of sudden demands
- (C) These increase compressor efficiency
- (D) These knock out some oil and moisture
- (E) These reduce frequent on/off operation of compressors
