1. 0.5 kg
2. 1.0 kg
3. 1.3 kg
4. 2.2 kg
1.3 kg
1. temperature during compression remains constant
2. no heat leaves or enters the compressor cylinder during compression
3. temperature rise follows a linear relationship
4. work done is maximum
no heat leaves or enters the compressor cylinder during compression
1. standard air
2. free air
3. compressed air
4. compressed air at delivery pressure
free air
1. isothermal h.p. to the BHP of motor
2. isothermal h.p. to adiabatic h.p.
3. power to drive compressor to isothermal h.p.
4. work to compress air isothermally to work for actual compression
isothermal h.p. to the BHP of motor
1. isothermally
2. adiabatically
3. isentropically
4. isochronically
isothermally
1. isothermal
2. adiabatic
3. polytropic
4. any one of the above
adiabatic
1. atmospheric
2. slightly more than atmospheric
3. slightly less than atmospheric
4. pressure slightly less than atmospheric and temperature slightly more than atmospheric
pressure slightly less than atmospheric and temperature slightly more than atmospheric
1. at very high speed
2. at very slow speed
3. at average speed
4. at zero speed
at very slow speed
1. increases
2. decreases
3. remains unaffected
4. may increase or decrease depending on compressor capacity
increases
1. multi-stage compression
2. cold water spray
3. both(a) and(b) above
4. fully insulating the cylinder
both(a) and(b) above