1. cohesion pressure is negligible
2. cohesion pressure is decreased
3. cohesion pressure is increased
4. there is no cohesion pressure
cohesion pressure is increased
1. less power requirement
2. better mechanical balance
3. less loss of air due to leakage past the cylinder
4. lower volumetric efficiency
lower volumetric efficiency
1. pressure coefficient
2. work coefficient
3. poly tropic reaction
4. slip factor
pressure coefficient
1. isentropic compression
2. isothermal compression
3. poly tropic compression
4. any one of the above
isentropic compression
1. centrifugal
2. reciprocating
3. axial
4. screw
reciprocating
1. work done in first stage should be more
2. work done in subsequent stages should increase
3. work done in subsequent stages should decrease
4. work done in all stages should be equal
work done in all stages should be equal
1. increase
2. decrease
3. remain unaffected
4. other factors control it
increase
1. increase velocity
2. make the flow stream-line
3. convert pressure energy into kinetic energy
4. convert kinetic energy into pressure energy
convert kinetic energy into pressure energy
1. Boyle's law
2. Archimedes principle
3. Pascal's law
4. Newton's formula
Pascal's law
1. compressor efficiency
2. isentropic efficiency
3. Euler's efficiency
4. None of the above
Euler's efficiency