Related Questions

In a single stage, single acting reciprocating air compressor, without clearance volume, the work-done is minimum during
A Isothermal compression
B Isentropic compression
C Polytropic compression
D None of these
In a single stage, single acting reciprocating air compressor without clearance volume, the work-done is maximum during
A Isothermal compression
B Isentropic compression
C Polytropic compression
D None of these
In a single acting reciprocating air compressor, without clearance, the compression of air may be
A Isothermal
B Polytropic
C Isentropic
D Any one of these
The net work input required for compressor with increase in clearance volume
A Increases
B Decreases
C Remains same
D Increases/decreases depending on compressor capacity
Volumetric efficiency of a compressor without clearance volume
A Increases with increase in compression ratio
B Decreases with increase in compression ratio
C Is not dependent upon compression ratio
D May increase/decrease depending on compressor capacity
Volumetric efficiency of a compressor with clearance volume
A Increases with increase in compression ratio
B Decreases with increase in compression ratio
C In not dependent upon compression ratio
D May increase/decrease depending on compressor capacity
A large clearance volume in a reciprocating compressor results in
A Reduced volume flow rate
B Increased volume flow rate
C Lower suction pressure
D Lower delivery pressure
If the clearance ratio for a reciprocating air compressor is 'K', then its volumetric efficiency is given by
A $$1 - {\text{K}} + {\text{K}}{\left( {\frac{{{{\text{p}}_1}}}{{{{\text{p}}_2}}}} \right)^{\frac{1}{{\text{n}}}}}$$
B $$1 + {\text{K}} - {\text{K}}{\left( {\frac{{{{\text{p}}_2}}}{{{{\text{p}}_1}}}} \right)^{\frac{1}{{\text{n}}}}}$$
C $$1 - {\text{K}} + {\text{K}}{\left( {\frac{{{{\text{p}}_1}}}{{{{\text{p}}_2}}}} \right)^{\frac{{{\text{n}} - 1}}{{\text{n}}}}}$$
D $$1 + {\text{K}} - {\text{K}}{\left( {\frac{{{{\text{p}}_2}}}{{{{\text{p}}_1}}}} \right)^{\frac{{{\text{n}} - 1}}{{\text{n}}}}}$$
An ideal air compressor cycle without clearance on P-V diagram can be represented by following processes
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 volumes
An ideal air compressor cycle with clearance on P-V diagram can be represented by following processes
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 volumes

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