Ammonia and water vapour
Carbon dioxide
Nitrogen
Hydrogen
A. Ammonia and water vapour
Decrease
Increase
Remain same
Does not change
Centrifugal type
Axial flow type
Radial flow type
None of these
High thermal efficiency
Reduction in compressor work
Decrease of heat loss in exhaust
Maximum work output
p₂ = p₁ × p₃
p₂ = p₁/p₃
p₂ = p₁ × p₂
p₂ = p₃/p₁
Diffuser inlet radius
Diffuser outlet radius
Impeller inlet radius
Impeller outlet radius
Before the intercooler
After the intercooler
Between the aftercooler and receiver
Before first stage suction
1.03 kg/cm²
1.06 kg/cm²
1.00 kg/cm²
0.53 kg/cm²
Low speeds
High speeds
Low altitudes
High altitudes
Gas turbine
4-stroke petrol engine
4-stroke diesel engine
Multi cylinder engine
N.T.P. conditions
Intake temperature and pressure conditions
0°C and 1 kg/cm²
20°C and 1 kg/cm²
Throttle control
Clearance control
Blow off control
Any one of the above
It has high propulsive efficiency at high speeds
It can fly at supersonic speeds
It can fly at high elevations
It has high power for take off
To supply base load requirements
To supply peak load requirements
To enable start thermal power plant
In emergency
One adiabatic, two isobaric, and one constant volume
Two adiabatic and two isobaric
Two adiabatic, one isobaric and one constant volume
One adiabatic, one isobaric and two constant volumes
Has no effect on
Decreases
Increases
None of these
Pressure ratio
Maximum cycle temperature
Minimum cycle temperature
All of the above
Temperature during compression remains constant
No heat leaves or enters the compressor cylinder during compression
Temperature rise follows a linear relationship
Work done is maximum
Equal to
Less than
Greater than
None of these
10 bar
20 bar
30 bar
50 bar
Isothermal
Isentropic
Adiabatic
Isochoric
Increases thermal efficiency
Allows high compression ratio
Decreases heat loss is exhaust
Allows operation at very high altitudes
Same
One-half
One fourth
One sixth
One adiabatic, two isobaric, and one constant volume
Two adiabatic and two isobaric
Two adiabatic, one isobaric and one constant volume
One adiabatic, one isobaric and two constant volumes
Centrifugal compressor
Axial compressor
Pumps
All of the above
The reciprocating compressors are best suited for high pressure and low volume capacity
The effect of clearance volume on power consumption is negligible for the same volume of discharge
Both (A) and (B)
None of these
Increases power output
Improves thermal efficiency
Reduces exhaust temperature
Do not damage turbine blades
Ratio of shaft output of the air motor to the shaft input to the compressor
Ratio of shaft input to the compressor to the shaft output of air motor
Product of shaft output of air motor and shaft input to the compressor
None of the above
200°C
500°C
700°C
1000°C
Heated
Compressed air before entering the combustion chamber is heated
Bled gas from turbine is heated and readmitted for complete expansion
Exhaust gases drive the compressor
Electric motor
Engine
Either (A) or (B)
None of these