Centrifugal pump
Reciprocating pump
Turbine
Sliding vane compressor
C. Turbine
Increase of work ratio
Decrease of thermal efficiency
Decrease of work ratio
Both (A) and (B) above
Has no effect on
Decreases
Increases
None of these
Radial flow compressor
Axial flow compressor
Roots blower
Reciprocating compressor
Same
Lower
Higher
None of these
Large quantity of air at high pressure
Small quantity of air at high pressure
Small quantity of air at low pressure
Large quantity of air at low pressure
A propeller system
Gas turbine engine equipped with a propulsive nozzle and diffuse
Chemical rocket engine
Ramjet engine
Top side of main
Bottom side of main
Left side of main
Right side of main
Ammonia and water vapour
Carbon dioxide
Nitrogen
Hydrogen
Gas turbine uses low air-fuel ratio to economise on fuel
Gas turbine uses high air-fuel ratio to reduce outgoing temperature
Gas turbine uses low air-fuel ratio to develop the high thrust required
All of the above
Atmosphere
Vacuum
Discharge nozzle
Back to the compressor
Isothermal H.P/indicated H.R
Isothermal H.P./shaft H.R
Total output/air input
Compression work/motor input
Air stream blocking the passage
Motion of air at sonic velocity
Unsteady periodic and reversed flow
Air stream not able to follow the blade contour
7 : 1
15 : 1
30 : 1
50 : 1.
It is inefficient
It is bulky
It requires cooling water for its operation
None of the above
High h.p. and low weight
Low weight and small frontal area
Small frontal area and high h.p.
High speed and high h.p
Pressure ratio
Maximum cycle temperature
Minimum cycle temperature
All of the above
Start-stop motor
Constant speed unloader
Relief valve
Variable speed
Same
More
Less
Depends on other factors
Mass
Energy
Flow
Linear momentum
Same
More
Less
Zero
Carnot cycle
Rankine cycle
Ericsson cycle
Joule cycle
Increases
Decreases
Remain unaffected
May increase or decrease depending on compressor capacity
Poppet valve
Mechanical valve of the Corliss, sleeve, rotary or semi rotary type
Disc or feather type
Any of the above
Compressor capacity
Compression ratio
Compressor efficiency
Mean effective pressure
Compressor efficiency
Isothermal efficiency
Volumetric efficiency
Mechanical efficiency
Isothermal
Polytropic
Isentropic
Any one of these
Toughness
Fatigue
Creep
Corrosion resistance
Thrust power and fuel energy
Engine output and propulsive power
Propulsive power and fuel input
Thrust power and propulsive power
r -1
1 - r -1
1 - (1/r) -1/
1 - (1/r) /-1
Turbojet engine
Ramjet engine
Propellers
Rockets