D₁/D₂ = (p₁ p₃)1/2
D₁/D₂ = (p₁/p₃)1/4
D₁/D₂ = (p₁ p₃)1/4
D₁/D₂ = (p₃/p₁)1/4
D. D₁/D₂ = (p₃/p₁)1/4
D₁/D₂ = p₁ p₂
D₁/D₂ = p₁/p₂
D₁/D₂ = p₂/p₁
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
Collect more air
Convert kinetic energy of air into pressure energy
Provide robust structure
Beautify the shape
Indicated power
Brake power
Frictional power
None of these
Increase velocity
Make the flow streamline
Convert pressure energy into kinetic energy
Convert kinetic energy into pressure energy
Equal to
Less than
More than
None of these
Centrifugal type
Axial flow type
Radial flow type
None of these
p₂ = p₁ × p₃
p₂ = p₁/p₃
p₂ = p₁ × p₂
p₂ = p₃/p₁
Same
Higher
Lower
Dependent on other factors
Remain same
Decrease
Increase
None of the above
A propeller system
Gas turbine engine equipped with a propulsive nozzle and diffuse
Chemical rocket engine
Ramjet engine
Atmosphere
Vacuum
Discharge nozzle
Back to the compressor
Equal to
Less than
Greater than
None of these
Net work output and work done by turbine
Net work output and heat supplied
Work done by turbine and heat supplied
Work done by turbine and net work output
Increases the thermal efficiency
Increases the compressor work
Increases the turbine work
Decreases the thermal efficiency
Employing intercooler
By constantly cooling the cylinder
By running compressor at very slow speed
By insulating the cylinder
It is inefficient
It is bulky
It requires cooling water for its operation
None of the above
Compressor pressure ratio
Highest pressure to exhaust pressure
Inlet pressure to exhaust pressure
Pressures across the turbine
Carbonisation of coal
Passing steam over incandescent coke
Passing air and a large amount of steam over waste coal at about 65°C
Partial combustion of coal, eke, anthracite coal or charcoal in a mixed air steam blast
Less power requirement
Better mechanical balance
Less loss of air due to leakage past the cylinder
Lower volumetric efficiency
0.1 bar and 20°C
1 bar and 20°C
0.1 bar and 40°C
1 bar and 40°C
Gas turbine plant
Petrol engine
Diesel engine
Solar plant
r -1
1 - r -1
1 - (1/r) -1/
1 - (1/r) /-1
Isothermal compression
Isentropic compression
Polytropic compression
None of these
10 to 40 %
40 to 60 %
60 to 70 %
70 to 90 %
Same
Less
More
None of these
In two phases
In three phases
In a single phase
In the form of air and water mixture
Carnot cycle
Rankine cycle
Ericsson cycle
Joule cycle
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
Remove impurities from air
Reduce volume of air
Cause moisture and oil vapour to drop out
Cool the air