Critical pressure for steam is
A.185.85 kg/cm2
B.212.55 kg/cm2
C.225.65 kg/cm2
D.245.55 kg/cm2
Category: Turbo machines Mcqs
In a hot wire anemometer the rate of heat loss from sensing element is a function of
A.pressure
B.mass rate of flow
C.velocity of flow
D.none of the above
When working substance is released through nozzles, the direction of reaction will be
A.clockwise
B.counter clockwise
C.either of (A) and (B) above
D.direction depends on other design features
Gas turbines are taken to
A.the gasoline and diesel engines in its working medium
B.the petrol and diesel engines in its internal combustion
C.the steam turbine in its aspect of steady flow of the working medium
D.All of the above
Which of the following preferred for supercharging of internal combustion engines?
A.Roots blower
B.Axial flow compressor
C.Sliding vane type compressor
D.Reciprocating compressor
A diffuser is used to
A.increase velocity and decrease pressure
B.increase velocity as well as pressure
C.decrease velocity and increase pressure
D.decrease velocity as well as pressure
Normal standard of compression for rotary compressor is
A.adiabatic compression
B.polytropic compression
C.isentropic compression
D.constant pressure compression
De Laval turbine is used for applications requiring
A.High power, high speed
B.High power, low speed
C.Low power, high speed
D.Low power, low speed
E.Low speed
In a gas turbine combined cycle plant, a waste heat boiler is used to
A.heat air from intercooler
B.gases from regenerator
C.recover heat form exhaust gases
D.none of the above
Maximum delivery pressure in case of rotary compressors is usually restricted to
A.2 atmospheres
B.5 atmospheres
C.10 atmospheres
D.20 atmospheres
