Open cycle gas turbine works on___________________?

A. Brayton or atkinson cycle
B rAnkine cycle
C. Carnot cycle
D. Erricsson cycle

The work ratio of simple gas turbine cycle depends on_________________?

A. Pressure ratio
B. Maximum cycle temperature
C. Minimum cycle temperature
D. All of the above

The vloumetric efficiency of compressor with increase in compression ratio will ___________________?

A. Increase
B. Decrease
C. Remain same
D. May increase/decrease depending on clearance volume

Axial flow compressor resembles____________________ ?

A. Centrifugal pump
B. Reciprocating pump
C. Turbine
D. Sliding vane compressor

Atmospheric pressure is 1.03 kg/cm and vapour pressure is 0.03 kg/cm . The air pressure will be_____________________ ?

A. 1.03 kg/cm2
B. 1.06 kg/cm2
C. 1.00 kg/cm2
D. 0.53 kg/cm2

Axial flow compressor has the following advantage over centrifugal compressor__________________?

A. Larger air handling ability per unit frontal area
B. Higher pressure ratio per stage
C. Aerofoil blades are used
D. Higher average velocities

Maximum delivery pressure is a rotary air compressor is of the order of__________________?

A. 6 kg/cm2
B. 10 kg/cm2
C. 16 kg/cm2
D. 25 kg/cm2

The thermodynamic efficiency of rotary compressor is based on_______________?

A. Isothermal compression
B. Adiabatic compression
C. Isentropic compression
D. Polytropic compression

Surging is the phenomenon of___________________?

A. Air stream blocking the passage
B. Motion of air at sonic velocity
C. Unsteady, periodic and reversed flow
D. Air stream not able to follow the blade contour

The maximum compression ratio in an actual single stage axial flow comperssor is of the order of________________?

A. 1 : 1.2
B. 1 : 2
C. 1 : 5
D. 1 : 10