The ratio of enthalpy rise in rotor of a centrifugal compressor to the enthalpy rise in stage is called
A.Volumetric efficiency
B.Adiabatic efficiency
C.Degree of reaction
D.Static pressure ratio
E.Dynamic pressure ratio
A.Volumetric efficiency
B.Adiabatic efficiency
C.Degree of reaction
D.Static pressure ratio
E.Dynamic pressure ratio
A.Temperature
B.Absolute temperature
C.Absolute temperature in case the volume remains constant
D.The product of volume and absolute temperature
E.None of the above
A.Decrease in pressure and decrease in temperature
B.Increase in pressure and decrease in temperature
C.Increase in pressure and increase in temperature
D.Decrease in pressure and increase in temperature
E.Depends on other factors
A.Takes heat from the surroundings
B.Gives heat to the surrounding
C.Exchanges no heat with the surroundings
D.Partly takes heat and partly leaves to the surroundings
E.Heat taken from surroundings is exactly equal to heat rejected to surroundings
A.quantity of the gas involved
B.molecular weight of the gas
C.atomicity of the gas
D.atmospheric pressure
A.Accounts for all energy entering and leaving a control volume
B.Is an energy balance for the specified mass of fluid
C.Is an expression of the conservation of linear momentum
D.Is primarily concerned with heat transfer
E.Is restricted in its application to perfect gases
A.1 kg/cm2
B.1.033 kg/cm2
C.1.1 kg/cm2
D.1.133 kg/cm2
E.14.7 kg/cm2
A.Adiabatic process
B.Isothermal process
C.Ideal process
D.Frictionless process
E.Energyless process
A.Fusible plug
B.Water level indicator
C.Economiser
D.Stop valve
A.Enthalpy
B.Temperature
C.Work done
D.Pressure