The effect of friction on the flow of steam through a nozzle is to

Mechanical Engineering : Steam Nozzles and Turbines - Quiz(MCQ)

decrease the mass flow rate and to increase the wetness of steam

increase the mass flow rate and to increase the exit temperature

decrease the mass flow rate and to decrease the wetness of steam

increase the exit temperature without any effect on mass flow rate

Correct Answer : Option (C) : decrease the mass flow rate and to decrease the wetness of steam

Recently Updated in Steam Nozzles and Turbines Questions

The impulse turbine rotor efficiency will have a maximum value of 0.5 cos2 Î±, where Î± is the nozzle exit flow angle, if the

blades are equiangular

blade solidity is 0.65

blade velocity coefficient is unity

blades are equiangular and frictionless

Correct Answer : blades are equiangular and frictionless

Rateau turbine is

velocity compounded turbine

simple reaction turbine

pressure-velocity compounded turbine

pressure compounded turbine

Correct Answer : pressure compounded turbine

The flow of steam is super-sonic

at the throat of the nozzle

in the divergent portion of the nozzle

at the entrance to the nozzle

in the convergent portion of the nozzle

Correct Answer : in the divergent portion of the nozzle