In a reaction turbine - Steam Nozzles and Turbines Quiz

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

In a reaction turbine

the expansion of steam takes place partly in the fixed blades and partly in the moving blades

the pressure and temperature of steam remains constant

the steam is expanded from a high pressure to a condenser pressure in one or more nozzles

the steam is allowed to expand in the nozzle, where it gives a high velocity before it enters the moving blades

Correct Answer : Option (A) : the expansion of steam takes place partly in the fixed blades and partly in the moving blades

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