126) A nozzle is said to be a convergent-divergent nozzle, when the cross-section of a nozzle first decreases from its entrance to throat and then increases from its throat to exit.

Right

Wrong

Answer is:

Right

fixed blades

moving blades

both fixed and moving blades

none of these

Answer is:

there is a pressure drop in the nozzle

fluid flows through the nozzle

pressure drops and fluid flows through the nozzle

there is no pressure drop and fluid does not flow through the nozzle

Answer is:

10 to 15%

15 to 20%

20 to 30%

30 to 40%

Answer is:

it increases the thermodynamic efficiency of the turbine

boiler is supplied with hot water

it decreases the power developed by the turbine

all of the above

Answer is: