the steam is expanded in nozzles only and there is a pressure drop and heat drop

the steam is expanded both in fixed and moving blades continuously

the steam is expanded in moving blades only

the pressure and temperature of steam remains constant

when the cross-section of the nozzle increases continuously from entrance to exit

when the cross-section of the nozzle decreases continuously from entrance to exit

when the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit

none of the above

Yes

No

Unknown

None

reduce speed of rotor

improve efficiency

reduce exit losses

all of these

increases

decreases

remains constant

none of these