Q. De-Laval turbine is a

View solution

Q. When the back pressure of a nozzle is below the designed value of pressure at exit of nozzle, the nozzle is said to be

View solution

Q. The ratio of the workdone on the blades to the energy supplied to the blades, is called

View solution

Q. The discharge is __________ at critical pressure.

View solution

Q. The supersaturated flow of steam through a nozzle as compared to a stable flow, the available heat drop

View solution

Q. The steam leaves the nozzle at a

View solution

Q. The variation of steam pressure in the nozzle depends upon

View solution

Q. Steam turbines are used for

View solution

Q. Parson's turbine is a

View solution

Q. The value of the reheat factor varies from

View solution

Q. The steam enters the nozzle at a

View solution

Q. The difference of supersaturated temperature and saturation temperature at that pressure is called

View solution

Q. The maximum efficiency of a reaction turbine is

View solution

Q. The ratio of the useful heat drop to the isentropic heat drop is called

View solution

Q. The efficiency of steam turbines may be improved by

View solution

Q. In a reaction turbine, when steam flows through the fixed blades,

View solution

Q. The discharge of steam in a convergent-divergent nozzle __________ after the throat (i.e. in the divergent portion of the nozzle)

View solution

Q. The rate of discharge through the nozzle __________ when the exit pressure is gradually reduced.

View solution

Q. The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency, and hd = Enthalpy or heat drop during expansion of steam in a nozzle)

View solution

Q. In a nozzle, whole frictional loss is assumed to occur between

View solution