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

Q. The critical pressure ratio for initially wet steam is

View solution

Q. A nozzle is said to be a convergent nozzle

View solution

Q. A turbine is said to have an axial discharge when the steam leaves the blade tip at __________ to the direction of the blade motion.

View solution

Q. The flow through a nozzle is regarded as

View solution

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

View solution

Q. The pressure at which the steam leaves the nozzle is known as back pressure.

View solution

Q. The critical pressure gives the velocity of steam at the throat

View solution

Q. The Parsons' reaction turbine has

View solution

Q. The action of steam in a steam turbine is

View solution

Q. The blade velocity coefficient is ratio of relative velocity of steam at outlet tip of the blade to the relative velocity of steam at inlet tip of the blade.

View solution

Q. Multi-stage steam turbines are of the

View solution