Q. De-Laval turbine is a

View solution

Q. The impulse turbine rotor efficiency will have a maximum value of 0.5 cos² α, where α is the nozzle exit flow angle, if the

View solution

Q. When the cross-section of a nozzle increases continuously from entrance to exit, it is called a

View solution

Q. Rateau turbine is

View solution

Q. The ratio of the work delivered at the turbine shaft to the heat supplied is called overall thermal efficiency of turbine.

View solution

Q. The pressure of steam __________ while flowing through a nozzle.

View solution

Q. The process of maintaining the speed of the turbine constant for various load conditions, is known as

View solution

Q. Reheating of steam in a turbine

View solution

Q. Which of the following statement is correct for steam turbines as compared to reciprocating steam engines?

View solution

Q. The density of supersaturated steam is about __________ that of the ordinary saturated vapour at the corresponding pressure.

View solution

Q. In a single stage impulse turbine, the velocity of steam approaching nozzles is negligible.

View solution

Q. Curtis turbine is a

View solution

Q. The velocity of steam at throat of the nozzle is __________ the velocity of sound.

View solution

Q. The critical pressure ratio for initially dry saturated steam is

View solution

Q. The discharge through a nozzle is maximum for a certain value of exit pressure. This pressure is known as critical pressure.

View solution

Q. When the nozzle operates with the maximum mass flow, the nozzle is said to be

View solution

Q. In a velocity compounded impulse turbine, when steam flows through the second row of moving blades,

View solution

Q. The ratio of the energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam is called mechanical efficiency.

View solution

Q. A steam nozzle converts

View solution

Q. The maximum discharge of steam through a convergent-divergent nozzle depends upon

View solution