Related Questions

The specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine, which
A Delivers unit discharge under unit head
B Delivers unit discharge under unit speed
C Develops unit power under unit head
D Develops unit power under unit speed
which of the following components of reaction turbine increases the head on the turbine by an amount equal to the height of runner outlet above the tail race ?
A Scroll casing
B Guide vanes
C Draft tube
D Moving vanes
The unit speed of the turbine runner is
A $$\frac{{\text{N}}}{{\sqrt {\text{H}} }}$$
B $$\frac{{\text{N}}}{{\text{H}}}$$
C $$\frac{{\text{N}}}{{{{\text{H}}^{\frac{3}{2}}}}}$$
D $$\frac{{\text{N}}}{{{{\text{H}}^2}}}$$
In a Kaplan turbine runner, the numbers of blades are generally between
A 2 to 4
B 4 to 8
C 8 to 16
D 16 to 24
In a Francis turbine runner, the numbers of blades are generally between
A 2 to 4
B 4 to 8
C 8 to 16
D 16 to 24
The pump impeller and the turbine runner in a hydraulic torque converter
A Have the same diameter
B Have different diameters
C Are directly coupled
D None of these
The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as
A Normal speed
B Unit speed
C Specific speed
D None of these
Which energy generated in a turbine is used to run electric power generator linked to the turbine shaft?
A mechanic energy
B kinetic energy
C potential energy
D elastic energy
Which type of turbine is a Francis Turbine?
A Impulse Turbine
B Screw Turbine
C Reaction turbine
D Turgo turbine
The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is
A Low
B High
C Same
D Low/high depending on make and type

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