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 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
The speed of a turbine runner is
A Directly proportional to $${{\text{H}}^{\frac{1}{2}}}$$
B Inversely proportional to $${{\text{H}}^{\frac{1}{2}}}$$
C Directly proportional to $${{\text{H}}^{\frac{3}{2}}}$$
D Inversely proportional to $${{\text{H}}^{\frac{3}{2}}}$$
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 specific speed of turbine is defined as the speed of a unit
A Of such a size that it delivers unit discharge at unit head
B Of such a size that it delivers unit discharge at unit power
C Of such a size that it requires unit power per unit head
D Of such a size that it produces unit horse power with unit head
The discharge through a reaction turbine with increase in unit speed
A Increases
B Decreases
C Remain unaffected
D First increases and then decreases
The discharge through a reaction turbine __________ with the increase in unit speed.
A Decreases
B Increases
C Remain same
D None of these

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