Related Questions

Which type of turbine is a Francis Turbine?
A Impulse Turbine
B Screw Turbine
C Reaction turbine
D Turgo turbine
The power developed by a turbine is (where H = Head of water under which the turbine is working)
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 $${{\text{H}}^{\frac{3}{2}}}$$
The flow ratio of Francis turbine is defined as the ratio of the
A Velocity of flow at inlet to the theoretical jet velocity
B Theoretical velocity of jet to the velocity of flow at inlet
C Velocity of runner at inlet to the velocity of flow at inlet
D None of the above
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 flow ratio in case of Francis turbine varies from
A 0.15 to 0.3
B 0.4 to 0.5
C 0.6 to 0.9
D 1 to 1.5
The speed ratio in case of Francis turbine varies from
A 0.15 to 0.3
B 0.4 to 0.5
C 0.6 to 0.9
D 1 to 1.5
Francis turbine is best suited for
A Medium head application from 24 to 180 m
B Low head installation up to 30 m
C High head installation above 180 m
D All types of heads
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
The gross or total head of the turbine is the ___________ of the water levels at the head race and tail race.
A Sum
B Difference
C Product
D None of these
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

Next steps