Exercise: Hydraulic Machines

Questions for: Hydraulic Machines

A Kaplan turbine is preferred for a specific speed of 300 to 1000 r.p.m.
A:
Yes
B:
No
C:
D:
Answer: A
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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
Answer: C
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The centrifugal pump preferred for a specific speed between 80 to 160 r.p.m. is
A:
slow speed with radial flow at outlet
B:
medium speed with radial flow at outlet
C:
high speed with radial flow at outlet
D:
high speed with mixed flow at outlet
Answer: D
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The action of a centrifugal pump is that of a reversed reaction turbine.
A:
Correct
B:
Incorrect
C:
D:
Answer: A
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For 450 m head of water, __________ shallbeused.
A:
Pelton wheel
B:
Kaplan turbine
C:
Francis turbine
D:
none of these
Answer: A
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