Exercise: Hydraulics

Questions for: Hydraulics

For maximum horse power of a nozzle, the head supplied must be equal to
A:
head loss in the pipe due to friction
B:
twice the head loss in the pipe due to friction
C:
thrice the head loss in the pipe due to friction
D:
four times the head loss in the pipe due to friction.
Answer: C
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The value of momentum correction factor (β) for a laminar flow through a circular pipe, is
A:
1/2
B:
2/3
C:
3/4
D:
4/3
Answer: D
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The equation for the viscosity, is suggested
A:
Bernoulli
B:
Newton
C:
Chezy
D:
Bezin
Answer: B
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In an open tube, free surface of mercury remains
A:
horizontal
B:
curved upwards
C:
curved downwards
D:
none of these.
Answer: C
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Most economical section of a triangular channel, is
A:
equilateral triangle
B:
right angled triangle
C:
isosceles triangle with 45° vertex angle
D:
right angled triangle with equal sides.
Answer: D
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