Exercise: Hydraulics

Questions for: Hydraulics

If Re is the Renold's number, the coefficient of friction for laminar flow is
A:
B:
C:
D:
Answer: D
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The valve closure is said to be sudden if
A:
B:
C:
D:
Answer: B
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The main assumption of Bernoulli's equation is :
A:
The velocity of energy of liquid particle, across any cross-section of a pipe is uniform
B:
No external force except the gravity acts on the liquid
C:
There is no loss of energy of the liquid while flowing
D:
All the above.
Answer: D
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Hydraulic gradient is equal to difference in water surfaces
A:
B:
C:
D:
Answer: B
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Mach number is the ratio of inertia force to
A:
viscosity
B:
surface tension
C:
gravitational force
D:
elasticity.
Answer: D
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