316. The magnitude of water hammer depends on
A.Length of pipe
B.Elastic properties of pipe material
C.Rate of stoppage of flow
D.All of the above

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317. The magnitude of water hammer does not depend upon
A.Temperature of fluid
B.Length of pipe
C.Elastic properties of pipe material
D.Time of valve closure

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318. Which of the following represents unsteady uniform flow
A.Flow through an expanding tube at an increasing rate
B.Flow through an expanding tube at constant rate
C.Flow through a long pipe at decreasing rate
D.Flow through a long pipe at constant rate

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319. A weir in which the downstream water level of the weir nappe is higher than the crest, is called
A.Submerged weir
B.Overflowing weir
C.Broadcrested wear
D.Cipoletti weir

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320. Discharge through a totally submerged orifice is directly proportional to
A.The difference in elevation of water surface
B.The square root of the difference in elevation of water surface
C.The square root of the area of the opening
D.Reciprocal of the area of the opening

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321. The upper surface of the weir over which water flows, is known as
A.Vein
B.Nappe
C.Sill
D.Weir top surface

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322. Which of the following represents steady non-uniform flow
A.Flow through an expanding tube at an increasing rate
B.Flow through an expanding tube at constant rate
C.Flow through a long pipe at decreasing rate
D.Flow through a long pipe at a constant rate

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