Civil Engineering - Hydraulics

41. 

The horizontal component of the force on a curved surface is equal to

A. weight of liquid vertically below the curved surface
B. force on a vetical projection of the curved surface
C. product of pressure at its centroid and the area
D. weight of liquid retained by the curved area.

Answer: Option B

Explanation:

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42. 

The radius of gyration of the water line of a floating ship is 4 m and its metacentric height is 72.5 cm. The period of oscillation of the ship, is

A. π
B.
C.
D.
E. π/2

Answer: Option C

Explanation:

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43. 

A pipe consisting of several pipes of varying diameters and lengths, may be replaced by an equivalent pipe of diameter D of length

A.
B.
C.
D.

Answer: Option C

Explanation:

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44. 

The Empirical formula for discharge over large rectangular weirs, is known as

A. Francis formula
B. Bazin formula
C. Rehbook formula
D. Kutter's formula.

Answer: Option B

Explanation:

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45. 

The diameter (d) of a nozzle fixed at the end of a pipe (diameter D, length L) for maximum energy, is

A.
B.
C.
D.

Answer: Option C

Explanation:

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