Civil Engineering - Hydraulics

16. 

Discharge over an ogee weir remains the same as that of

A. sharp crested weir
B. triangular weir
C. cippoletti weir
D. drowned weir.

Answer: Option C

Explanation:

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17. 

When no air is left below the nappe and water stream adheres to the down stream face of the weir, it is known as

A. free nappe
B. depressed nappe
C. clinging nappe
D. none of these.

Answer: Option C

Explanation:

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18. 

The best side slope for most economical trapezoidal section, is

A. 30°
B. 45°
C. 60°
D. None of these.

Answer: Option C

Explanation:

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19. 

The following is not a laminar flow

A. Flow of oil in measuring instruments
B. Flow in beds in ground water
C. Rise of water in plants through roots
D. Flow of blood in the arteries of human body
E. Flow in water pipe lines.

Answer: Option E

Explanation:

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20. 

Which one of the following statements is true ?

A. The value of kinetic energy correction factor for turbulent flow lies between 1.03 to 1.06
B. The value of kinetic energy correction factor for laminar flow is 2
C. The practical value of kinetic energy correction factor for turbulent flow is unity
D. all the above.

Answer: Option D

Explanation:

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