Civil Engineering - Hydraulics

46. 

Pick up the correct statement regarding Borda's mouth piece running full from the following :

A. Actual velocity at the out let is gH
B. Theoretical velocity at the outlet is 2gH
C. Coefficient of velocity is 1/2
D. Coefficient of contraction is 1
E. All the above.

Answer: Option E

Explanation:

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47. 

Differential manometers are used to measure

A. pressure in water channels, pipes, etc.
B. difference in pressure at two points
C. atmospheric pressure
D. very low pressure.

Answer: Option B

Explanation:

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48. 

A tank 4m x 3m x 2m containing an oil of specific gravity 0.83 is moved with an acceleration g/2 m sec2. The ratio of the pressures at its bottom when it is moving vertically up and down, is

A. 2
B. 3
C. 1/2
D. 1/3

Answer: Option B

Explanation:

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49. 

The most familiar form of Bernoulli's equation, is

A.
B.
C. = constant head
D. none of these.

Answer: Option C

Explanation:

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50. 

Highest dam in India, is

A. Bhakra dam
B. Hirakund dam
C. Nagarjuna Sagar dam
D. Iddiki dam.

Answer: Option A

Explanation:

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