The discharge through a 100 mm diameter external mouth piece fitted to the side

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Question
The discharge through a 100 mm diameter external mouth piece fitted to the side of a large vessel is 0.05948 m³/s. The head over the mouth piece is
Options
A. 2 m
B. 2.5 m
C. 3.0 m
D. 4.0 m.

Correct Answer

4.0 m.

Hydraulics problems

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3. A closed cylindrical vessel of 100 cm diameter and 200 cm high is completely filled with a liquid (sp. weight 1600 kg/m³) when rotated about its vertical axis at 100 r.p.m. The total pressure on its lid, is
Options
A. 459 kg
B. 549 kg
C. 945 kg
D. 954 kg
E. 95.4 kg.

4. When water flows over a rectangular suppressed weir, the negative pressure created beneath the nappe
Options
A. increases the discharge
B. decreases the discharge
C. does not effect the discharge
D. none of these.

6. Barometres are used to measure
Options
A. pressure in water channels, pipes etc.
B. difference in pressure at two points
C. atmospheric pressure
D. very low pressure
E. very high pressure.

8. In pipe lines, a surge tank is provided
Options
A. to relieve the pressure due to water hammer
B. to provide additional water head
C. to overflow the pipe line when suddenly closed
D. to remove the frictional loss in pipe.

9. A cylinder 3 m in diameter and 4 m long retains water one side as shown in the below figure. If the weight of the cylinder is 2000 kgf, the vertical reaction at A is
Options
A. 14,137 kgf
B. 5,863 kgf
C. 20,000 kgf
D. 18,000 kgf.

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