Exercise: Hydraulics

Questions for: Hydraulics

In pipe lines, a surge tank is provided
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.
Answer: A
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Water displaced by a floating wooden block of density 0.75, 5 m long, 2 m wide and 3 m high, is
A:
17.5 m3
B:
20.0 m3
C:
22.5 m3
D:
25 km3.
Answer: C
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If cohesion between the molecules of a fluid is more than adhesion between the fluid and glass, the free level of fluid in a dipped glass tube will be
A:
higher than the surface of liquid
B:
same as the surface of liquid
C:
lower than the surface of liquid
D:
none of these.
Answer: C
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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
A:
2 m
B:
2.5 m
C:
3.0 m
D:
4.0 m.
Answer: D
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If jet of water coming out from a nozzle with a velocity 9.81 m/s, the angle of elevation being 30°, the time to reach the highest point is
A:
0.25 s
B:
0.50 s
C:
1.0 s
D:
1.5 s.
Answer: B
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