Exercise: Hydraulics

Questions for: Hydraulics

Bernoulli's equation assumes that
A:
fluid is non-viscous
B:
fluid is homogeneous
C:
flow is steady
D:
flow is along the stream line
Answer: E
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If the volume of a liquid weighing 3000 kg is 4 cubic metres, 0.75 is its
A:
specific weight
B:
specific mass
C:
specific gravity
D:
none of these.
Answer: C
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The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid, if
A:
area is horizontal
B:
area is vertical
C:
area is inclined
D:
all the above.
Answer: D
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If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.1 kg/cm2, the pressure at a depth of 2.5 m, is
A:
1 metre of water
B:
2 metres of water
C:
3 metres of water
D:
3.5 metres of water
Answer: C
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The maximum vacuum created at the summit of a syphon is
A:
2.7 m of water
B:
7.4 m of water
C:
5.5 m of water
D:
none.
Answer: B
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