Exercise: Hydraulics

Questions for: Hydraulics

To avoid the tendency of separation of liquid flow, the most suitable ratio of the diameters of the throat and the pipe, is
A:
1/4 to 1/8
B:
1/3 to 1/2
C:
1/2 to 3/4.
D:
none of these.
Answer: B
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Discharge with velocity of approach, over a rectangular weir is
A:
Cd x L x 2g [(H + ha)3/2 + ha3/2]
B:
Cd x L x 2g [(H + ha)3/2 - ha3/2]
C:
Cd x L x 2g [(H - ha)3/2 + ha3/2]
D:
Cd x L x 2g [(H - ha)3/2 - ha3/2]
Answer: B
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The ratio of the inertia and viscous forces acting in any flow, ignoring other forces, is called
A:
Euler number
B:
Frode number
C:
Reynold number
D:
Weber number.
Answer: C
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The upper surface of the weir over which water flows, is known as
A:
vein
B:
nappe
C:
sill
D:
none of these.
Answer: C
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Specific energy of a flowing fluid per unit weight is
A:
B:
C:
D:
Answer: C
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