Exercise: Hydraulics And Fluid Mechanics

Questions for: Hydraulics And Fluid Mechanics

The power transmitted through the pipe is maximum when the head lost due to friction is equal to
A:
one-fourth of the total supply head
B:
one-third of the total supply head
C:
one-half of the total supply head
D:
two-third of the total supply head
Answer: B
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The flow in a pipe is laminar, when Reynold number is less than 2000.
A:
True
B:
False
C:
D:
Answer: A
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The loss of head at exit of a pipe is
A:
B:
C:
D:
Answer: A
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The specific weight of water in S.I. units is taken as
A:
9.81 kN/m3
B:
9.81 x 103 kN/m3
C:
9.81 x 10-6 N/mm3
D:
any one of these
Answer: A
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The velocity corresponding to Reynold number of 2000 is called
A:
sub-sonic velocity
B:
super-sonic velocity
C:
lower critical velocity
D:
higher critical velocity
Answer: C
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