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Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 1
6.
Hydraulic mean depth (Dm) for a circular pipe of diameter 'D' flowing full is 0.25 D. For a circular channel, at Dm = 0.3 D, gives the condition for the maximum
flow rate
mean velocity
both 'a' & 'b'
neither 'a' nor 'b'
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The head loss in turbulent flow in a pipe varies
as velocity
as (velocity)2
inversely as the square of diameter
inversely as the velocity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
Most commonly used joint in the underground pipe lines is the
sleevejoint
coupling
flange
expansion joint
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Schedule number of a pipe, which is a measure of its wall thickness, is given by
1000 P'/S
100 P'/S
1000 S/P'
10000 P'/S
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the
discharge.
suction.
suction minus vapor pressure of the liquid at suction temperature.
discharge minus vapor pressure of the liquid at the discharge temperature.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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