Chemical Engineering - Fluid Mechanics

1.
The ratio of the depth of flow to the diameter of the channel for maximum discharge in a circular channel in open channel flow is
0.1
0.55
0.95
1.85
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
A conical tank with a bottom opening of cross-sectional area A is filled with water and is mounted on supports as shown in the figure. What is the force F with which plate X must be pushed up to prevent water from leaking ? Assume that the density of air is negligible as compared to the density of water ρL.
ρL . Vg
ρL . A.Hg
ρL . Vg/2
ρL .Vg/3
Answer: Option
Explanation:
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3.
A relief valve
provides back pressure for a cylinder.
unloads a pump.
is a directional control valve.
none of these.
Answer: Option
Explanation:
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4.
An isentropic process is the one, in which
pv = constant
pvr = constant
pvr = constant, and process is reversible
none of these
Answer: Option
Explanation:
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5.
The distribution of shear stress in a stream of fluid in a circular tube is
linear with radius for turbulent flow only.
linear with radius for laminar flow only.
linear with radius for both laminar & turbulent flow.
parabolic with radius for both laminar & turbulent flow.
Answer: Option
Explanation:
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