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Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 4
36.
Self-priming centrifugal pump can be used for
booster service.
pumping liquid fertilisers (e.g. liquid NH3).
pumping industrial wastes.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the
pipe length
fluid velocity in the pipe
time taken to close the valve
all (a), (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Bernoull's equation does not apply to the functioning of a/an
venturimeter
orificem
pitot tube
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
What is the shear rate at the pipe wall, in case of laminar flow of Newtonion fluids in a pipe of diameter 'D' & length 'L' incurring a pressure drop 'Δp' with average velocity 'Vavg'?
D Δp/8L
D Δp/4L
8 . Vavg/D
4 . Vavg/D
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Pascal's law is valid, only when the fluid is
frictionless and at rest.
at rest.
at rest and when the frictionless fluid is in motion.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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