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Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 5
46.
Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases.
NPSH required.
BHP required by the pump.
head of the liquid pumped.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Reynolds number is the ratio of
viscous forces to gravity forces.
inertial forces to viscous forces.
viscous forces to inertial forces.
inertial forces to gravity forces.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
For the manometer set up shown in the figure, the pressure difference PA - PB is given by
(ρH - ρair)gH
(ρH - ρL)gH
(ρH - ρL) gH + (ρL - ρair) . g(L - H)
(ρH - ρL) gL + (ρL - ρair)gH
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
The discharge through a venturimeter depends upon
pressure drop only.
its orientation.
co-efficient of contraction only.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
N. second/m2 is
the S.I. unit of dynamic viscosity.
the S.I. unit of kinematic viscosity.
equivalent to one poise.
equivalent to one stoke.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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