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Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 3
21.
In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where, T = absolute temperature )
1/T
1/T
T
T
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Applying a pressure drop across a capillary results in a volumetric flow rate 'Q' under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is
Q/2
Q/4
Q/8
Q/16
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Cd, Cc and Cv are related (for flow through an orifice) as (where, Cd = discharge co-efficient
Cc = co-efficient of contraction

Cv = co-efficient of velocity
)
Cd = Cc/Cv
Cd = Cc.Cv
Cd = Cv/cc
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
In an incompressible fluid, the density is
greatly affected by moderate changes in pressure.
greatly affected only by moderate changes in temperature.
not affected with moderate change in temperature & pressure.
sensible to changes in both temperature & pressure.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Check valves are used
at high pressure.
in bends.
for controlling water flow.
for unidirectional flow.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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