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Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 13
41.
In a free vortex, the
velocity changes linearly with radial distance.
flow is necessarily rotational.
radial component of velocity is same everywhere.
stream lines are not circular.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Pick out the wrong statement.
The eddy viscosity is a function of the type of turbulence involved.
The eddy viscosity is a fluid property.
The viscosity of gas increases with increase in temperature.
The viscosity of a liquid increases with decrease in temperature.
Answer: Option
Explanation:
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43.
The velocity distribution in direction normal to the direction of flow in plane Poiseuille flow is
hyperbolic
parabolic
linear
none of these
Answer: Option
Explanation:
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44.
In fluid flow, the stagnation point is defined as a point, where the __________ is zero.
flow velocity
pressure
total energy
all (a), (b) and (c)
Answer: Option
Explanation:
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45.
A special type of liquid transporting device is the diffuser pump, in which __________ are minimised.
bearing losses
disk friction
shock losses
cavitation
Answer: Option
Explanation:
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