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.Management Sciences
Category: Fluid Mechanics for Chemical
The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by_____________________?
A. Cv . √(2gH)
B. Cc . √(2gH)
C. Cd . √(2gH)
D. Cv . Va
Venturimeter and orificemeter measures the _____________ of the fluid?
A. Pressure
B. Maximum velocity
C. Average velocity
D. Point velocity
The nominal size of a hose pipe is specified by its _________________?
A. I.D.
B. O.D.
C. Thickness
D. None of these
Boundary layer separation is caused by the ____________________?
A. Reduction of pressure below vapour pressure
B. Reduction of pressure gradient to zero
C. Adverse pressure gradient
D. Reduction of boundary layer thickness to zero
N. second/m2 is___________________?
A. The S.I. unit of dynamic viscosity
B. The S.I. unit of kinematic viscosity
C. Equivalent to one poise
D. Equivalent to one stoke
Drag co-efficient in hindered settling is _____________ that in free settling?
A. Less than
B. Equal to
C. Not necessarily greater than
D. Always greater than
The head loss in turbulent flow in a pipe varies_________________?
A. Directly as the velocity
B. Inversely as the square of the velocity
C. Approximately as the square of the velocity
D. Inversely as the square of the diameter
Plunger pumps are used for__________________?
A. Higher pressure
B. Slurries
C. Viscous mass
D. None of these
For the production of very high vacuum, a _____________ pump is normally used?
A. Diffusion
B. Centrifugal
C. Jet ejector
D. Piston
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