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.Management Sciences
Category: Fluid Mechanics for Chemical
When the head pumped against is less than the head of the fluid used for pumping, the usual device is a/an______________________?
A. Ejector
B. Blower
C. Injector
D. Airlift
For the same flow rate of a fluid, the pressure drop is the least for ____________________?
A. Venturimeter
B. Orificemeter
C. Flow-nozzle
D. Δp is same for all
A pump operating under specific conditions delivers insufficient quantity of liquid. This may be set right by________________?
A. Decreasing the size of the inlet pipe
B. Increasing the size of the inlet pipe
C. Lowering the pump position
D. Both B. and C.
Which of the following assumptions enables the Euler’s equation of motion to be integrated ?
A. The fluid is incompressible
B. The fluid is non-viscous
C. The continuity equation is satisfied
D. The flow is rotational and incompressible
Hot wire anemometer is used to measure the_________________?
A. Velocity of liquids
B. Temperature of liquids
C. Velocity of gases
D. Pressure of liquids
Design of the casing of centrifugal pump should be such as to minimise the________________?
A. Back flow through impeller
B. Loss of kinetic head
C. Loss of static head
D. None of these
The speed of sound in an ideal gas varies as the __________________?
A. Temperature
B. Pressure
C. Density
D. None of these
Friction produced by the formation of wakes is called the ______________ friction?
A. Disk
B. Skin
C. Form
D. None of these
Select the wrong statement pertaining to flow of an incompressible fluid through a Venturimeter ?
A. For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that
leaving the Venturimeter
B. Discharge of fluid through a Venturimeter depends upon the gage difference irrespective of
the orientation of Venturimeter
C. Venturimeter occupies less space than an orificemeter
D. Venturimeter incurs less power loss compared to an equivalent orificemeter
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