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.Management Sciences
Category: Fluid Mechanics for Chemical
In case of supersonic flow of a fluid through pipeline, the ‘Mach number’ is__________________?
0
A. 0
B. 1
C. < 1
D. > 1
A fluid is the one, which___________________?
A. Cannot remain at rest under the action of shear force
B. Continuously expands till it fills any container
C. Is incompressible
D. Permanently resists distortion
In a stabilised soap bubble, pressure inside it compared to external pressure is________________?
A. More
B. Less
C. Same
D. Unpredictable
When larger particles e.g., grains are subjected to fluidisation, the corresponding bed produced is termed as the _______________ bed?
A. Spouted
B. Sluggish
C. Boiling
D. Teeter
I.D. of 1/4″ schedule 40 pipe is 0.364″. I.D. of a 1/2″ schedule 40 pipe would be ______________ inch?
A. 4.728
B. 0.5
C. 0.622
D. 0.474
Check valve provided in the discharge line of a centrifugal pump serves the purpose of controlling the_______________?
A. Back flow of fluid in the event of stoppage of pump
B. Discharge pressure
C. Flow of liquid during operation of the pump
D. All A., B. and C.
An equipotential line is _____________ to the velocity vector at every point?
A. Normal
B. Parallel
C. Tangential
D. None of these
Maintenance cost of a ______________ pump for a particular duty is the least?
A. Centrifugal
B. Reciprocating
C. Volute
D. Gear
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