Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 27 of 73)

Horsepower requirement for given pump capacity depends upon the_______________?
A. Specific gravity of the liquid
B. Suction lift
C. Discharge head
D. All a., b. and c.
The buoyant force acting on a floating body is dependent on the _______________?
A. Viscosity of the liquid
B. Weight of the liquid displaced
C. Depth of immersion of the body
D. Surface tension of the liquid
Which of the following is used for pumping crude oil from oil well ?
A. Single stage centrifugal pump
B. Gear pump
C. Screw pump
D. Duplex/triplex reciprocating pump
A stream line is___________________?
A. Fixed in space in steady flow
B. Always the path of particle
C. Drawn normal to the velocity vector at every point
D. A line connecting the mid points of flow cross-section
Froude number is the ratio of__________________?
A. Shear stress to gravitational stress
B. Drag stress to shear stress
C. Inertial stress to shear stress
D. Inertial stress to gravitational stress
Propeller type centrifugal pumps are most suitable for__________________?
A. High capacity at high heads
B. High capacity at low heads
C. Low capacity at high heads
D. Low capacity at low heads