Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 13 of 73)

The blades of a centrifugal impeller are said to be curved forward, if the ____________ of the motion of impeller blades?
A. Inlet tip of a blade curves in a direction opposite to that
B. Outlet tip of a blade curves in a direction opposite to that
C. Inlet tip of a blade is towards the direction
D. Outlet tip of a blade is towards the direction
Plunger pumps are used for__________________?
A. Higher pressure
B. Slurries
C. Viscous mass
D. None of these
Which of the following is not a dimension-less parameter ?
A. Pressure-co-efficient
B. Froude number
C. Kinematic viscosity
D. Weber number
Select the correct practical example of steady non-uniform flow?
A. Motion of water around a ship in a lake
B. Motion of river around bridge piers
C. Steadily decreasing flow through a reducing section
D. Steadily increasing flow through a pipe
Purpose of air lift pump is to____________________?
A. Compress air
B. Lift compressed air
C. Lift water from a well by using compressed air
D. Lift air under negative pressure