Purpose of air lift pump is to____________________?

Byadmin March 9, 2019August 27, 2021

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

Fluid Mechanics for Chemical

Cavitation in a pump creates so many undesirable effects. Out of the following, which is not an undesirable effect created by cavitation ?

Cavitation in a pump creates so many undesirable effects. Out of the following, which is not an undesirable effect created by cavitation ?

A. Decrease in effect
B. Increase in thrust
C. Develops noise
D. Develops high pressure

Read More Cavitation in a pump creates so many undesirable effects. Out of the following, which is not an undesirable effect created by cavitation ?
Fluid Mechanics for Chemical

An ideal nozzle design aims at________________?

An ideal nozzle design aims at________________?

A. Minimising wall friction
B. Suppressing boundary layer separation
C. Both A. & B.
D. Neither A. nor B.

Read More An ideal nozzle design aims at________________?
Fluid Mechanics for Chemical

A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an _____________ fluid?

A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an _____________ fluid?

A. Newtonian
B. Non-Newtonian
C. Ideal
D. Incompressible

Read More A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an _____________ fluid?
Fluid Mechanics for Chemical

A rectangular surface 3′ × 4′, has the lower 3 edge horizontal and 6′ below a free oil surface (sp. gr. 0.8). The surface inclination is 300 with the horizontal. The force on one side of the surface is (where, y = specific weight of water) ?

A rectangular surface 3′ × 4′, has the lower 3 edge horizontal and 6′ below a free oil surface (sp. gr. 0.8). The surface inclination is 300 with the horizontal. The force on one side of the surface is (where, y = specific weight of water) ?

A. 39.6y
B. 48y
C. 49.2y
D. 58y

Read More A rectangular surface 3′ × 4′, has the lower 3 edge horizontal and 6′ below a free oil surface (sp. gr. 0.8). The surface inclination is 300 with the horizontal. The force on one side of the surface is (where, y = specific weight of water) ?
Fluid Mechanics for Chemical

The friction factor for turbulent flow in a hydraulically smooth pipe______________?

The friction factor for turbulent flow in a hydraulically smooth pipe______________?

A. Depends only on Reynolds number
B. Does not depend on Reynolds number
C. Depends on the roughness
D. None of these

Read More The friction factor for turbulent flow in a hydraulically smooth pipe______________?
Fluid Mechanics for Chemical

In case of unsteady fluid flow, conditions & flow pattern change with the passage of time at a position in a flow situation. Which of the following is an example of unsteady flow ?

In case of unsteady fluid flow, conditions & flow pattern change with the passage of time at a position in a flow situation. Which of the following is an example of unsteady flow ?

A. Discharge of water by a centrifugal pump being run at a constant rpm
B. Water flow in the suction and discharge pipe of a reciprocating pump
C. Water discharge from a vertical vessel in which constant level is maintained
D. Low velocity flow of a highly viscous liquid through a hydraulically smooth pipe

Read More In case of unsteady fluid flow, conditions & flow pattern change with the passage of time at a position in a flow situation. Which of the following is an example of unsteady flow ?

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