ER MODEL AND BUSINESS RULES QUIZ

For Laminar flow through a packed bed, the pressure drop is proportional to (Vs is the superficial liquid velocity and Dp is the particle diameter)

Vs/Dp³

Vs/Dp²

Vs²/Dp²

Vs²/Dp³

TRUE ANSWER : ?
YOUR ANSWER : ?

While starting an axial flow pump, its delivery valve should be kept

Open

None of these

Closed

Either open or closed

TRUE ANSWER : ?
YOUR ANSWER : ?

The dimension of kinematic viscosity is

ML⁻²T⁻²

None of these

L²T⁻¹

ML⁻²T⁻¹

TRUE ANSWER : ?
YOUR ANSWER : ?

In power law, ζ = A (du/dy)² + B , then the fluid is

Rheopectic

Newtonian

Dilatant

Thixotropic

TRUE ANSWER : ?
YOUR ANSWER : ?

Velocity at a certain point in case of streamline flow is

Both A & B

Constant

Neither A nor B

Independent of time

TRUE ANSWER : ?
YOUR ANSWER : ?

Laminar flow is characterised by the nonexistence of

Eddies

Deviating velocities

All of these

Pressure fluctuation

TRUE ANSWER : ?
YOUR ANSWER : ?

Priming of a centrifugal pump is done to

Avoid chances of separation inside the impeller

None of these

Increase the mass flow rate of fluid

Develop effective pressure rise by the pump

TRUE ANSWER : ?
YOUR ANSWER : ?

Pressure drop in a fluidised bed reactor is __________ that in a similar packed bed reactor.

None of these

Same as

Less than

More than

TRUE ANSWER : ?
YOUR ANSWER : ?

For the transfer of solution of thick slurry, the pump used is a __________ pump.

Gear

Diaphragm

Reciprocating

Centrifugal

TRUE ANSWER : ?
YOUR ANSWER : ?

Bernoull's equation does not apply to the functioning of a/an

Venturimeter

None of these

Orificem

Pitot tube

TRUE ANSWER : ?
YOUR ANSWER : ?

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