1. What does the following equation represents?

Q= K_{1} ND^{3}

a) Flow of impellor

b) Discharge

c) Velocity

d) Density

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2. What does the following equation represents?

P=Q_{ρ}H

a) Density

b) Discharge

c) Velocity

d) Power

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3. What does the below equation represent?

a) Schmidt number of mixing

b) Froude number of mixing

c) Reynold’s number of mixing

d) Dom number of mixing

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4. What does the following represents?

a) Schmidt number of mixing

b) Froude number of mixing

c) Reynold’s number of mixing

d) Dom number of mixing

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^{2}.

5. What does the below equation represent?

a) Schmidt number

b) Froude number

c) Reynold’s number

d) Power number

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_{O}is used in most of the correlations to represent the relationship to system performance.

6. What does the following represents?

a) Entrainment

b) Flow rate

c) Discharge

d) Throttle

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7. The maximum Q/p^{1/3} for a circular jet is at X= _________

a) 1.71D0

b) 2.5D0

c) 7D0

d) 8.5D0

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^{1/3}for a circular jet is at X=1.71D

_{0}or in other word the optimum jet origin diameter is 1/17.1 of the distance desired for effective entrainment.

8. What does the below equation represent?

a) Velocity gradient

b) Gravity

c) Centrifugal force

d) Exhaust force

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9. As the velocity gradient increases, the shear force _______

a) Decreases

b) Increases

c) Remains same

d) Constant

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10. Calculate G, if two mercury particles are moving at 2 m/sec to each other at a distance of 10 m?

a) 0.2

b) 5

c) 0.5

d) 2

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^{-1}.