Chemical Engineering - Fluid Mechanics

36. 

Velocity at a certain point in case of streamline flow is

A. constant
B. independent of time
C. both (a) & (b)
D. neither (a) nor (b)

Answer: Option C

Explanation:

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37. 

Sewage sludge is an example of the __________ fluid.

A. Bingham plastic
B. Newtonion
C. pseudoplastic
D. dilatent

Answer: Option A

Explanation:

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38. 

In case of a rotameter, the density of the float material is __________ that of the liquid it replaces.

A. more than
B. less than
C. equal to
D. either (a) or (b)

Answer: Option A

Explanation:

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39. 

Multistage centrifugal pumps are generally used for

A. high head.
B. low head but high discharge.
C. highly viscous liquid.
D. slurries of high solid concentration.

Answer: Option A

Explanation:

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40. 

The fluid jet discharging from a 2" diameter orifice has a diameter of 1.75" at its vena-contracta. The co-efficient of contraction is

A. 1.3
B. 0.766
C. 0.87
D. none of these

Answer: Option B

Explanation:

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