Chemical Engineering - Fluid Mechanics

1. 

The continuity equation of fluid mechanics utilises the principle of conservation of

A. momentum
B. mass
C. energy
D. both (b) & (c)

Answer: Option B

Explanation:

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2. 

Stoke's law is valid, when the particle Reynolds number is

A. < 1
B. > 1
C. < 5
D. none of these

Answer: Option A

Explanation:

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3. 

Which of the following is not a dimension-less parameter ?

A. Pressure-co-efficient
B. Froude number
C. Kinematic viscosity
D. Weber number

Answer: Option C

Explanation:

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4. 

In which of the following cases, it is possible for flow to occur from low pressure to high pressure ?

A. Flow of liquid upward in a vertical pipe.
B. Flow through a converging section.
C. Flow of air downward in a pipe.
D. Impossible in a constant cross-section conduit.

Answer: Option B

Explanation:

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5. 

The percentage slip in a reciprocating pump set is given by the % of (where, Q1 = actual discharge Q2 = theoretical discharge)

A. Q1/Q2
B. Q2/Q1
C.
D.

Answer: Option D

Explanation:

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