Chemical Engineering - Fluid Mechanics

26. 

Velocity distribution for flow between two fixed parallel plates

A. varies parabolically across the section.
B. is constant over the entire cross-section.
C. is zero at the plates and increases linearly to the midplane.
D. none of these.

Answer: Option A

Explanation:

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27. 

Priming is needed in a __________ pump.

A. reciprocating
B. gear
C. centrifugal
D. diaphragm

Answer: Option C

Explanation:

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28. 

An ideal nozzle design aims at

A. minimising wall friction.
B. suppressing boundary layer separation.
C. both (a) & (b).
D. neither (a) nor (b).

Answer: Option C

Explanation:

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29. 

Which of the fluid forces are not considered in the Reynold's equation of flow ?

A. Viscous forces
B. Turbulent forces
C. Pressure forces
D. Compressibility forces

Answer: Option D

Explanation:

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30. 

For ideally incompressible fluid, the Mach number will be

A. 1.5
B. 1
C. 0
D. 5

Answer: Option B

Explanation:

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