Chemical Engineering - Fluid Mechanics

11. 

Acceleration head in a reciprocating pump

A. increases the work done during delivery stroke.
B. decreases the work done during suction stroke.
C. does not change the work requirement of the pump.
D. increases the work done during suction stroke.

Answer: Option C

Explanation:

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12. 

The ratio of inertial forces to elastic forces is called the __________ number.

A. Reynolds
B. Mach
C. Euler
D. Weber

Answer: Option B

Explanation:

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13. 

The equivalent diameter for flow through a rectangular duct of width B and height H is

A.
B.
C.
D.

Answer: Option C

Explanation:

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14. 

Fluid flow at increasing rate through a diverging pipe is an example of __________ flow.

A. steady uniform
B. non-steady uniform
C. steady non-uniform
D. non-steady non-uniform

Answer: Option D

Explanation:

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15. 

The temperature in isentropic flow

A. does not depend on Mach number.
B. depends on Mach number only.
C. cannot drop and then increase again downstream.
D. none of these.

Answer: Option B

Explanation:

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