Mechanical Engineering - Hydraulics and Fluid Mechanics

36. 

Kinematic viscosity is the product of dynamic viscosity and the density of the liquid.

A. Yes
B. No

Answer: Option B

Explanation:

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37. 

A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a

A. notch
B. weir
C. mouthpiece
D. nozzle

Answer: Option C

Explanation:

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38. 

A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.

A. H/3
B. H/2
C. 2H/3
D. 3H/4

Answer: Option C

Explanation:

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39. 

A nozzle is generally made of

A. cylindrical shape
B. convergent shape
C. divergent shape
D. convergent-divergent shape

Answer: Option B

Explanation:

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40. 

The unit of surface tension is

A. N/m
B. N/m2
C. N/m3
D. N-m

Answer: Option A

Explanation:

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