Mechanical Engineering - Hydraulics and Fluid Mechanics
Exercise :: Hydraulics and Fluid Mechanics - Section 8
| 21. |
A flow in which each liquid particle has a definite path, and the paths of individual particles do not cross each other, is called |
| A. |
steady flow | | B. |
uniform flow | | C. |
streamline flow | | D. |
turbulent flow |
Answer: Option C
Explanation:
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| 22. |
A body floating in a liquid is said to be in neutral equilibrium, if its metacentre |
| A. |
coincides with its centre of gravity | | B. |
lies above its centre of gravity | | C. |
lies below its centre of gravity | | D. |
lies between the centre of buoyancy and centre of gravity |
Answer: Option A
Explanation:
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| 23. |
One cubic metre of water weighs |
| A. |
100 litres | | B. |
250 litres | | C. |
500 litres | | D. |
1000 litres |
Answer: Option D
Explanation:
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| 24. |
Surface tension force is the product of surface tension per unit length and cross-sectional area of flow. |
Answer: Option B
Explanation:
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| 25. |
An average value of coefficient of velocity is |
Answer: Option D
Explanation:
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