Mechanical Engineering - Hydraulics and Fluid Mechanics
Exercise :: Hydraulics and Fluid Mechanics - Section 5
| 21. |
The property of a liquid which controls its rate of flow is called viscosity. |
Answer: Option A
Explanation:
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| 22. |
The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is |
| A. |
0.0116 stoke | | B. |
0.116 stoke | | C. |
0.0611 stoke | | D. |
0.611 stoke |
Answer: Option A
Explanation:
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| 23. |
The factional resistance of a pipe varies approximately with __________ of the liquid. |
| A. |
pressure | | B. |
velocity | | C. |
square of velocity | | D. |
cube of velocity |
Answer: Option C
Explanation:
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| 24. |
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is |
| A. |
0.417 H5/2 | | B. |
1.417 H5/2 | | C. |
4.171 H5/2 | | D. |
7.141 H5/2 |
Answer: Option B
Explanation:
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| 25. |
According to Bazin, the coefficient of discharge varies with the height of water over the sill of a weir. |
Answer: Option A
Explanation:
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