Mechanical Engineering - Hydraulics and Fluid Mechanics
Exercise :: Hydraulics and Fluid Mechanics - Section 4
| 36. |
Reynold's number is the ratio of the inertia force to the |
| A. |
surface tension force | | B. |
viscous force | | C. |
gravity force | | D. |
elastic force |
Answer: Option B
Explanation:
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| 37. |
A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is |
| A. |
3.53 kN | | B. |
33.3 kN | | C. |
35.3 kN | | D. |
none of these |
Answer: Option C
Explanation:
|
| 38. |
A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest. |
| A. |
equal to | | B. |
less than | | C. |
more than |
Answer: Option B
Explanation:
|
| 39. |
The total pressure on an immersed surface inclined at an angle θ with the liquid surface is |
Answer: Option C
Explanation:
|
| 40. |
Turbulent flow takes place at high velocities. |
Answer: Option A
Explanation:
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