Mechanical Engineering - Hydraulics and Fluid Mechanics
Exercise :: Hydraulics and Fluid Mechanics - Section 6
| 36. |
The mercury does not wet the glass. This is due to the property of the liquid known as |
| A. |
cohesion | | B. |
adhesion | | C. |
viscosity | | D. |
surface tension |
Answer: Option D
Explanation:
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| 37. |
The coefficient of discharge in case of internal mouthpiece is __________ that of external mouthpiece. |
Answer: Option A
Explanation:
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| 38. |
The centre of pressure for a vertically immersed surface lies at a distance equal to __________ the centre of gravity. |
Answer: Option A
Explanation:
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| 39. |
According to Manning's formula, the discharge through an open channel is (where M = Manning's constant) |
| A. |
A x M x m1/2 x i2/3 | | B. |
A x M x m2/3 x i1/2 | | C. |
A1/2 x M2/3 x m x i | | D. |
A2/3 x M1/3 x m x i |
Answer: Option B
Explanation:
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| 40. |
When the venturimeter is inclined, then for a given flow it will show __________ reading. |
Answer: Option A
Explanation:
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below
below