Chemical Engineering - Fluid Mechanics
Exercise :: Fluid Mechanics - Section 6
| 1. |
The distance between metacentre and __________ is called metacentric height. |
| A. |
water surface | | B. |
centre of gravity | | C. |
centre of buoyancy | | D. |
none of these |
Answer: Option B
Explanation:
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| 2. |
Check valve is used for __________ flow. |
| A. |
very precise control of | | B. |
unidirectional | | C. |
multidirectional | | D. |
none of these |
Answer: Option B
Explanation:
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| 3. |
Capacity of a rotary gear pump can be varied by |
| A. |
changing the speed of rotation. | | B. |
bleeding air into suction. | | C. |
bypassing liquid from the suction or discharge line. | | D. |
all (a), (6) and (c). |
Answer: Option D
Explanation:
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| 4. |
For a given Reynolds number, in a hydraulically smooth pipe, further smoothening __________ the friction factor. |
| A. |
brings about no further reduction of | | B. |
increases | | C. |
decreases | | D. |
none of these |
Answer: Option A
Explanation:
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| 5. |
Power number is the ratio of |
| A. |
drag stress to inertial stress. | | B. |
inertial stress to drag stress. | | C. |
inertial stress to gravitational stress. | | D. |
gravitational stress to drag stress. |
Answer: Option A
Explanation:
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