Engineering :: Hydraulics and Fluid Mechanics
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| 21. |
A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because |
| A. |
it is easier to see through the glass tube |
B. |
glass tube is cheaper than a metallic tube |
| C. |
it is not possible to conduct this experiment with any other tube |
D. |
all of the above |
Answer: Option A
Explanation:
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| 22. |
The mercuty 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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| 23. |
With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will |
| A. |
decrease |
B. |
increase |
| C. |
remain unchanged |
D. |
depend upon the characteristics of liquid |
Answer: Option A
Explanation:
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| 24. |
In the manufacturing of lead shots, the property of surface tension is utilised. |
Answer: Option A
Explanation:
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| 25. |
The surface tension of mercury at normal temperature is |
| A. |
same as |
B. |
lower than |
| C. |
higher than |
Answer: Option C
Explanation:
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| 26. |
The unit of surface tension is |
Answer: Option A
Explanation:
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| 27. |
The viscosity of a liquid is due to cohesion of its particles. |
Answer: Option A
Explanation:
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| 28. |
The viscosity of a liquid |
| A. |
effects |
B. |
does not effect |
Answer: Option A
Explanation:
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| 29. |
The viscosity of water is |
Answer: Option A
Explanation:
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| 30. |
Falling drops of water become spheres due to the property of |
| A. |
surface tension of water |
B. |
compressibility of water |
| C. |
capillarity of water |
D. |
viscosity of water |
Answer: Option A
Explanation:
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