Civil Engineering - Hydraulics - Discussion

Discussion Forum : Hydraulics - Section 3 (Q.No. 37)
37.
In an open tube, free surface of mercury remains
horizontal
curved upwards
curved downwards
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
33 comments Page 2 of 4.

Muhammad Saqib said:   6 years ago
I think it should be option B, because cohesion is more than adhesion, same as a case in water.

Tanmoy Karmakar said:   6 years ago
B is the correct.

Curved Upward because mercury has a high cohesive value than adhesion.

Abhinay said:   8 years ago
Wrong. Because of cohesive force is predominant here than adhesive force.

Anjali said:   5 years ago
@Mahrukh.

You are right, thanls.

Prince said:   4 years ago
The fluid falls down due to strong cohesion but its shape is curved downwards. So the answer is B.

Ranjit said:   3 years ago
Curve upward. Heavy liquid and water downward cover.

Pradip kumar Ray said:   3 years ago
C is correct.

Because in the case of mercury medium cohesive force between molecules is greater than adhesive force and capillary fall occurs.

So C is correct.

Ram Kumar said:   1 decade ago
Because mercury is also a type of liquid, and the plane of all liquids segment (move downward) due to surface tension force in open tubes.

B GURUNATH said:   8 years ago
I think answer B is correct.

Because cohesion property is more than the adhesive property.

Lalit said:   8 years ago
Curve is upward due to dominant force is cohesion in mercury. While downward in water, in which dominant is adhesion.


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