Civil Engineering - Hydraulics - Discussion

Discussion Forum : Hydraulics - Section 3 (Q.No. 23)
23.
Molecules of fluids get attracted due to
capillarity action
surface tension
adhesion
cohesion
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
44 comments Page 5 of 5.

Science_freak said:   9 years ago
The answer should be cohesion, not adhesion.

Puneet said:   9 years ago
It is D .

Or the question should explain whether molecules are attracted towards a different material or towards itself.

Udaye said:   10 years ago
Molecules of fluid get attracted due to cohesion you writing and at last you telling answer is C. What is the answer?

Karan said:   10 years ago
Molecules of fluid get attracted due to cohesion.

Example: When you drop a Mercury in to the horizontal surface, it gets gathered due to cohesion. And if you drop a water in surface, it gets wets and flow in all direction, it is due to adhesion.

Mercury is a non-wetting fluid and water is a wetting fluid. So right answer is the option 'C'.


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