Civil Engineering - Hydraulics - Discussion
Discussion Forum : Hydraulics - Section 5 (Q.No. 9)
9.
A rise or fall of liquid in a glass tube of a very small diameter when dipped is
Discussion:
22 comments Page 2 of 3.
Pankaj said:
7 years ago
Option A & D are correct.
Priya said:
7 years ago
According to me, A and D is correct but in question, small diameter is given.
NIRANJAN said:
7 years ago
Option A & D Correct.
Sandeep singh said:
7 years ago
Opption A and D both are correct.
SALIM MALIK said:
7 years ago
For pure water in contact with air in a clean glass tube, the capillary rise takes place with θ = 0. Mercury causes capillary depression with an angle of contact of about 1300 in a clean glass in contact with air. Since h varies inversely with D as found from Eq. ( Capillary rise (h) = 4cosθ/ρgD )an appreciable capillary rise or depression is observed in tubes of a small diameter only.
Prahlad Chaudhary said:
8 years ago
Diameter is directly proportional to surface tension (σ). So correct answer is A.
Ritu said:
8 years ago
Answer should be option D.
Ranjan patel said:
8 years ago
Cause of capillarity:
The surface tension of the fluid.
Adhesion of fluid.
Sp. The weight of the fluid.
So, the answer is c.
The surface tension of the fluid.
Adhesion of fluid.
Sp. The weight of the fluid.
So, the answer is c.
Ovais said:
8 years ago
A is the right answer i.e f/l.
Sudarshan said:
8 years ago
In question, There is a rise or fall of 'pressure'.
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