Civil Engineering - Hydraulics - Discussion

Discussion Forum : Hydraulics - Section 5 (Q.No. 44)
44.
The depth of the centre of pressure on a vertical rectangular gate (4 m wide, 3 m high) with water upto top surface, is
1.0 m
1.5 m
2.0 m
2.5 m.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
19 comments Page 1 of 2.

Niranjan said:   2 years ago
The depth of the center of pressure= 2H/3.
(2*3)/3 =2m.
(1)

Jero M said:   2 years ago
We know that, the centre of pressure for a plane uniform vertical surface lies at the depth of two-thirds of the height of immersed portion.
So, here we get 2/3 of 3m which is equal to 2m.

The given answer is correct.
(1)

Muhammad Hashim said:   4 years ago
CP = (Ig/Ax)+x.
CP = ((bd3/12)/bd*d/2)+1.5,
CP = (d/6)+1.5,
CP = 1/2+1.5,
CP = 2.
C is the right one.
(1)

Aadarsh Devkate said:   7 years ago
Center of pressure = 2h/3 = 2 (3)/3 = 2m.
(1)

Muhammad Atiq said:   6 years ago
@Aadarsh.

4m isn't height its width of gate H = 3m.

Nikitha said:   2 years ago
2h/3 = (2*3)/3 = 2.

Dipunku said:   5 years ago
It should be 2.5.

Sanku said:   5 years ago
It is 2.5.

Imran said:   5 years ago
Area = b*d.
CG (y)= d/2.
Ig = bd3/12.
Center of pressure = y + Ig/Ay.

Santhosh said:   6 years ago
Depth of center of gravity,

H = 2h/3
= 2*3 / 3
= 2 m.


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