Civil Engineering - Hydraulics - Discussion

Discussion Forum : Hydraulics - Section 1 (Q.No. 4)
4.
The maximum vacuum created at the summit of a syphon is
2.7 m of water
7.4 m of water
5.5 m of water
none.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
25 comments Page 3 of 3.

Soumya said:   5 years ago
How to calculate maximum vacuum height?
(1)

Laxmi shah said:   5 years ago
The minimum vacuum created at the summit of a syphon.
(1)

Shivanshu said:   5 years ago
For vacuum, it will be 7.8.
(1)

Sunil said:   5 years ago
The pressure is only -7.6m of water or 10.3-7.6= 2.7 m of water absolute.
p vacuum = p atm - p absolute.
So maximum vacuum = 10.3-2.7 = 7.6 m.
(5)

Jibin said:   4 years ago
The pressure at the summit is always less than atmospheric pressure. So, the highest point according to options is 7.4 that is less than 10.33, so the answer B is correct.
(6)


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