Civil Engineering - Waste Water Engineering - Discussion

Discussion Forum : Waste Water Engineering - Section 6 (Q.No. 5)
For drainage pipes in buildings the test applied before putting them to use, is
water test
smoke test
straightness test
all the above.
Answer: Option
No answer description is available. Let's discuss.
11 comments Page 1 of 2.

Alpesh mali said:   1 year ago
The laid pipes are usually tested to ascertain the water-tightness of the pipes and joints. There are three tests that are commonly performed to test leakage of the pipes and are as follows:.

(i) Air Test - Generally used to test underground and vertical pipes. The escape of air from the leaky joint form bubbles that can be seen visually.

(ii) Water Test - Most commonly used for underground house sewer pipes. The drain is plugged at the lower end and the water is filled in the pipe through the upper manhole to maintain a pressure of 1 to 1.5 m depth of water. If there is no drop in water level in 10 minutes, then there is no leakage from the pipe.

(iii) Smoke Test - Generally used to detect leakage of existing vertical sullage pipes or rainwater pipes. In this test, smoke is forced into the pipe with the help of a blower to test the leakage.

Anirban Roy said:   4 years ago
No, the answer is correct as for pipe network in a building we need to check only the leakage. So only smoke test is conducted.

Pavan said:   4 years ago
The Correct answer should be D.

Shashikanth said:   4 years ago
Here they have asked for a building so, the smoke test is used.

Suresh relu said:   5 years ago
Answer is correct because other two options are used for large work.

Sagar said:   6 years ago
In the drainage methane gas then check the content of the methane gas that's why this test is conducted.

Pramod said:   6 years ago
Why option D is correct?

Describe please.

Siddharth said:   6 years ago
Option D is correct.

Balvinder guleria said:   6 years ago
Yes, it's D.

Satyawan Radhedhysm Suthar said:   6 years ago
D should be the correct option.

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