Civil Engineering - Estimating and Costing - Discussion

Discussion Forum : Estimating and Costing - Section 1 (Q.No. 16)

Estimating and Costing

16.

Pick up the incorrect statement regarding a master trap from the following :

It is provided in between the lower end of the house drain and the street sewer

It is provided a cleaning eye at the top of the trap

The height of fresh air inlet pipe fixed vertically with wall is 3 m

The mica flap valve which opens inwards only, is fitted at the top of the inlet pipe

The water seal is less than that of ordinary traps.

Answer: Option

Explanation:

No answer description is available. Let's discuss.

Discussion:

7 comments Page 1 of 1.

Sameer kashmiri said: 1 decade ago

Without water seal the trap is fail. So for every trap PQS the seal is same and important.

Pavanrk25 said: 7 years ago

Water seal provides to avoid foul gases enter in the house through the sewer pipe.

Hisham said: 6 years ago

The water seal is more in the intercepting trap. Usually 10cm. Others are 7.5cm.

Uma said: 9 years ago

Liquid trap seal in plumbing traps or waterproofing--water seal.

Sindhu said: 8 years ago

What is master trap? anybody explain,

Pavanrk25 said: 7 years ago

Seal always take 60-70mm.

Janeman gulati said: 9 years ago

What is water seal?

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