Question

Which of the following statements regarding systems of plumbing for drainage of buildings is not correct?

(a) Only one pipe is used in the single stack system

(b) A separate vent pipe is provided in one pipe system

(c) The traps of basins are directly connected to the vent pipe in the partially ventilated single stack system

(d) The full form of S.W.P. is soil and waste pipe

I have been asked this question in a national level competition.

My doubt stems from Systems of Plumbing topic in chapter Plumbing for Buildings of Construction & Building Materials

Answer 1

The correct answer is (c) The traps of basins are directly connected to the vent pipe in the partially ventilated single stack system

The best explanation: There are various systems of plumbing for the drainage of buildings. Only one pipe is used in a single stack system. A separate vent pipe is provided in one pipe system. The traps of basins are not directly connected to the vent pipe in the partially ventilated single stack system.