Pick up the incorrect statement regarding a master trap from the following:
A)it is provided in between the lower end of the house drain and the street sewer
B)it is provided a cleaning eye at the top of the trap
C)the mica flap valve which opens inwards only, is fitted at the top of the inlet pipe
D)the water seal is less than that of ordinary traps

Question

Quizplus · Accepted Answer

The water seal of a master trap is generally deeper than that of ordinary traps to ensure a better seal against the backflow of gases from the sewer into the house drainage system.

Pick Up the Incorrect Statement Regarding a Master Trap from the Following