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

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

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

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

D. The water seal is less than that of ordinary traps
Be the first to comment if anything wrong with this mcq
Your comment successfully submitted!
It will automatically posted after review and approval by our staff member.