Question

the order of a competent authority sanctioning a properly detailed estimate of the cost of a construction or repair work is called?​

Answer 1

Answer:

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

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

E. The water seal is less than that of ordinary traps.