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
Answer: Option D
Related Questions on Estimating and Costing
A. Mid-section formula
B. Trapezoidal formula
C. Prismoidal formula
D. All the above
Size, capacity and materials need be specified for
A. Bib-cocks
B. Stop-cocks
C. Ball valves
D. All the above
The expected out turn of 12 mm plastering with cement mortar is
A. 2.5 sq m
B. 4.0 sq m
C. 6.0 sq m
D. 8.0 sq m
A. Excavation
B. Surface dressing
C. Cutting
D. Surface excavation
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