Civil Engineering Mcqs

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
The correct Prismoidal formula for volume is________________?
  • (A)  D [first area + last area + Even area + 2 odd areas]
  • (B)  D/3 [first area + last area + 4 Even area + 2 odd areas]
  • (C)  D/3 [first area + last area + 2 Even area + 4 odd areas]
  • (D)  D/6 [first area + odd areas]