Analysis of Rates for Sanitary and Water Supply MCQ

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• The diameter of a domestic sewer pipe laid at gradient 1 in 100 is recommended to __________
  ক

  100 mm

  খ

  150 mm

  গ

  210 mm

  ঘ

  400 mm
• Anti-siphonage pipe is connected to __________
  ক

  top of P trap W.C

  খ

  main soil pipe

  গ

  bottom of P trap W.C

  ঘ

  side of water closet
• Laying of pipes shall proceed up grade of slopes. The error of grade shall not be rectified by packing up earth underneath the pipes.
  ক

  True

  খ

  False
• The maximum distance between manholes shall be 30 meter unless specially permitted otherwise.
  ক

  True

  খ

  False
• The mirror shall be mounted on Asbestos sheets or 60mm plywood with brass counter sunk screws with washers and detachable G.P. caps.
  ক

  True

  খ

  False
• This shall be of Chromium plated brass and approximately 25mm in diameter.
  ক

  True

  খ

  False
• For the wash basin, all the accessories wherever necessary shall be painted in 2 coats or more with approved enamel paint.
  ক

  True

  খ

  False
• For sanitary purpose galvanised iron pipes and specials shall be of class “C” heavy type, first quality and shall conform to IS 1239 be used.
  ক

  True

  খ

  False
• For urinals which of the below options will not be present?
  ক

  Vitreous Chinaware urinal stall of 11p type as specified in the material schedule

  খ

  5 litre capacity C.I automatic flushing cistern with all accessories

  গ

  12 mm dia. C.P. brass, flush pipe

  ঘ

  2mm Chromium plated brass waste coupling
• The Indian Water Closet shall not consist of _____________
  ক

  the brickbat lime or cement concrete required to be filled around the entire space of the W.C. pan properly rammed and consolidated without damaging the pan

  খ

  C.I. soil waste pipe bend with cleaning cap extending upto Gulley Trap Chamber beyond the “P” trap

  গ

  best Indian make Water Closet pan of 127mm (i.e. 05″) size with “P” or “S” trap in white glazed earthenware

  ঘ

  low level flushing cistern of 15 litres capacity ‘Fordham’ or equivalent make, porcelain enamelled with all fittings and accessories with 32 mm flush chromium plates flush bend