Civil Engineering Mcqs

Nitrogen cycle of sewage, is____________________?
  • (A)  Liberation of ammonia-formation of nitrites-formation of nitrates-liberation of nitrogen
  • (B)  Liberation of nitrogen-liberation of ammonia-formation of nitrites- formation of nitrates
  • (C)  Liberation of nitrogen-formation of nitrates-formation of nitrites-liberation of ammonia
  • (D)  Formation of nitrates-formation of nitrites-liberation of nitrates-liberation of nitrates
Stone ware pipes are_______________?
  • (A)  Highly resistant to sulphide corrosion
  • (B)  Highly impervious
  • (C)  Hydraulically efficient because of their smooth interior surface
  • (D)  Especially suited to pressure pipes
The sewers___________________?
  • (A)  Must be of adequate size to avoid over flow
  • (B)  Must flow under gravity ½ to ¾ full
  • (C)  Must be laid at least 2 to 3 m deep to collect /water from the basements
  • (D)  All the above