A. Horizontally
B. Vertically
C. At an angle of 30°
D. At an angle of 60°
Related Mcqs:
- The asbestos cement sewers are_________________?
A. Light in weight
B. Not structurally strong to bear large compressive stress
C. Susceptible to corrosion by sulphuric acid
D. All the above - Cement concrete sewers are only suitable if non-scouring velocity is between_________________?
A. 2.5 to 3.0 m/sec
B. 3.0 to 4.0 m/sec
C. 3.5 to 4.5 m/sec
D. 4.5 to 5.5 m/sec - For drainage pipes in buildings the test applied before putting them to use, is__________________?
A. Water test
B. Smoke test
C. Straightness test
D. All the above - ¾th or ¼th extra space is left in sewer pipes at maximum discharge for_________________?
A. Low estimates of the average and maximum flows
B. Large scale infiltration of storm water
C. Unexpected increase in population
D. All the above - Hume steel pipes are__________________?
A. Steel pipes
B. Steel shell coated from inside with cement mortar
C. Steel shell coated from outside with cement mortar
D. Both B. and C. - Sewer pipes need be checked for_________________?
A. Minimum flow
B. Maximum flow
C. Both A. and B.
D. None of these - Which one of the following tests is used for testing sewer pipes ?
A. Water test
B. Ball test
C. Mirror test
D. All of these - You are asked to design sewer pipes of diameters 0.4 m to 0.9 m at maximum flow, you will assume the sewer flow running at___________________?
A. Full depth
B. Half full
C. Two third full
D. Three fourth full - 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 - Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for__________________?
A. Unexpected large scale infiltration of stream water
B. Unexpected increase in the population
C. Under estimates of maximum and average flows
D. All of the above
