Civil Engineering MCQs

A. Less and more
B. Less and less
C. More and less
D. More and more

A. 2 to 4
B. 4 to 6
C. 6 to 8
D. 8 to 10

A. Does not require alkalinity in water for flocculation
B. Does not affect ph value of water
C. Increases ph value of water
D. Decreases ph value of water

A. Dissolved organic substances
B. Dissolved solids and dissolved gases
C. Floating solids and dissolved inorganic solids
D. Bacteria and colloidal solids

A. 0.25 to 0.35 mm
B. 0.35 to 0.60 mm
C. 0.60 to 1.00 mm
D. 1.00 to 1.80 mm

A. Both a and r are true and r is the correct explanation of a
B. Both a and r are true but r is not the correct explanation of a
C. A is true but r is false
D. A is false but r is true

A. 0.2 to 0.4
B. 0.4 to 1.0
C. 2 to 4
D. 5 to 7

A. Less than that of slow sand filters
B. In between the filtration rate of slow sand filters and rapid sand filters
C. Greater than that of rapid sand filters
D. Equal to that of slow sand filters

A. Applied chlorine
B. Residual chlorine
C. Sum of applied and residual chlorine
D. Difference of applied and residual chlorine

A. 10 to 15
B. 20 to 25
C. 30 to 35
D. 40 to 50