A. Surface loading
B. Overflow rate
C. Overflow velocity
D. All of these
A. Size
B. Shape
C. Weight
D. None of these
A. Settleable solids
B. Suspended solids
C. Dissolved solids
D. None of these
A. 10% less
B. 20% less
C. 10% more
D. 20% more
A. Silting occurs at bottom
B. Scouring occurs at bottom
C. Both silting and scouring occur at bottom
D. Neither silting nor scouring occurs at bottom
A. 1 –
B. 1 –
C. ½ (1 –
D. ½ (1 –
A. Manually
B. Mechanically
C. Hydraulically
D. Electrically
A. 20 cm
B. 25 cm
C. 40 cm
D. 50 cm
A. Carbon dioxide
B. Nitrates
C. Sulphates
D. All the above
A. House sewer
B. Lateral sewer
C. Branch sewer
D. All of these