A. 100 to 500
B. 500 to 1000
C. 1000 to 1500
D. 1500 to 2000
A. increases
B. decreases
A. remains unaffected
D. unpredictable
E. none of the above
A. Nitrites are formed
B. Nitrates are formed
C. Carbondioxide is formed
D. Ammonia is formed
A. Vs = 418 (Gs – Gw) d [(3T + 70)/100]
B. Vs = 418 (Gs – Gw)d² [(3T + 70)/100]
C. Vs = 218 (Gs – Gw)d² [(3T + 70)/100]
D. Vs = 218 (Gs – Gw)d [(3T + 70)/100]
A. 1 in 60
B. 1 in 80
C. 1 in 10
D. 1 in 400
A. 0.83
B. 0.6
C. 0.4
D. 0.3
E. none of the above
A. Should be sunk by 20 cm
B. Should be kept 20 cm above the adjacent portion
C. Should be sunk by 50 cm
D. Need not be sunk