Irrigation Engineering
If L is total length of a canal in kilometers, P is total perimeter of its lining in metres and C is the cost of lining per square metre, the additional expenditure involved on lining, is

PC/100L
PL/1000C
PLC/1000
100 PLC

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Irrigation Engineering
Infiltration rate is always

less than the infiltration capacity
equal to or less than the infiltration capacity
more than the infiltration capacity
equal to or more than the infiltration capacity

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