SSC JE Civil Engineering 23-Sep-2019 Shift 2 Solved Paper

A percentage of 3% to 5% is added for contingencies, to allow for petty expenditures, unforeseen expenditures due to changes in design, changes in rate, etc. which may occur during execution of the work. For big work or projects an amount of 1% to 1.5% of the estimated cost is also provided to purchase of special tools and plants for specific purpose.