In a bill of quantities, what does a provisional sum normally represent?
Correct answer: A. An allowance for work not sufficiently defined at tender stage
- A. An allowance for work not sufficiently defined at tender stage
- B. A fixed payment for work already completed on site
- C. A deduction made for defective materials after inspection
- D. An advance paid to the contractor before mobilisation
Explanation
A provisional sum is an allowance for work whose scope or quantity cannot be defined accurately when tenders are invited. It is later replaced or adjusted using the actual approved work and its measured cost.
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Construction management covers planning, scheduling, resource control, contracts, procurement, site organisation, safety, quality assurance and project documentation. Estimation includes quantity take-off, rate analysis, bill preparation, valuation and cost control, with attention to the difference between direct and indirect costs and between an estimate, a tender and a final account.
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