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Estimation of material cost become easy by using
Price catalogue
Schedule of rates (S.O.R.)
Either a or b
None of above
Either a or b
Estimation of material cost is the process of calculating the total expenditure required for project resources. Both Price Catalogues and Schedules of Rates (S.O.R.) serve as fundamental reference documents providing standardized unit rates for labor and materials to facilitate accurate cost estimation.
Estimation of material cost is the process of calculating the total expenditure required for project resources. Both Price Catalogues and Schedules of Rates (S.O.R.) serve as fundamental reference documents providing standardized unit rates for labor and materials to facilitate accurate cost estimation.
TotalCost=тИСi=1nтАЛ(QiтАЛ├ЧRiтАЛ) тАФ where QiтАЛ is quantity and RiтАЛ is unit rate from catalogue or S.O.R.
Material cost estimation works by multiplying the quantities derived from material takeoff lists by the unit rates found in formal documents. A Price Catalogue provides market-driven pricing from specific suppliers, whereas an S.O.R. is typically a government or organizational document containing pre-approved, standardized rates for various work items used in public works or large engineering projects.
A Price Catalogue is issued by manufacturers or traders to list current selling prices.
S.O.R. is published by competent engineering authorities to regulate costs in government contracts.
Both methods ensure consistency and transparency in the tendering and procurement process.
Unit rates in S.O.R. usually include overheads and profit margins for contractors.
Reduces errors in manual price lookup.
Ensures standardization across multiple project estimates.
Simplifies the comparison of quotations from different vendors.
Price catalogues can become outdated quickly due to market volatility.
S.O.R. may not reflect sudden spikes in material costs until the next revision.
Electrical installation wiring estimates.
Public works project tendering.
Procurement planning in large industrial setups.
| Feature | Price Catalogue | S.O.R. |
|---|---|---|
Source | Manufacturer/Supplier | Govt/Engineering Body |
Purpose | Sales/Marketing | Budgeting/Tendering |
An S.O.R. is legally binding for government contracts to prevent arbitrary cost estimation.
Option A is limited to specific vendors, while Option B is broader and applicable for contract management.
C is correct тАФ Both Price Catalogues and Schedules of Rates provide the necessary unit price data to simplify the mathematical process of calculating total material costs.
In competitive exams, always remember that S.O.R. is the preferred reference for tendering, while Price Catalogues are used for quick market estimation and budgeting.