is the amount provided in the estimate and bill of quantities for some specialised work to be done by a specialised firm; whose details are not known at the time of preparing estimate.

Related MCQs

•                                estimate is a detailed estimate and is prepared to maintain the structure or work in proper order and safe condition.
•                                  involves the preparation of tenders based on a typical or notional bill of quantities or schedule of works.
• Cube rate estimate is less accurate as compared to the plinth area estimate as the height of the building is also compared.
• A pumping set with a motor has been installed in a building at a cost of Rs.2500.00. Assuming the life of the pump as 15 years, work out the amount of annual instalment of sinking fund required to be deposited to accumulate the whole amount of 4% compound interest.
• In Schedule contract the contractor undertakes the execution or construction of specific work with all its contingencies, to complete it in all respect within a specified time for a fixed amount.
• A large work or project may consists of several building or small works and each of these work is known as                        
• Specification does not specify or describes the nature and the class off the work, materials to be used in the work, workmanship, etc.
• For storeyed building plinth area estimate is not prepared for each storey separately.
• A                    is very useful equipment and it can be used for construction work like to clear the site of work, to make the land level, etc.
• It is often difficult to estimate size at an early stage in a project when only a specification is available