The main factor to be considered while preparing a detailed estimate, is

Solution (By Examveda Team)

Definition: A detailed estimate is a comprehensive calculation of the quantities and costs of all items required for the execution of a construction project.

Main factors: While preparing a detailed estimate, several aspects must be considered, including the quantity of materials, their availability, and the transportation arrangements to the site.

Reason: The quantity of materials directly affects the total cost and ensures sufficient supply for uninterrupted work. The availability of materials determines procurement timelines and can influence choice of suppliers and scheduling. The transportation of materials impacts delivery efficiency, cost, and timely completion of the project.

Conclusion: All these factors are interlinked and crucial for accurate cost estimation and smooth project execution, hence all the above is the correct answer.