Units of Measurement MCQ with answer and solution

Concept

Standard units of measurement for building works as per IS codes.

Step-by-step solution

1. Identify the item of work: Damp Proof Course (DPC). 2. Recall IS 1200 specifications for DPC measurements. 3. Note that DPC is thin and its thickness is fixed, so measurements are taken in terms of surface area. 4. Therefore, the unit of measurement is square meter (sq. m or m²).

Explanation

According to standard specifications for estimation (IS 1200), the Damp Proof Course (DPC) is measured in square meters. This is because it is a thin layer applied horizontally or vertically on walls, where thickness is generally specified (e.g., 25 mm or 50 mm) and only the area needs to be calculated.

Why the other options are wrong

B: Cubic meter is used for bulk concrete works like foundations or RCC members. C: Running meter is used for cornices, expansion joints, or skirtings in some contexts. D: Kilogram is used for steel reinforcement or structural steel items.

Shortcut

Think of any sheet-like or surface application with a fixed standard thickness (like DPC, plastering, pointing, flooring) — they are always measured in square meters.

Common mistake

Confusing it with running meter (thinking it follows the length of the wall) or cubic meter (thinking of concrete volume).