Construction Sequence — Components of a Building Arrange the following in the typical order of construction and completion: 1. Windows 2. Walls 3. Floor 4. Foundation 5. Roof 6. Room (completed space)

Introduction / Context:
Reasoning problems often ask you to model construction logic. While real-world sequences can vary with building type, the exam expects a coherent order from substructure to superstructure to finishing, culminating in a usable room.

Given Data / Assumptions:

• 4 = Foundation, 2 = Walls, 1 = Windows, 5 = Roof, 3 = Floor, 6 = Completed Room.
• We assume a conventional masonry structure.

Concept / Approach:
First, the Foundation supports the building. Next, Walls rise to define the enclosure. Openings are framed and fitted (Windows) along with ongoing wall work. The Roof caps the enclosure. Flooring and interior finishes turn the enclosed shell into a habitable Room. Though some projects pour floors earlier, this standardized reasoning sequence is widely accepted in aptitude questions.

Step-by-Step Solution:

Verification / Alternative check:
Compare with a typical construction schedule: foundation → superstructure (walls/openings) → roofing → floor and finishes → handover. The chosen order aligns with this high-level flow and fits the available options best.

Why Other Options Are Wrong:

• A: Places windows before walls are even defined—impractical.
• C: Puts roof before walls; the roof needs support.
• D: Roof immediately after foundation also lacks structural support.
• None of the above: Not applicable since a workable standard sequence is present.

Common Pitfalls:
Assuming a single universal schedule. Sequences can vary; however, standardized tests prefer a logical dependency chain consistent with structural support and enclosure before finishes.

Final Answer:
4, 2, 1, 5, 3, 6