In Staircase Design, the horizontal part of a step where the foot is placed is called the _______ and the vertical distance between two steps is the _______.
- ARiser, Tread
- BTread, RiserCorrect
- CGoing, Nosing
- DPitch, Landing
Solution
Concept
Staircase Terminology
Formula
N/A
Step-by-step solution
1. Review the staircase terms requested in the question. 2. Recall that the horizontal surface for foot placement is called the Tread, while the vertical height between steps is called the Riser. 3. Match the definition to select Option (b) as the correct answer.
Explanation
The horizontal surface of a step where you place your foot is called the Tread. The vertical height or distance between two consecutive steps is called the Riser. Therefore, Option B correctly completes the statement.
Shortcut
To remember Tread vs. Riser in Staircase Design: - Tread (Flat/Horizontal): Think "Tread on it with your Feet" or "Top surface". - Riser (Vertical): Think "Rise up" as it goes upward.
Common mistake
A common mistake is selecting Option A by confusing the terms and reversing their order, mistakenly identifying the horizontal part as the Riser and the vertical distance as the Tread. Another frequent error is selecting Option C by confusing the overall horizontal distance (Going) or edge projection (Nosing) with the basic step components.
Correct answer: B) Tread, Riser