Architect’s scale vs. engineer’s scale – inch divisions An architect’s scale is divided into tenths (0.1) of an inch. Evaluate this statement.
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ACorrect
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BIncorrect
Answer
Correct Answer: Incorrect
Explanation
Introduction / Context: Understanding the difference between architect’s and engineer’s scales avoids reading errors on drawings. Architect’s scales use fractional-inch relationships to feet; engineer’s scales use decimal subdivisions of an inch.
Given Data / Assumptions:
- Architect’s scale: common graduations like 1/8 in = 1 ft, 1/4 in = 1 ft, 1/2 in = 1 ft, etc.
- Engineer’s scale: decimal divisions such as 10, 20, 30, 40, 50, 60 divisions per inch.
- Claim states architect’s scale is in tenths of an inch.
Concept / Approach: The statement confuses the two tools. The architect’s scale is not divided in tenths; that is the hallmark of the engineer’s scale. Architect’s scales are arranged to read feet and fractions thereof conveniently from fractional-inch drawings.
Step-by-Step Solution:
Identify the task: read building dimensions from a plan with fractional-inch scale.Use the architect’s scale matching the drawing ratio (e.g., 1/4 in = 1 ft).Observe that markings represent feet/inches via fractional-inch conversions, not decimal tenths.Therefore, the claim about tenths belongs to engineer’s scale, not architect’s.Verification / Alternative check: Inspect a physical architect’s and engineer’s scale to see their graduation schemes; all reputable drafting references make this distinction.
Why Other Options Are Wrong: “Correct” would imply architect’s scales are decimalized; they are not.
Common Pitfalls: Using the wrong scale for a given drawing; mixing up imperial fractional and decimal conventions; misreading small graduations.
Final Answer: Incorrect