Carpenter Red Seal Exam Prep · Question
A drawing is scaled at 1:100. If a wall measures 50 mm on the drawing, what is its actual length on site?
A scale of 1:100 means that 1 unit on the drawing represents 100 units in reality. Therefore, 50 mm on the drawing would be 50 mm * 100 = 5000 mm, which is 5 me
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Question: A drawing is scaled at 1:100. If a wall measures 50 mm on the drawing, what is its actual length on site?
Answer options:
- 500 mm (19.7 inches) ✅ 5 m (16 feet 5 inches)
- 0.5 m (1 foot 8 inches)
- 50 m (164 feet)
Correct answer: 5 m (16 feet 5 inches)
Explanation: A scale of 1:100 means that 1 unit on the drawing represents 100 units in reality. Therefore, 50 mm on the drawing would be 50 mm * 100 = 5000 mm, which is 5 metres.
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