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For a point in the first quadrant, after the planes are rotated into one, the plan lies

  • A.at the same distance above it as the elevation
  • B.below the reference line
  • C.above the reference line
  • D.on the reference line itself

Answer: B

Correct answer: below the reference line

A point in the first quadrant lies above the horizontal plane and in front of the vertical plane. When the horizontal plane is rotated downward into the vertical, everything in front of the vertical plane swings below the reference line, so the plan falls below it and the elevation stays above. That separation is what makes the two views readable on one sheet.

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