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A point in the first quadrant lies

  • A.above the horizontal plane and in front of the vertical plane
  • B.below the horizontal plane and behind the vertical plane
  • C.above the horizontal plane and behind the vertical plane
  • D.below the horizontal plane and in front of the vertical plane

Answer: A

Rotating the horizontal plane downward then places the elevation above the reference line and the plan below it. Almost all engineering drawing is done in this quadrant, which is why the arrangement becomes second nature.

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