Q
The difference between a level line and a horizontal line is that_______________?
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A
A. Level line is a curved line while hori-zontal line is a straight line
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B
B. Level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line
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C
C. Horizontal line is normal to plumb line while level line may not be normal to the plumb line
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D
D. Both are same
Correct Answer:
A. A. Level line is a curved line while hori-zontal line is a straight line
