Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 10 (Q.No. 23)

UPSC Civil Service Exam Questions

23.

Which one of the following statements best defines a 'level surface'?

A horizontal surface every element of which is normal to plumb line

A curved surface every element of which is perpendicular to the spheroidal shape of the earth

A plane surface which is perpendicular at all points to the direction of gravity

A curved surface which is perpendicular to the direction of gravity at every point

Answer: Option

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