Civil Engineering - UPSC Civil Service Exam Questions - Discussion

24. 

A surface longitudinally centered on the extended runway centre line and extending outward and upward from each end of the primary surface is known as

[A]. conical surface
[B]. transition surface
[C]. approach surface
[D]. horizontal surface

Answer: Option C

Explanation:

No answer description available for this question.

Sajan Solanki said: (Apr 3, 2021)  
Explain the answer.

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