Civil Engineering - Highway Engineering - Discussion

Discussion Forum : Highway Engineering - Section 4 (Q.No. 18)
18.
If a Lemniscate curve having an angle of deflection Δ, is transitional throughout, the maximum polar angle is
Δ/2
Δ/3
Δ/4
Δ/5
Δ/6
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
6 comments Page 1 of 1.

Nikhil dongre said:   5 years ago
For spiral curve - Δ/3.
For lemniscate curve - Δ/6.

Kicub said:   5 years ago
Lemniscate curve is transitional throughout means it does not have an intermediate circular curve. The answer E is correct.
(1)

Chavda said:   5 years ago
Thanks @Duhan.

Duhan said:   7 years ago
Deflection angle = Spiral ∠/3.
Polar angle= Spiral ∠/6 but in terms of deflection angle it is Deflection ∠/2.
So, the answer is A (Def. ∠/2).
(1)

Aamir baloch said:   7 years ago
Polar Angle;÷ 6 is correct.

Aniruddh said:   8 years ago
Why not B?

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