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Civil Engineering - Railways - Discussion

Discussion Forum : Railways - Section 4 (Q.No. 21)
Railways
21.
If D is the distance between parallel tracks G is the gauge and α is angle of crossings, the distance between theoretical noses of two crossings measured parallel to tracks, is
(D - G - G sec α) cot α
(D - G + G sec α) cot α
(D - G - G sec α) tan α
(D + G + G sec α) cot α
Answer: Option
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