The extra clearance on horizontal cures overthrows for BG and MG bogie lengths are.

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OSSC JE Civil Mains (Re-Exam) Official Paper: (Held On: 3rd Sept 2023)
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  1. 27230/R and 23510/R
  2. 27330/R and 23512/R
  3. 27430/R and 23514/R
  4. 27330/R and 23516/R

Answer (Detailed Solution Below)

Option 4 : 27330/R and 23516/R
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Explanation:

The extra clearance required on horizontal curves, also known as curve overthrow, is needed to accommodate the lateral displacement of railway vehicles when traversing a curve. This displacement depends on the bogie length and the radius of the curve.

For Broad Gauge (BG) and Meter Gauge (MG), the standard formula for calculating the extra clearance required is based on the bogie length and curve radius RR.

The correct values for extra clearance on horizontal curves for BG and MG bogie lengths are:

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