Question

What would be the approximate weight of rail required for a particular track if the weight of locomotive axle load is 15000 tonnes?

1. 24510 kg
2. 39410 kg
3. 29410 kg
4. 35410 kg

Answer 1

Correct Answer - Option 3 : 29410 kg

Concept:

A rail is designated by its weight per unit length. The various important factors to be considered in deciding the weight of rail are:

1. Speed of Train

2. The axle load

3. The Gauge of Track

4.  Type of rails

5. Spacing of sleepers.

For India the ratio of the weight of rail in tonnes to the locomotive axle load in tonnes is fixed at 1: 510.

\(\frac{{{\rm{Weight\;of\;rail\;in\;tonnes}}}}{{{\rm{Locomotive\;axle\;load\;in\;tonnes}}}} = \frac{1}{{510}}{\rm{\;}}\)

Calculation:

Given data:

Weight of locomotive axle load, W_L = 15000 tonnes

Weight of rail required, W_R

So, 

\(\frac{{{W_R}}}{{{W_L}}} = \frac{1}{{510}}\)

\({W_R} = \frac{{15000}}{{510}} = 29.41\;tonnes = 29410\;kg\)