Indian Railways – Standard rail length (Broad Gauge): What is the standard length of rails adopted on B.G. (broad-gauge) track on Indian Railways?

Introduction / Context:
Broad Gauge (B.G.) lines form the backbone of Indian Railways. Knowing the standard rail length aids in understanding joint spacing, sleeper density, and historical maintenance practices.

Given Data / Assumptions:

• B.G. nominal gauge 1676 mm.
• Conventional jointed track context (prevalent before extensive LWR/CWR adoption).

Concept / Approach:
Historically, B.G. adopted a longer standard rail length than M.G. to reduce joints and improve ride. The commonly cited standard for B.G. is about 42 ft (≈12.8 m).

Step-by-Step Solution:
Recall B.G. standard ≈12.8 m.Match to the imperial option: 42 ft equals 12.80 m.Select 42 ft (12.80 m).

Verification / Alternative check:
Permanent-way texts and exam references align with 42 ft as the conventional B.G. standard rail length.

Why Other Options Are Wrong:

• 33 ft, 36 ft, 39 ft: shorter and associated with other gauges or earlier practices.
• None: incorrect because a correct value is listed.

Common Pitfalls:
Confusing M.G. (≈39 ft) with B.G. (≈42 ft).

Final Answer:
42 ft (12.80 m)