Question

As per the Indian Railways, the maximum height and maximum width of the rolling stock for Broad Gauge (BG) is ___ mm and ___ mm respectively.

• A. 3455 mm and 3250 mm
• B. 4830 mm and 3600 mm
• C. 4140 mm and 3250 mm
• D. 3455 mm and 2745 mm

Hint:

The maximum dimensions of rolling stock (loading gauge) in railways are critical for ensuring clearance with infrastructure like tunnels, bridges, and platforms. For Indian Railways Broad Gauge, the standard maximum height is 4140 mm, and the maximum width is 3250 mm, as per the Schedule of Dimensions.

Answer 1

The Correct Option is C

Step 1: Identify the given data.
The question asks for the maximum height and maximum width of rolling stock for Broad Gauge (BG) as per Indian Railways standards. The options are:
(1) 3455 mm and 3250 mm
(2) 4830 mm and 3600 mm
(3) 4140 mm and 3250 mm
(4) 3455 mm and 2745 mm
We need to determine the correct dimensions based on Indian Railways specifications.
Step 2: Recall the Indian Railways standards for Broad Gauge rolling stock.
Indian Railways defines a loading gauge or maximum moving dimensions for rolling stock to ensure safe operation on tracks, considering factors like platform clearances, tunnels, and overhead structures. For Broad Gauge (BG), which has a track gauge of 1676 mm, the maximum dimensions of rolling stock are specified in the Indian Railways Schedule of Dimensions (SOD).
The maximum height of rolling stock for BG is typically 4140 mm (4.14 m), which ensures clearance under overhead structures like bridges and wires.
The maximum width is typically 3250 mm (3.25 m), which ensures clearance from platforms and other trackside structures.
These dimensions are for standard rolling stock, though special stock (e.g., double-stack containers) may have different limits.
Step 3: Compare the options with the standard dimensions.
Option 1: 3455 mm and 3250 mm
The height (3455 mm) is less than the standard maximum of 4140 mm, and while the width (3250 mm) matches, this option does not reflect the maximum height allowed.
Option 2: 4830 mm and 3600 mm
The height (4830 mm) and width (3600 mm) both exceed the standard maximums of 4140 mm and 3250 mm, respectively, making this option unrealistic for standard BG rolling stock.
Option 3: 4140 mm and 3250 mm
The height (4140 mm) and width (3250 mm) match the standard maximum dimensions for BG rolling stock as per Indian Railways.
Option 4: 3455 mm and 2745 mm
The height (3455 mm) is below the maximum, and the width (2745 mm) is significantly less than the standard maximum of 3250 mm, making this option incorrect.
Step 4: Verify the dimensions.
The dimensions 4140 mm (height) and 3250 mm (width) align with the Indian Railways Schedule of Dimensions for Broad Gauge. These values ensure safe operation while maximizing the capacity of the rolling stock. Note that historical or smaller rolling stock might have smaller dimensions (e.g., 3455 mm height), but the question asks for the maximum allowed.
Step 5: Select the correct option.
The maximum height and width of rolling stock for Broad Gauge as per Indian Railways are 4140 mm and 3250 mm, respectively, matching option (3).
\[ \boxed{4140 \, \text{mm and} \, 3250 \, \text{mm}} \]