Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275 × 25 ×13 cm with 75 cm sleeper spacing is

Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of s

1.	Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275 × 25 ×13 cm with 75 cm sleeper spacing is
A.	15 cm
B.	20 cm
C.	25 cm
D.	30 cm
Answer» D. 30 cm

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Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275 × 25 ×13 cm with 75 cm sleeper spacing is

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