Block back are used at?
A. On Single line
B. On Double line
C. Single/Double line both
D. None of these
Answer: Option C
This Question Belongs to General Knowledge >> Indian Railway
Related Questions on Indian Railway
In which Governor - General's reign railway lines in India were established?
A. Lord William Bentick
B. Lord Cornwallis
C. Lord Kenning
D. Lord Dalhousie
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