Respected Sir,
I am preparing for J.E of RRB
Chennai.Please send me all RRB Chennai solved
paper in the year of 2004 to till date.
My ID is musini_p@rediffmail.com

Thanking you sir,
Anand

Answer Posted / haresh

Pipe has denoted by ID and OD bz it has magnagible
thick.where in tube it only denoted by OD bz of negligible
thick.

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