When a rail loses its weight by 5%, it should be renewed and the old o – McqOptions

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1.	When a rail loses its weight by 5%, it should be renewed and the old one can be used on unimportant tracks, but the rails which have lost their weight by more than …., should not be used on any track under any circumstances.
A.	33.3%
B.	10%
C.	8%
D.	20%
Answer» C. 8%

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