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A: Accidents due to contraction in winter can be avoided
B: Steel can be saved
C: Air gaps are necessary for bearing the weight of running train
D: Accidents due to expansion in summer can be avoided
E: All of these
Check Correct Option
Accidents due to expansion in summer can be avoided
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Everyday Science MCQs Test Preparation | Latest 2021 Quiz FPSC, NTS, KPPSC, PPSC, SPSC, BPSC, OTS, UTS, PTS, CTS, ATS, ETEA MCQs Test Questions.