Q: _______ is a welded rail that contracts and expands throughout its length. _______एक वेल्डेड रेल है जो अपनी पूरी लम्बाई में संकुचन और प्रसार करती है।
A.
Continuous welded rail /सतत् वेल्डेड रेल
B.
Short welded rail /छोटी वेल्डेड रेल
C.
Long welded rail/ लम्बी वेल्डेड रेल
D.
Buffer rail/ बफर रेल
Correct Answer:
Option B - ,,,,
B. ,,,,
Explanations:
,,,,
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