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Gopal Sharma • 38.32K Points
Coach

Q. The main purpose of welding rails is to ?

  • (A) build up the worn-out parts of points and crossings
  • (B) build up the battered or worn heads of rail ends
  • (C) to rebuild those portions of rail ends, which are burnt due to slipping of wheels of applying brakes
  • (D) all of the above
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