Which of the following braking systems on the locomotives is costly ?
(A) Regenerative braking on electric locomotives
(B) Vacuum braking on diesel locomotives
(C) Vacuum braking on steam locomotives
(D) All braking systems are equally costly
Which of the following braking systems on the locomotives is costly ?
(A) Regenerative braking on electric locomotives
(B) Vacuum braking on diesel locomotives
(C) Vacuum braking on steam locomotives
(D) All braking systems are equally costly
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