Co-efficient of adhesion reduces due to the presence of which of the following?
A. Sand on rails
B. Dew
C. Oil on the rails
D. both (B) and (C)
Show Answer
Answer: D
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Co-efficient of adhesion reduces due to the presence of which of the following?
A. Sand on rails
B. Dew
C. Oil on the rails
D. both (B) and (C)
Answer: D
Share your understanding of this question with the correct explanation.