Electric Traction
In India, electrification of railway track was done for the first time in which of the following years?

1940-1942
1920-1925
1935 - 1938
1925 - 1932

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Electric Traction
Coefficient of adhesion is

Low in case of D.C. traction than in the case of AC. traction
Equal in both AC. and D.C. traction
High in case of D.C. traction than in the case of AC. traction
All of the listed here

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