Electric Traction
Which of the following is the disadvantage of electric traction over other systems of traction?

Short time power failure interrupts traffic for hours
Interference with communication lines
High capital outlay in fixed installations beside route limitation
Corrosion problems in the underground pipe work

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Electric Traction
Locomotive having mono-motor bogies

All of the listed here
Has better riding qualities due to the reduction of lateral forces
Are suited both for passenger as well as freight service
Has better coefficient of adhesion

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