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1 ptsPTOfficial number: 4147

What Should a tram driver do, if upon switching on drive the shoe brakes fail to disinhibit?

Explanation

Correct answer: Undo the brake release

In the event of a failure of the automatic system, which should release the shoe brakes upon engaging drive, it is necessary to unlock them mechanically. Release mechanisms are used for this very purpose; their disengagement is a standard emergency procedure that allows the tram to move off.