Which of the following mechanical devices is used to ensure that route cannot be changed while the train is on the point even after putting back the signal?

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Bstretcher bar

Ciock bar

Dpoint lock

Correct answer

C. iock bar

Explanation

The correct answer is iock bar.

Which of the following mechanical devices is used to ensure that route cannot be changed while the train is on the point even after putting back the signal? - Answer and Explanation | Academy of Pakistan