Question

The practice of taking a stretch when making up trains is to test the ________.

1) strength of the couplings
2) speed of the train
3) capacity of the engine
4) braking system

Answer 1

The practice of taking a stretch when making up trains is to test the strength of the couplings.

Step-by-step explanation:

The practice of taking a stretch when making up trains is to test the strength of the couplings. When making up a train, a stretch is created by leaving a small gap between the cars. This allows for the movement and flexibility of the couplings. When the train starts to move, the force exerted on the couplings will test their strength and ability to withstand the forces applied during operation.