Question

On a ten car train set up for two-conductor operation, the number of drum switches that must be set in the OFF position is ________.

Answer 1

In a ten car train set up for two-conductor operation, the number of drum switches that must be set in the OFF position is twice the number of cars, so it would be 20 drum switches.

Step-by-step explanation:

In a ten car train set up for two-conductor operation, each car needs to have an ON position and an OFF position for the drum switch. Since there are two conductors, each car needs two drum switches.

Therefore, the number of drum switches that must be set in the OFF position would be twice the number of cars. So, for a ten car train, the number of drum switches set in the OFF position would be 20.