In what order should you generally test the coupling connections after assembling a doubles combination, before driving?

Pick an answer

1. Check each coupling point individually, starting from the tractor and working back to the last trailer
2. Testing individual coupling points is unnecessary once the whole combination looks aligned
3. Check only the very last connection, since a good final link implies all the earlier ones are fine as well
4. Only check connections while backing, never while stationary

Correct!

Not quite. The correct answer is highlighted.