Final answer:
A good rule for backing a straight bus is to turn the steering wheel so that the front moves away from the direction in which you want the back of the vehicle to go.
Step-by-step explanation:
When backing a straight bus, a good rule to follow is to turn the steering wheel so that the front moves away from the direction in which you want the back of the vehicle to go. This means that if you want the back of the bus to go towards the left, you should turn the steering wheel to the right. By doing this, you will be able to safely back the bus in the desired direction.