21. You should check trailer height before connecting a converter dolly to a second or third trailer. The trailer height is right when:
The trailer will be raised slightly when the converter dolly is backed under it
22. The best way to keep brakes from getting too hot while going down long grades is to:
Go slow and use only light, steady pressure on the brakes
23. You are driving a 100-foot truck with double trailers at 30 mph. The road is dry and visibility is good. You should keep at least ______ seconds of space ahead of you.
10
24. When driving a truck with more than one trailer, which trailer should be first behind the truck?
The heaviest
25. You are driving at night and you must dim your headlights for traffic. Good speed management says you should:
Slow down.