Illinois CDL — General Knowledge practice
Sharing the Road
Driving safely around motorcycles, bicycles, large trucks, pedestrians, and school buses — and knowing who has the right of way.
14 questions · pass with 11 correct. You get instant feedback and an explanation after every answer.
Study questions with answers
12 sample Sharing the Road questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.
1. How does keeping a longer following distance help when you are being tailgated?
Correct answer: It lets you slow gradually and gives the tailgater room to pass
Extra space ahead means you can slow gradually instead of braking hard, and it opens room for the tailgater to move around you, lowering the chance of a rear-end crash.
2. A large vehicle can hide hazards from drivers behind it. How should you help them?
Correct answer: Flash your brake lights to warn of a hazard ahead
Because your size can block their view of trouble ahead, alert the drivers behind you by tapping your brake lights when you spot a hazard that will make you slow down.
3. What is the best overall advice about driving in fog?
Correct answer: Avoid driving in it if possible, and slow before entering
If you can, avoid driving in fog altogether. If you must drive, slow down before you enter it and do not assume the fog will thin out ahead.
4. An oncoming vehicle's high beams briefly blind you at night. What should you know about recovering?
Correct answer: It can take several seconds to recover
Bright light can blind a driver briefly, and it may take several seconds to recover your vision. Look toward the right edge of the road to keep your lane while your eyes recover.
5. Why should you avoid quick moves when a vehicle is following you too closely?
Correct answer: A close follower has little time to react to them
Sudden changes give the tailgater little time to react. Smooth, gradual moves and extra space ahead reduce the chance the close follower rear-ends you.
6. Another driver waves for you to signal when it is safe for them to pass. What should you do?
Correct answer: Do not signal them; never direct other traffic
Do not try to direct traffic or signal others when it is safe to pass. If you are wrong, you could cause a crash and be held responsible for it.
7. Why should you slow down when you can only use low-beam headlights at night?
Correct answer: Low beams do not light the road as far ahead
Low beams light the road for a shorter distance than high beams, so you cannot see as far ahead. Reducing speed keeps your stopping distance within that shorter sight distance.
8. At dawn, dusk, or in rain or snow, what should you turn on to be seen?
Correct answer: Your headlights on low beam
In low-visibility conditions, turn on your headlights using the low beams — not just clearance or identification lights — so others can see you.
Source: Illinois CDL Guide — Sec. 2.5, Communicating Your Presence
9. Around a school bus, how far can the danger zone extend from the front bumper?
Correct answer: Up to 30 feet
The danger zone can reach as far as 30 feet in front of the bus, with the closest 10 feet being the deadliest, plus roughly 10 feet on each side and to the rear.
10. How should you deal with a driver who appears distracted next to or ahead of you?
Correct answer: Give them plenty of room and keep your distance
Leave a distracted driver lots of space and hold your safe following distance, since they may act unpredictably and are slow to notice hazards.
11. You are being tailgated by another vehicle. What is a good way to reduce the danger?
Correct answer: Increase your following distance and avoid sudden moves
Avoid quick changes and increase your own following distance so there is more room ahead. That cushion also gives a close follower a clearer chance to move around you.
12. Before making a tight, slow turn in a large vehicle, how can you warn drivers behind you?
Correct answer: Brake early and slow down gradually
Most car drivers do not realize how slowly a big vehicle must take a tight turn, so brake early and slow gradually to give following drivers plenty of warning.