38. Which of these is a good thing to remember when crossing or entering traffic with a heavy vehicle?
Detailed Explanation
The correct answer is "Heavy vehicles need larger gaps in traffic than cars.". This question tests general CDL knowledge and the safest action expected of a commercial driver. For a differently worded version of this question, identify the hazard first and then choose the answer that preserves control, visibility, or legal compliance.
Correct Answer: Heavy vehicles need larger gaps in traffic than cars.
Why This Matters on the CDL Test
Use this as part of your General Knowledge review. The real CDL knowledge test rewards drivers who understand the reason behind each rule, not only the answer letter, so read the explanation and then try a few related questions.
How to Remember It
Say the rule in your own words, then explain why the wrong answers are unsafe or incomplete. That habit makes similar General Knowledge questions easier when the exam changes the wording.
Answer Review
Choose "Heavy vehicles need larger gaps in traffic than cars." because this answer matches the safe CDL action for general knowledge knowledge. On the knowledge test, the safest answer is usually the one that protects space, control, visibility, legal compliance, or inspection accuracy before the vehicle is put at risk.
Why the other answers are weaker
- The best way to cross traffic is to pull the vehicle partway across the road and block one lane while waiting for the other to clear."The best way to cross traffic is to pull the vehicle partway across the road and block one lane while waiting for the other to clear." does not best answer this general knowledge knowledge question. When you see a similar option on the CDL permit test, compare it against the exact safety rule and choose the answer that prevents the most immediate risk.
- Because heavy vehicles are easy to see, you can count on other drivers to move out of your way or slow down for you."Because heavy vehicles are easy to see, you can count on other drivers to move out of your way or slow down for you." does not best answer this general knowledge knowledge question. When you see a similar option on the CDL permit test, compare it against the exact safety rule and choose the answer that prevents the most immediate risk.
Test-Day Checklist
- Read the question once for the topic, then read it again for the exact CDL action being tested in General Knowledge.
- Eliminate answers that sound convenient but skip an inspection, warning sign, or safety step.
- Say the correct rule out loud before moving on so you can recognize it when the exam changes the wording.
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Start Practice TestRelated Questions
196. You are driving a vehicle that could safely be driven at 55 mph on an open road; but traffic is now heavy, moving at 35 mph, although the speed limit is 55. The safest speed for your vehicle in this situation is most likely:
233. Which of these is a good thing to remember about drinking alcohol?
26. Which of these is the most important thing to remember about emergency braking?
30. Your truck is in a traffic emergency and may collide with another vehicle if you do not take action. Which of these is a good rule to remember at such a time?
331. Which of these statements about crossing traffic with a large vehicle is true?
Keep Studying General Knowledge
Question pages help you review one rule at a time. To build test-day speed, move back into the full General Knowledge practice test and answer a mixed set without looking at the explanation first.
State CDL Practice Paths
After you understand this answer, use a state practice path to connect the federal CDL rule with the DMV test pages drivers search for most.