Q
4. While driving, ice builds up on your wipers and they no longer clean the windshield. You should:
General Knowledgemedium
AKeep driving, and turn your defroster on. Drive slower until you can see again.
BKeep driving, and spray the windshield with washer fluid.
CStop safely and fix the problem.
Detailed Explanation
When iced wipers prevent adequate visibility, stop safely and restore a clear view before continuing.
Official reference: Oregon CDL Manual 2.13.1: Wipers and WashersCorrect Answer: Stop safely and fix the problem.
Why This Matters on the CDL Test
Visibility failure.
How to Remember It
Clear view first.
Answer Review
Restore visibility before proceeding.
Why the other answers are weaker
- Keep driving, and turn your defroster on. Drive slower until you can see again.Slower is not clear visibility.
- Keep driving, and spray the windshield with washer fluid.Do not continue without visibility.
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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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.
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