Q
What does a low air pressure warning signal mean?
General Knowledgeeasy
AAir pressure has dropped to an unsafe level
BThe fuel tank is full
CThe turn signal is on
Detailed Explanation
The low air pressure warning alerts the driver that the air brake system is below a safe pressure range.
Correct Answer: Air pressure has dropped to an unsafe level
Reviewed by Baha Mustafa, CDL holder, against official CDL manuals and FMCSA rules.
Advertisement
Ready to practice for real?
Take our free, full-length General Knowledge practice test. Simulates the actual DMV exam with timed questions.
Start Practice TestRelated Questions
When should an air brake driver test the low pressure warning signal?
General Knowledgeeasy
What does a low air pressure warning signal mean?
General Knowledgeeasy
What does a low air pressure warning signal tell a New York CDL driver?
General Knowledgeeasy
What does a low air pressure warning tell an Ohio CDL driver?
General Knowledgeeasy
What is the purpose of checking compressor governor cut-in and cut-out pressure?
General Knowledgeeasy
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.
Advertisement