While driving, your low air pressure warning light and buzzer activate. According to the CDL manual, at approximately what air pressure does this warning typically trigger?

Practise this CDL Class A question free, then download the PDF, watch the video walkthrough, or unlock timed mock exams for the full web bank.

Download PDF Watch video

Multiple choice — select the best answer

A60 psi
B45 psi
C100 psi
D90 psi

✓ Correct answer: A. 60 psi The CDL manual states the low air pressure warning device must activate before pressure drops below 60 psi, signaling the driver to stop safely and not continue driving.

.q-expl{display:block!important}.q-opt[data-idx="0"]{border-color:#16a34a;background:#f0fdf4}.q-opt[data-idx="0"] .oltr{background:#16a34a;color:#fff}.q-opt{cursor:default!important;pointer-events:none}

Keep practising. Use the free CDL Class A PDF, watch the YouTube walkthrough, or unlock all 10 web questions with timed mock exams.

Free PDF Video walkthrough

← Previous Next → 🎲 Random question ↩ Back to all questions

Keep practising

While driving, your low air pressure warning light and buzzer activate. According to the CDL manual, at approximately what air pressure does this warning typically trigger?

Related questions

Free practice here. Timed mocks when you are ready.