SGI Class 1 Practice Questions - Saskatchewan Class 1 Commercial Driver Licence Written Exam

What is the purpose of the 'low air pressure warning' device?

To signal when the tires need inflation To alert the driver with a light and buzzer when air pressure drops below 60 psi (414 kPa) To indicate that the engine oil pressure is low To warn that the trailer cargo door is open

Correct Answer:

To alert the driver with a light and buzzer when air pressure drops below 60 psi (414 kPa)

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