InspectionPregunta 43 de 60
When you check air lines during a combination inspection, which lines are you connecting and inspecting?
a.Only the fuel line
b.Only the electrical line
c.The service (blue) air line and the emergency (red) air line
d.The coolant and oil lines
Explicación
On a combination vehicle you inspect and connect the service air line, often blue, and the emergency air line, often red. The service line carries air for normal braking, and the emergency line supplies the trailer reservoir and controls the spring brakes. Both must be secure and leak-free.
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