Practice question

What color are the standardized pneumatic gladhand connectors (manoplas de acople de aire) connecting a tractor to a semi-trailer?

  1. Yellow for fuel, green for coolant
  2. Red for the Emergency / Supply line (línea de emergencia/suministro) and Blue for the Service control line (línea de servicio)
  3. Black for both lines with no distinction
  4. White and purple

Answer: B — Red for the Emergency / Supply line (línea de emergencia/suministro) and Blue for the Service control line (línea de servicio)

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