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BC Air Brake Practice · Question

Scenario 59: If the air system loses all air pressure, the vehicle:

Spring brakes provide fail-safe parking braking when air pressure drops too low — the vehicle stops, but driver loses control over when/where. The correct answe

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Question: Scenario 59: If the air system loses all air pressure, the vehicle:

Answer options:

  • Loses all braking ✅ Comes to a stop because spring brakes apply automatically
  • Continues without brakes
  • Loses steering

Correct answer: Comes to a stop because spring brakes apply automatically

Explanation: Spring brakes provide fail-safe parking braking when air pressure drops too low — the vehicle stops, but driver loses control over when/where. The correct answer is "Comes to a stop because spring brakes apply automatically". This capacity-fill scenario 59 reinforces the same competency for the airbrake bank and follows the certified explanation standard.

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