Practice question

Under ADR Chapter 9.2, what braking capability is mandatory for motor vehicles of category N3 (over 12 tonnes) intended for carriage of dangerous goods in tanks?

  1. Hydraulic drum brakes without ABS
  2. Mechanical handbrake on front axle only
  3. Anti-lock braking system (ABS) and endurance braking system (retarder)
  4. Air brake system with manual cable override

Answer: C — Anti-lock braking system (ABS) and endurance braking system (retarder)

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