Practice question

Hermetically closed tanks (safety-device letter H) are designed to:

  1. Remain closed without a breather device as defined in ADR 1.2.1 / 6.8
  2. Vent freely to atmosphere at all times
  3. Operate without pressure-relief considerations
  4. Carry only excepted quantities

Answer: A — Remain closed without a breather device as defined in ADR 1.2.1 / 6.8

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