Boating Coach US
Pollution and the environmentQuestion 335 of 352

In a no-discharge zone, which way secures a Type I or Type II device?

  1. Padlock the seacock closed
  2. Tell the crew not to flush
  3. Put a sign on the toilet
  4. Turn the pump off only
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Correct answer: Padlock the seacock closed

A locked, tied or handle-removed seacock cannot be opened by mistake. A sign alone is not enough.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 159: Marine Sanitation Devices, § 159.7 Requirements for vessel operators

All questionsPractice the topic "Pollution and the environment"

Questions last reviewed: 18 October 2026