Practice question

When charging a supply line from a hydrant to a pumper, the hydrant operator should:

  1. Open the hydrant quickly to maximum flow
  2. Open the hydrant slowly to avoid water hammer
  3. Open and immediately close to bleed air
  4. Leave the hydrant closed until the pumper signals

Answer: B — Open the hydrant slowly to avoid water hammer

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Practice more: NFPA D O Apparatus Practice Questions - NFPA 1002 Driver/Operator - Apparatus (Pumper) Certification Exam Exam →