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Selection practice questions

24 questions from the portable fire extinguisher technician practice test.

Selection practice test

10 questions, graded as you go, with the reason for every answer. No sign-up.

What this covers

Sample questions

What is the maximum travel distance to a Class K extinguisher from the cooking hazard?

  1. 30 feet
  2. 50 feet
  3. 75 feet
  4. 10 feet
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A. 30 feet

Class K extinguishers must be within 30 feet of travel of the hazard because a cooking oil fire grows fast. The 75 foot figure is the Class A and Class D limit.

Reference: NFPA 10: Class K distribution

Travel distance to an extinguisher is measured

  1. In a straight line through walls and partitions
  2. From the main exit door to the extinguisher
  3. From the center of the floor to each corner
  4. Along the path a person would actually walk
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D. Along the path a person would actually walk

Travel distance is the real walking route around partitions, machines and shelving. A straight-line radius on a drawing can look fine and still fail once the obstructions are counted.

Reference: NFPA 10: selection and distribution

Under OSHA general industry rules, the travel distance to an extinguisher for Class B hazards may be no more than

  1. 75 feet
  2. 100 feet
  3. 50 feet
  4. 25 feet
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C. 50 feet

OSHA sets 50 feet for Class B hazards and 75 feet for Class A and Class D. NFPA 10 uses 30 or 50 feet for Class B depending on the size of the unit.

Reference: 29 CFR 1910.157(d)(4)

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