Fire Extinguishers Questions and Answers 100% Pass

Fire Extinguishers Questions and Answers 100% Pass List the 5 classifications of fire A- ordinary combustibles; B- flammable liquids C- energized electrical; D- flammable metals; K- Animal & vegetable oils Fire Extinguisher A a manually operated device for extinguishing small fires What are Fire Extinguishers used as? First line of defence against fires of limited size. What are the 4 ways in which a fire can be extinguished? removing access to oxygen, removing fuel, inhibiting the chemical chain reaction and removing heat. Describe class A fire extinguishers and it's symbol Class A fires have a fuel source consisting of common materials like paper, cardboard, lumber and plastics. Green Triangle Describe Class B fire extinguishers and it's symbol Class B fires are flammable or combustible liquids such as gasoline, kerosene or common organic solvents. Red Square Describe Class C Fire extinguishers and it symbol Class C fires have common fuel sources but are ignited by electrical equipment such as appliances, switches, panel boxes power tools, or hot plates. Blue Circle Describe Class D Fire extinguishers and it's symbol Class D fires involve combustible metals such as magnesium, titanium, potassium, sodium and pyrophoric organometallic reagents. Yellow Star Describe Class K Fire extinguishers Class K fires are kitchen fires and have fuels similar to those in class B (vegetable oil and animal oils). CO2 extinguishers are effective on which classes of fires? Class B and C. The Carbon Dioxide effectively suffocates the fire and leaves no residue What is the range of class A ratings? 1-A throught 40-A ________,________, and _________ fires must be extinguished for an extinguisher to receive a ___A through a __A rating Wood panel fire, excelsior fire and wood crib fire, 1 6 Are extinguishers being tested for a larger than 6 A rating subjected to all of these tests? Portable fire extinguishers that are tested for larger than a 6-A rating are only subjected to the wood crib test. With Class A rated extinguishers is any differential made relative to expert and non-expert operations? No What is the range of classifications for class