Fire I/II - Chapter 6 - Portable Extinguishers Questions and Answers Graded A+

Fire I/II - Chapter 6 - Portable Extinguishers Questions and Answers Graded A+ Portable fire extinguishers are classified according to the type of fire they are designed to extinguish A portable fire extinguisher must be labeled with the letters and symbols that designate the class rating How would a fire containing plastics be classified Class A Class A portable fire extinguishers are rated from 1-A through 40-A based upon the amount of water and duration and range of discharge used in extinguishing test fires Which material is a class B fuel Gasoline Which type of extinguishing agent is used to extinguish a Class B fire Carbon dioxide Which statement about Class C fires is accurate Once the electricity has been shut off to a Class C fire, it may be treated as a class A or Class B fire ___________ is an example of a Class D fuel Magnesium Which extinguishing agent should be used for a class D fire dry powder When an extinguishing agent is determined to be safe and effective for use on extinguishing combustible metals, it will include application instructions on the faceplate Class K fires involve cooking oils Class K rated extinguishers work because of ________ which converts fatty acids into a soapy film saponification Which method of extinguishment excludes oxygen from the burning process smothering How does chemical flame inhibition work to extinguish fire interrupts the chemical chain reaction in the burning process A ________ extinguisher requires the operator to apply pressure to a pump that increases pressure within the container and forces the agent out Manual pump pump type water extinguishers are intended primarily