IFSTA Chapter 6 & 7 Exam | Questions and Verified Answers| 100% Correct

IFSTA Chapter 6 & 7 Exam | Questions and Verified Answers| 100% Correct Q: When an extinguishing agent is determined to be safe and effective for use on combustible metals, it will: A) include the test results on the face plate B) include application instructions on the faceplate C) be given a numerical rating based upon the amount of fire it can extinguish D) be a different color than extinguishers designed to extinguish other classes of fire Answer: B) include application instructions on the faceplate Q: Class K fires involve A) cooking oils B) combustible metals C) wood and paper products D) energized electrical equipment Answer: A) cooking oils Q: Class K rated extinguishers work because of , which converts fatty acids into a soapy film A) cooling B) smothering C) saponification D) chemical flame inhibition Answer: C) Saponification Q: Which method of extinguishment excludes oxygen from the burning process? A) cooling B) smothering C) saponification D) chemical flame inhibition Answer: B) smothering Q: How does chemical flame inhibition work to extinguish fire? A) Reduces burning material's temperature B) Excludes oxygen from the burning process C) Interrupts the chemical chain reaction in the burning process D) Forms oxygen- excluding soapy foam surface on burning material Answer: C) Interrupts the chemical chain reaction in the burning process Q: A (blank) extinguisher requires the operator to apply pressure to a pump that increases pressure within the container and forces the agent out the nozzle A) Manuel pump B) Stored pressure C) Manuel cartridge D) Pressure cartridge Answer: A) Manuel pump Q: Pump-type water extinguishers are intended primarily for use on: A) Class B fires B) Class D fires C) Ground cover fires D) Energized electricals equipment Answer: C) Ground cover fires Q: Stored pressure water extinguishers are used on Class fires A) A B) B C) C D) D Answer: A) A Q: What do manufacturers sometimes add to stored-pressure water extinguishers in order to increase their effectiveness? A) Dry powder B) Dry chemical C) Class A foam D) Class D foam Answer: C) Class A foam Q: On which type of fires are stored pressure water-mist extinguishers safe and effective to use? A) Class B B) Class C C) Combustible metals fires D) Combustible cooking oils fires Answer: B) Class C Q: Wet chemical stored pressure extinguishers are intended for use on fires A) Class A B) Class B C) Class D D) Class K