IFSTA Chapter 6 & 7 Exam | Questions and Verified Answers| 100% Correct<\/p>\n\n\n\n
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<\/p>\n\n\n\n
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<\/p>\n\n\n\n
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
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