IFSTA Ch 7 Fire Extinguishers UPDATED
ACTUAL Exam Questions and CORECT
Answers
NFPA 10 - CORRECT ANSWER - Standard for Portable Fire Extinguishers
Class A - CORRECT ANSWER - Ordinary combustibles - textiles, paper, plastics, rubber and
wood.
Dry Chemical - CORRECT ANSWER - Extinguishing system that uses dry chemical as the
primary extinguishing agent; often used to protect areas containing volatile flammable liquids.
Do not use on class D fire.
Class B - CORRECT ANSWER - Flammable and combustible liquids and gases, alcohol,
gasoline, fuel oil; things that cannot be cooled by water to effect extinguishment. The best way to
extinguish a fuel fire is to shut off the source. Extinguishing agents which may be used are dry
chemical, carbon dioxide and foam.
Class C - CORRECT ANSWER - energized electrical equipment
Class D - CORRECT ANSWER - combustible metals and alloys, types of fires can be
identified by bright white emissions during the combustion process.
Dry powder - CORRECT ANSWER - Extinguishing agent suitable for use on combustible
metal fires.
Class K - CORRECT ANSWER - Combustible cooking oils and fats
ACTUAL Exam Questions and CORECT
Answers
NFPA 10 - CORRECT ANSWER - Standard for Portable Fire Extinguishers
Class A - CORRECT ANSWER - Ordinary combustibles - textiles, paper, plastics, rubber and
wood.
Dry Chemical - CORRECT ANSWER - Extinguishing system that uses dry chemical as the
primary extinguishing agent; often used to protect areas containing volatile flammable liquids.
Do not use on class D fire.
Class B - CORRECT ANSWER - Flammable and combustible liquids and gases, alcohol,
gasoline, fuel oil; things that cannot be cooled by water to effect extinguishment. The best way to
extinguish a fuel fire is to shut off the source. Extinguishing agents which may be used are dry
chemical, carbon dioxide and foam.
Class C - CORRECT ANSWER - energized electrical equipment
Class D - CORRECT ANSWER - combustible metals and alloys, types of fires can be
identified by bright white emissions during the combustion process.
Dry powder - CORRECT ANSWER - Extinguishing agent suitable for use on combustible
metal fires.
Class K - CORRECT ANSWER - Combustible cooking oils and fats
