Fire Fighting And Prevention Flashcards
Which extinguishing agent is most effective on a mattress fire?
A.co2
B foam
C dry chemical
D water
D water
Which of the following types of extinguishing agent is designed for use on flammable liquid fires?
A water
B foam
C dry powder
D compress air
B foam
Portable foam fire extinguishers are designed for use on what type of fire?
A and b class fires (A. ordinary combustible materials. B. Flammable liquids
A straight stream of water is most effective against which class of fire?
Class A
Which extinguishing agent is best used on electrical fires?
A. Foam
B. CO2
C. Dry chemical
D. Water fog
B CO2
What is the most effective way of applying carbon dioxide from a portable extinguisher at a fire?
Directing the gas at the base of the flames in a slow sweeping motion
Any extinguishing agent used in a class C fire must have what important property?
Non- conductivity
An important step in fighting any electrical fire is to?
De energize the circuit
The first action which should be taken in event of fire on your vessel is to?
Sound the alarm
Dry chemical fire extinguishers would be effective for what type of fire?
A. Burning oil
B. Electrical
C. Paint
D. All of the above
D. All of the above
A fire in an electrical panel is what class fire?
Class C
Which portable extinguishing agent should be protected from cold temps?
A. Foam
B. CO2
C. Dry chemical
D. All of the above
A foam
A fire can spread by?
A. Conduction
B. Convection
C. Radiation
D. All of the above
D all of the above
CO2 extinguishes a fire by doing what?
Displacing oxygen
Foam extinguishes a fire by doing what?
Smothering the burning material
The min type B-II Fire extinguisher would have a rated capacity of how many lbs?
35 lbs
Which of the following fixed extinguishing systems is approved for use onboard uninspected vessels?
A. Carbon dioxide
B. Steam smothering
C. chemical foam
D all of the above
A carbon dioxide
The lowest temperature at which liquid will give off sufficient vapors to form a flammable mixture with air is known as the?
Flash point
When heat is transferred through solid material, the pro is called?
Conduction
The best extinguishing agent for class āDā fire is
A. Dry chemical
B. Carbon dioxide
C. Foam
D dry powder
Dry powder
Halon extinguishes a fire by?
A. Smoother if the fire
B. Cooling the fire
C. Breaking the chain reaction
D. All of the above
C. Breaking the chain reaction
Fixed fire extinguishing systems aboard uninspected vessels
A. Shall be carbon dioxide type
B. Shall be steam type
C. Shall be the compres air type
D. Are not allowed
A. Shall be carbon dioxide type
The number of fire extinguishers required on un inspected motor vessels in the machinery space is based on the vessels what?
Gross tonnage and brake horsepower
