Fire Fighting And Prevention

Question 1

Which extinguishing agent is most effective on a mattress fire?
A.co2
B foam
C dry chemical
D water

Answer 1

D water

Question 2

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

Answer 2

B foam

Question 3

Portable foam fire extinguishers are designed for use on what type of fire?

Answer 3

A and b class fires (A. ordinary combustible materials. B. Flammable liquids

Question 4

A straight stream of water is most effective against which class of fire?

Answer 4

Class A

Question 5

Which extinguishing agent is best used on electrical fires?
A. Foam
B. CO2
C. Dry chemical
D. Water fog

Answer 5

B CO2

Question 6

What is the most effective way of applying carbon dioxide from a portable extinguisher at a fire?

Answer 6

Directing the gas at the base of the flames in a slow sweeping motion

Question 7

Any extinguishing agent used in a class C fire must have what important property?

Answer 7

Non- conductivity

Question 8

An important step in fighting any electrical fire is to?

Answer 8

De energize the circuit

Question 9

The first action which should be taken in event of fire on your vessel is to?

Answer 9

Sound the alarm

Question 10

Dry chemical fire extinguishers would be effective for what type of fire?
A. Burning oil
B. Electrical
C. Paint
D. All of the above

Answer 10

D. All of the above

Question 11

A fire in an electrical panel is what class fire?

Answer 11

Class C

Question 12

Which portable extinguishing agent should be protected from cold temps?
A. Foam
B. CO2
C. Dry chemical
D. All of the above

Answer 12

A foam

Question 13

A fire can spread by?
A. Conduction
B. Convection
C. Radiation
D. All of the above

Answer 13

D all of the above

Question 14

CO2 extinguishes a fire by doing what?

Answer 14

Displacing oxygen

Question 15

Foam extinguishes a fire by doing what?

Answer 15

Smothering the burning material

Question 16

The min type B-II Fire extinguisher would have a rated capacity of how many lbs?

Answer 16

35 lbs

Question 17

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

Answer 17

A carbon dioxide

Question 18

The lowest temperature at which liquid will give off sufficient vapors to form a flammable mixture with air is known as the?

Answer 18

Flash point

Question 19

When heat is transferred through solid material, the pro is called?

Answer 19

Conduction

Question 20

The best extinguishing agent for class “D” fire is
A. Dry chemical
B. Carbon dioxide
C. Foam
D dry powder

Answer 20

Dry powder

Question 21

Halon extinguishes a fire by?
A. Smoother if the fire
B. Cooling the fire
C. Breaking the chain reaction
D. All of the above

Answer 21

C. Breaking the chain reaction

Question 22

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

Answer 22

A. Shall be carbon dioxide type

Question 23

The number of fire extinguishers required on un inspected motor vessels in the machinery space is based on the vessels what?

Answer 23

Gross tonnage and brake horsepower