[Shipboard Firefighting] Flashcards

1
Q

What is the fire tetrahedron required for sustained combustion?

A

Fuel, oxygen, heat, and chain reaction

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2
Q

What is the fire triangle required for combustion?

A

Fuel, oxygen, and heat

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3
Q

Hydrogen fluoride (HF) is very toxic to humans. Concentrations above ___ parts per million (PPM) can be harmful and/or fatal.

A

3 PPM

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4
Q

How do you check a bulkhead or door for heat?

A

With the back of your hand

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5
Q

The lowest temperature at which a liquid gives off sufficient vapor to form an ignitable flame

A

Flashpoint

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6
Q

Heat that radiates back to the fuel

A

Radiation feedback

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7
Q

The transfer of heat through a solid body

A

Conduction

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8
Q

The lowest temperature at which sustained combustion will occur without the application of a spark or flame

A

Ignition temperature/ignition point

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9
Q

What are the four specific actions of agents?

A

1) Cooling
2) Smothering
3) Oxygen dilution
4) Chain breaking

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10
Q

What are the abundant byproducts of incomplete and complete combustion, respectively?

A

Carbon monoxide (CO) and carbon dioxide (CO2)

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11
Q

What is the purpose of ventilation?

A

To remove smoke and toxic gases

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12
Q

How long is the time delay for the FM 200 and the CO2 system?

A

60 seconds

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13
Q

How will FM 200 control cabinets or spaces containing valves or manifolds be conspicuously identified?

A

Red letters at least 2 inches high

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14
Q

What are the four positions of a firefighting team?

A

1) Nozzle man
2) Backup man
3) Hose team member
4) Plug man/hose team member

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15
Q

Chemical process in which a substance combines with oxygen

A

Oxidation

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15
Q

Fifth class of fire

A

Class K

Kitchen appliances that involve combustible liquids

Extinguisher: Wet chemical

16
Q

How much pressure is in an SCBA cylinder?

19
Q

Third class of fire

A

Class C

Energized electrical fire

Extinguisher: Secure power/CO2

20
Q

Second class of fire

A

Class B

Flammable liquids

Extinguisher: foam (AFFF)

21
Q

What should a crew member do upon discovering a fire?

A

Sound the alarm (continuous blast of ship’s whistle for not less than 10 seconds supplemented by the continuous ringing of the general alarm bells for not less than 10 seconds)

22
Q

What is the rapid oxidation of millions of vapor molecules?

A

Combustion

23
Q

What are the five stages of fire?

A

1) Ignition
2) Growth
3) Flashover
4) Fully-developed fire
5) Decay

24
Q

At what temperature will the FM 200 chemically break down?

A

At 1300 degrees, it turns into hydrogen fluoride

25
Q

Three types of alarms on Army watercraft

A

Audible, visual, and time delay

26
What is the investigator’s role in a fire emergency?
Be the eyes and ears for the OSL
27
The use of strategy, personnel, equipment, and systems to extinguish fires
Firefighting
29
Fourth class of fire
Class D Combustible metals Extinguisher: Dry powder DO NOT USE WATER DO NOT CONFUSE DRY POWDER WITH DRY CHEMICAL
30
The transfer of heat across an intervening space
Radiation
30
First class of fire
Class A Ash-producing Extinguisher: water
30
When should fire hoses be inspected?
During weekly fire drills
31
Which extinguishing agent should NOT be used on Class K fires?
Water
32
The transfer of heat through the motion of circulating gases or liquids
Convection
33
What are the two types of attacks?
1) Direct - straight stream method | 2) Indirect - fog stream method
34
What type of heat moves in all directions?
Radiant heat