Chapter 4

Question 1

What are the 6 sides of confinement?

Answer 1

All 4 walls & below & above

Question 2

A properly designed and installed _____ is the most effective method of fire control and life safety in a structure

Answer 2

Sprinkler system

Question 3

A network of properly sized piping with sprinkler heads attached at specific locations

Answer 3

Sprinkler systems

Question 4

NFPA 13

Answer 4

Sprinkler systems

Question 5

System that contains water at all times. Not installed in buildings which temperature can fall below 40 degrees F

Answer 5

Wet pipe sprinkler

Question 6

System filled with air or nitrogen under pressure in lieu of water. Air pressure is usually between 15 and 50 psi. System needed in buildings where temperature could fall below 40 degrees F

Answer 6

Dry pipe sprinkler system

Question 7

System contains deluge type valves, fire detection devices, and closed sprinkler heads. Charges with air or nitrogen. Water only released into the system by an activated fire detection system

Answer 7

Pre action sprinkler system

Question 8

Open sprinkler heads and a deluge valve. Typically used in highly hazardous occupancies or where a fast spreading fire may occur

Answer 8

Deluge sprinkler system

Question 9

Combines piping system that supply water to both standpipe and the sprinkler heads are what class?

Answer 9

Class 1
Class 3

Question 10

Class 1 standpipe

Answer 10

2 1/2 hoses line connection for firefighter use
Typically required in building 3 floors or more and in malls

Question 11

Class 2 standpipe system

Answer 11

1 1/2 inch hose line connection
Often required in large unsprinklered buildings

Question 12

Class 3 standpipe system

Answer 12

Combination of class 1 & 2

Question 13

Contains piping that is filled with water at all times and have water supply that can meet the demand needed for firefighting

Answer 13

Automatic wet system

Question 14

Contains pipes that is filled with pressurized air and contain supply valves that release the water into the standpipe system when a valve is opened. Sufficient water pressure is automatically available for firefighting

Answer 14

Automatic dry system

Question 15

Piping that is normally filled with air and may or may not be pressurized. These systems are arranged to allow water into the system when a remote actuation device such as a pull station is operated. They require a pre connected water supply to support firefighting

Answer 15

Semi automatic dry system

Question 16

Contains piping that is filled with air and do not have a water supply connected to them. Fire department connection is provided so water can be manually supplied to the system.

Answer 16

Manual dry system

Question 17

Piping that filled with water to alleviate the time required to fill the system in the event of a fire. The water supply comes from connections to a domestic water supply, though the supply is not adequate to provide sufficient pressure for fire fighting. Fire department will need to pressurize the system

Answer 17

Manual wet system

Question 18

What areas should be checked first in a primary search

Answer 18

The area around the fire and directly above the fire

Question 19

Ladder placement for victim removal is

Answer 19

Head of the ladder even or slightly below the windowsill

Question 20

Ladder placed alongside the window and about 3 rungs above the windowsill

Answer 20

Entering a window

Question 21

Ladder placement for roof access

Answer 21

Extended at least 3 rungs above the roof

Question 22

Head of the ladder resting on the wall above the opening. Firefighter positioned on the ladder slightly below the center of the window

Answer 22

Play waterline in window

Question 23

Ladder placed on windward side of the opening, slightly above the top of window

Answer 23

For ventilation

Question 24

The correct positioning of the heel or base of the ladder will ensure that proper climbing angle is achieved. The desired angle is

Answer 24

75 degrees

Question 25

The correct positioning of the heel or base of the ladder will ensure that a proper climbing angle is achieved. The desired angle is?

Answer 25

75 degrees

Question 26

Proper method to climb a ladder is

Answer 26

Extend your arms and climb the ladder steadily on the balls of your feet, using your legs to do the climbing.

Don’t keep body near rungs

Question 27

Firefighters involved in roof operations should ensure that there are at least _____ means of egress from the roof

Answer 27

2 independently means of egress

Question 28

What occurs/ what is it called when heat and smoke reach the highest level within a fire area or building and starts banking downward?

Answer 28

Mushroom effect

Question 29

When breaking glass of a window break what panel first?

Answer 29

Break top panel to prevent being exposed to the heat of the fire

Question 30

Roof ventilation should be in conjunction with ____ on the upper floors

Answer 30

Horizontal ventilation

Question 31

A ventilation hole should be?

Answer 31

4 feet by 4 feet on small roofs
8 feet by 12 feet on large roofs

Question 32

____ and ____ are the most common types of hazards for firefighter on rooftops with solar panels

Answer 32

Tripping and slipping

Question 33

Hydraulic ventilation can be achieved by

Answer 33

Setting hose line with a nozzle on a fog pattern that covers 90% of the window or door opening through which smoke will be vented

Question 34

Placing exhaust fans into windows or doorways and pulling the smoke or toxic fumes from the building

Answer 34

Negative pressure ventilation

Question 35

Placement of fans to pressurize the interior of the structure and remove the products of combustion by driving fresh air into the building and forcing out the smoke via openings made by the fire department

Answer 35

Positive pressure ventilation

The size of the fans used must be in excess of 10,000 cubic feet per minute and often range to 20,000 cubic feet per minute

Question 36

What are the different types of ventilation?

Answer 36

Conventional
Hydraulic
Positive pressure
Negative pressure

Question 37

_____ should not be attempted until an initial ventilation hole of sufficient size is placed directly above the fire area

Answer 37

Trench cut

This is the # 1 rule

Question 38

A trench hole should be located in

Answer 38

The expected path of fire travel

Question 39

If a trench cut is being considered, openings or observation holes should be placed _____ the initial ventilation hole and the location near where the trench will be placed

Answer 39

Between

Question 40

Roof observation openings when doing a trench can be any shape. The most common are?

Answer 40

Kerf cut and triangular cut

Question 41

A trench consist of

Answer 41

2 parallel cuts approximately 30-36 inches apart

Not so narrow the fire could jump it, nor so wide that a firefighter could not step over it

Question 42

The primary cause of rekindles are

Answer 42

Incendiary fires and careless firefighting

Question 43

Frame and ordinary building construction have components that will contribute fuel to the fire. ____ may need to be opened to expose hidden fires

Answer 43

Flooring

Question 44

A building struck by lightning may require _______. The intense heat of the lightning can be conducted throughout the building by the piping and wiring starting many smoldering fires in the inner cavities

Answer 44

Extensive overhauling

Question 45

A cloud of dust can be _____

Answer 45

Explosive