Vent cpt 5

Question 1

Vertical ventilation is a ___ of ventilation that utilizes convective heat currents
and increased pressure, created by high temperatures in a structure that is on fire, to
carry smoke up and out of a structure

Answer 1

natural form

Question 2

For the proper placement of the roof opening as close to the seat of the fire as possible,
firefighters should read the_____

Answer 2

ventilation profile, utilize a TIC, and communicate with
interior crews.

Question 3

A door to a stairway that pierces a flat roof

Answer 3

bulkhead door

Question 4

The puncturing of ceiling materials from above to allow smoke and heat to vertically exit a finished living space.

Answer 4

ceiling punch

Question 5

A heavy type of roof sheathing material that is up to three
inches in thickness

Answer 5

car decking

Question 6

The removal of heat, smoke and fire gases after
extinguishment of the fire.

Answer 6

smoke removal

Question 7

The opening of the roof covering or existing roof openings for the purpose of
allowing the products of combustion to escape into the atmosphere

Answer 7

coordinated vertical vent

Question 8

The direction that is downwind from the intended ventilation
point.

Answer 8

leeward side

Question 9

Attic space between a flat roof and the ceiling joists of the living
space below

Answer 9

cockloft

Question 10

Cuts that are made parallel to
rafters to ensure that the roof decking
within the hole spans no more than one
rafter

Answer 10

dicing

Question 11

The process of supplying air to and removing air from
an indoor space without using mechanical systems. Horizontal and
vertical ventilation tactics used by firefighters are forms of natural
ventilation.

Answer 11

Natural ventilation

Question 12

A three-sided diagnostic cut used to determine the type, direction, and spacing of rafters aswell as the sheathing type and thickness of the roof covering

Answer 12

inspection hole

Question 13

Procedure for removing sheathing boards from roof framing members performed by making a quick motion upward and back toward the firefighter using a long tool.

Answer 13

J hooking

Question 14

Smoke movement from a structure that shows flow paths of
heat and smoke out of the structure as well as air movement into the structure.

Answer 14

vent profile

Question 15

A small, covered opening that provides access to the roof from the
interior of a building. When used for ventilation purposes, scuttles must be
evaluated to ensure they access the space intended for ventilation. (Attic or
public hallway)

Answer 15

roof scuttle

Question 16

The roof ____ be opened until it has been visually confirmed that fire has extended to the attic or the top floor living spaces of the structure.

Answer 16

should not

Question 17

When fighting fires in balloon frame structures, It is especially important to have ___ ready before holes are opened in the walls, ceilings, or roof.

Answer 17

hose lines

Question 18

___ for smoke removal should not be used for in the walls of a
balloon frame structure until the fire has been completely extinguished.

Answer 18

Positive-pressure ventilation

Question 19

An attic fire that has been ventilated and then allowed to burn unchecked due to difficulty in reaching the fire with the hose stream can result in the ____

Answer 19

catastrophic failure of the roof structure.

Question 20

The initial categorization is a starting point that must be verified through
the cutting of an ____ when the crew arrives on the roof

Answer 20

inspection hole

Question 21

As a general rule, a conventionally constructed roof structure will sustain fire involvement
for ___ before failure of the roof should be expected.

Answer 21

20 minutes

Question 22

Tongue and Groove on the roof can span up to 12 feet Providing a roof opening in this
type of structure requires a special cutting technique known as a ____cut. This method
also referred to as a “__ cut” will be discussed in the cutting techniques section.

Answer 22

7-9-8, coffin

Question 23

Due to the small surface area to mass ratio, roofs built with lightweight construction can
withstand fire involvement for only__minutes before failure of the roof structure occurs

Answer 23

five

Question 24

A lightweight roof on a residential structure poses a much greater threat to those working
__ than under it.

Answer 24

on the roof

Question 25

Lightweight construction uses ____ sheathing that reacts differently than solid wood when subjected to heat.

Answer 25

plywood or orientated stand board (OSB)

Question 26

Small columns of smoke emanating from the decking indicates a __ that will not support the weight of a firefighter

Answer 26

loss of integrity

Question 27

If a prolonged operation is expected, extra fuel for saws should be taken to the ___

Answer 27

roof or staged at the turntable

Question 28

___ should be used when cutting flat roofs with a heavy tar roof covering.

Answer 28

Rotary

Question 29

__ saws should also be used on roofs with a steep slope

Answer 29

Rotary

Question 30

the ____ should be used when performing vertical ventilation on a roof with a slope greater than 8/12

Answer 30

rotary saw

Question 31

To prevent serious injury, the blade spin must be stopped by releasing the throttle and burying the blade into the roofing material ___ the blade it is removed from a cut.

Answer 31

every time

Question 32

Care should be used in selecting a ladder that will extend at least__ rungs above the eve

Answer 32

three

Question 33

If the first crew to the roof is not able to place the second ladder, they should request the placement from__

Answer 33

RIT or the next due truck

Question 34

The 45-foot ladder carried by most truck companies is ___ capable of reaching a the roof of a four story building.

Answer 34

usually not

Question 35

Roofs with a slope greater than __ will require a roof ladder to maintain safe footing while operating on the roof

Answer 35

8/12

Question 36

The roof ladder is intended to provide ___ and is not to be used to distribute the weight of the ventilation team on a weakened roof

Answer 36

good footing

Question 37

One of the most hazardous parts of roof operations is____

Answer 37

transitioning from the aerial ladder onto the roof

Question 38

The first member to the roof must have a sounding tool to determine if the roof is strong enough to support the weight of personnel before stepping onto it. The member that sounds the roof also determines the path of travel for other firefighters. This member should be the___

Answer 38

most experienced member of the crew.

Question 39

An inspection hole should be only big enough to gather the necessary information; usually no larger than about ___ inches on the sides that are at right angles to each other

Answer 39

18

Question 40

A ___ is a ventilation opening placed directly over the fire, or as close to the fire as safety allows, for the purpose of venting the products of combustion to the atmosphere

Answer 40

heat hole

Question 41

When breaching the ceiling, it is important to remember that the size of the hole in the ceiling must be _____ the size of the hole in the roof for the opening to be most effective.

Answer 41

equal to or greater than

Question 42

The coffin cut will create a heat hole that is up to ___ feet in size and can be easily expanded.

Answer 42

4 feet by 8

Question 43

Trench cuts can be used to cut off a rapidly extending cockloft fire at a pinch point. The pinch point or “__” could be defined as an area where a building narrows sufficiently to perform a successful operation before the fire can extend past that point.

Answer 43

throat

Question 44

A trench cut must be placed across the width of a flat roof to be effective, leaving only a ___ area of uncut roofing at each exterior wall for an egress path if necessary.

Answer 44

four-foot

Question 45

Glass skylight Break a single pane of glass and wait for___ seconds

Answer 45

ten