Vertical Vent

Question 1

Horizontal ventilation will also facilitate the initial attack crew in making a “__” on the fire

Answer 1

push

Question 2

A diagnostic cut used to determine the type, direction, and spacing of rafters as well as the sheathing type and thickness of roof covering.

Answer 2

Inspection hole

Question 3

A small triangular hole cut through the roof decking (sheathing and roof covering material) made with the chain saw or an axe. They are used to indicate smoke and fire conditions directly below the opening.

Answer 3

Smoke indicator hole

Question 4

A hole placed directly over the fire, or as close to the fire as safety
allows, venting the products of combustion to the atmosphere. A Heat Hole is
generally placed at the highest point possible to vent convected smoke, heat and
gases.

Answer 4

heat hole

Question 5

A defensive ventilation opening created by removing a long narrow
section of roofing material well ahead of the fire. A trench cut is usually
performed across the width of the roof, from parapet to parapet, in coordination
with a heat hole.

Answer 5

trench cut

Question 6

Any pre-existing opening in a roof such as a skylight, scuttle
hole or roof vent.

Answer 6

natural openings

Question 7

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 7

roof scuttle

Question 8

A structure on the roof which allows light to travel to the interior of
the building. Skylights are usually constructed from glass or clear plastic. On
apartment buildings, skylights will be placed over hallways and stairwells, while
on commercial buildings, they may be placed over manufacturing areas.

Answer 8

skylight

Question 9

The direction that is upwind from the intended ventilation point (door,
window, or the selected location for a roof ventilation hole).

Answer 9

windward

Question 10

The direction that is downwind from the intended ventilation point
(door, window, or the selected location for a roof ventilation hole).

Answer 10

leeward

Question 11

Roofs built with conventional construction components typically withstand fire for ____
greater length of time than lightweight truss construction

Answer 11

a much

Question 12

When conducting ventilation operations on conventionally constructed roofs, if fire conditions permit, the heat hole should be cut____.

Answer 12

directly over the fire

Question 13

When exposed to fire, roofs built with lightweight truss
construction can fail ____, resulting in a significantly
diminished time frame for the roof team to conduct roof operations.

Answer 13

relatively quickly

Question 14

When conducting ventilation operations on lightweight
constructed buildings, ventilation teams ____conduct
operations directly over the fire.

Answer 14

shall not

Question 15

When using skylights for roof ventilation, it is imperative that firefighters remove them in a ____ manner.

Answer 15

systematic

Question 16

Skylights that have been removed or covered over can usually be identified by a slightly ____ of roofing material.

Answer 16

elevated rectangular or square section

Question 17

When conducting vertical ventilation operations firefighters must
employ the practice of

Answer 17

“trading space for time”

Question 18

A heat hole will also reduce the horizontal spread of fire as well as the potential for ____

Answer 18

flashover or backdraft

Question 19

On commercial structures a good starting point hole size is a 4’x 8’ hole

Answer 19

4’x 8’ hole

Question 20

A heat hole should be completed or the fire should be naturally ventilated
prior to initiating a ____operation

Answer 20

trench cut

Question 21

A trench should be completely cut from ____before any panels are pulled.

Answer 21

one end of the roof to the other

Question 22

An initial trench width of ____ can be sufficient to serve as a fire
stop with hose lines in place.

Answer 22

24-48 inches

Question 23

Care must be taken to avoid “____” the roof crew’s means of
escape.

Answer 23

trenching off

Question 24

When implementing a defensive strategy with a trench cut operation,
companies must be assigned and in place with ______

Answer 24

hose lines on the roof

Question 25

The trench itself will not ____ the fire; it is only expected to slow the spread temporarily while the hose lines extinguish it.

Answer 25

extinguish

Question 26

When a structure has a flat roof, ladders should be placed at ____of the building unaffected by fire.

Answer 26

corners

Question 27

Peaked roof ops A roof crew must establish a second means of egress off of the roof
as ____

Answer 27

soon as possible

Question 28

Most flat or arched roofs will require a ___ at a minimum and will often require multiple crews working together

Answer 28

full four-person truck crew

Question 29

Vertical ventilation should not be performed on small fires where
____ ventilation already exists

Answer 29

adequate

Question 30

A residential roof should not be cut after____

Answer 30

a fire is knocked down or
extinguished

Question 31

Lightweight roofs can fail within___minutes of structural fire
impingement.

Answer 31

five