13. Vertical Ventilation Flashcards

1
Q

Observing the conditions of the roof-

A

To Read the roof

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2
Q

To test the conditions of the roof—

A

To sound the roof

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3
Q

Once firefighters are on the roof, they should test the roof by:

A

Gently bouncing on it while holding onto the ladder or parapet wall with one hand.

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4
Q

Chainsaws used for forcible entry organization are usually equipped with ______to allow cutting through Neals and Wine cage metal components.

A

Carbide tipped chains

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5
Q

The cutting procedure used with chainsaws is very similar to that used with rotary saws. One difference is that the operator should first:

A

Make sure that the chain oiler is working

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6
Q

One use of a pig knead axe during vertical ventilation is for:

A

Scraping away pea gravel or slag from areas to be cut with a power saw

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7
Q

The pitch of the roof is expressed in:

A

Inches of fall per horizontal foot.

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8
Q

The most common examples of pitched roofs are: (4answers)

A

Gable

Hip

Lantern

Shed

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9
Q

Type of roof consisting of a high gabled roof with a vertical wall above a downward pitch shed roof section on either side.

A

Lantern roof

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10
Q

Heavy duty trusses with sloping ends. The top cord is shorter than the bottom cord, and when it installed the bottom cord rest on the outside walls.

A

Bridge truss

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11
Q

Because of the shape of ____, they form a roof that is very similar to the modern mansard roof.

A

Bridge truss roofs

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12
Q

Style of roof that has a double slope on each of its four sides. Forms a slight hipped peak or ridge.

A

True Mansard roof

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13
Q

Style of roof that has a double slope on each of its four sides. Has a flat roof center portion. Characteristics of both flat and pitched roofs.

May include overhangs that form concealed spaces through which fire and smoke and spread quickly.

A

Modern Mansard roof

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14
Q

In the absence of a thermal imaging camera, the first roof cut should____be to the ridge.

A

Parallel

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15
Q

Arched roof that uses an arch with a wooden or metal bottom chord.

A

Bowstring TRUSS roof

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16
Q

Arched roof that uses steel tie rods as the bottom cord for lateral support with turnbuckles to maintain proper tension

A

Bowstring ARCH roof

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17
Q

This arched roof uses massive arches of steel, concrete, or laminate wood buttressed into the ground at each end.

A

Trussless arched roof

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18
Q

Another type of trustless arch roof made up of an interlocking geometric framework on which plank sheeting is laid.

A

Lamella arch roof

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19
Q

The most common types of roof trusses are: (2types)

A

Parallel cord truss

Pitched roof truss

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20
Q

What do shingles come in a variety of sizes and are made from a number of different woods. _____ and ____ shingles are the most common because of their appearance and inherent durability.

A

Cedar

Redwood

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21
Q

Urethane/isocyanate foams are applied to roofs in two forms:

A

4 x 8’ sheets of foam insulation

Foamed-in-place application

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22
Q

Several rubber like liquid elastomers are applied to new roofs or over existing built of roofs after the gravel has been removed. These coatings are then sealed with a single layer of any of a variety of approved flexible, water resistant synthetic membranes also known as:

A

Single-ply roofs

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23
Q

Existing roof opening that is square or rectangle and penetrates the roof of a single-story building to provide additional natural light and/or ventilation.

A

Monitor

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24
Q

Some residential and small office buildings have a horizontal row of windows installed on a vertical wall between to offset roof sections.

A

Celestory Windows

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25
Q

This method of cutting the ventilation opening is sometimes referred to as “cutting with the rafters.”

A

Center- Rafter cut

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26
Q

This method of cutting the ventilation opening involves making the two longest cuts perpendicular to the rafters. Sometimes called “rolling the rafters”.

A

Dicing

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