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Fire: Fire Officer Study Guide > Building Construction 10 Non Combust > Flashcards

Building Construction 10 Non Combust Flashcards

1
Q

What is the max height for noncombustible construction

A

12 stories

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2
Q

What is the max height for fire resistive construction

A

Unlimited

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3
Q

What is the elasticity of steel

A

29 million pounds per square inch

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4
Q

Still has what tensile strength and what sheer strength

A

Hi tinsel

Hi-Shear

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5
Q

Steel has substantial elongation at what degree

A

1000 Fahrenheit

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6
Q

Above what temperature still members may fail

A

1300f

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7
Q

Cold drawn steel will fail what temp

A

800f

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8
Q

Steel construction , define angles

A

Two legs at right angles to each other

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9
Q

In regards to still construction define bars

A

Plates greater than 6 inches width can be square or round

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10
Q

Regarding steel construction define box columns

A

Hollow built from steel plates

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11
Q

Re: still construction define box girders

A

Hollow steel girders used to support other beams

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12
Q

Re: still construction castellated beams define

A

Wide flange beams cut half and zigzag pattern welded back together offsetting creating deep beams

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13
Q

In regards to still construction defined channels and I-beams

A

Channels steel structural components with a square U-shaped cross-section

I-beams top and bottom called flanges web connects flanges

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14
Q

Regarding steel construction define plates and purlins

A

Plates are flat pieces of steel

Purlins are beams set at right angles to trusses or rafters to provide support for lightweight roofing

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15
Q

Regarding steel construction rigid frames can clear spans of how long

A

100 feet

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16
Q

Steel construction the fire resistance to wind load the

A

More likely a progressive collapse

17
Q

What kind of construction Cement-asbestos Board used

A

Friable construction

18
Q

Friable construction is used where

A

Explosion is a possibility

19
Q

Why is friable construction used where explosion is possible

A

It will break away readily and relieve pressure

20
Q

Most common wall for unprotected steel frame buildings

A

Masonry

21
Q

At 1000° a steel member will expand how far every 100 feet

A

9.5 inches

22
Q

Steel above what temperature starts to lose strength rapidly

A

1000°

23
Q

It takes only what temperature for how many minutes for heat on the surface of steel to start a self sustaining roof fire

A

800° for five minutes

24
Q

What is the difference between noncombustible and fire resistive construction

A

The level of fire resistance assigned to the structure

Fire: Fire Officer Study Guide (61 decks)

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