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The open web design of truss joints: Select one:

a. restricts the spread of fire to the component's length.

b. permits rapid fire spread in multiple directions.

c. allows firefighters to operate longer on a roof during a fire.

d. provides greater stability than a heavy beam during a fire.

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Answers (2)
  1. 9 July, 00:01
    0
    The correct option is d)

    provides greater stability than a heavy beam during a fire.

    Explanation:

    Trusses are used to carry loads and are sometimes used to transfer structures. Truss are widely used to serve two functions;

    1. To carry the roof load

    11. To provide horizontal stability.

    Therefore option d) is the right option.

    provides greater stability than a heavy beam during a fire.
  2. 9 July, 00:10
    0
    b. permits rapid fire spread in multiple directions

    Explanation:

    This occurs because the open web design of truss joints creates a cockloft (truss loft) on each floor which permits fire spread in all directions and it is dangerous for fire fighters.
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