Chapter 14 Flashcards Preview

Building Construction > Chapter 14 > Flashcards

Flashcards in Chapter 14 Deck (9)
Loading flashcards...
1
Q

In 2012, ___ firefighters were killed by collapsing roofs and walls.

A

4 firefighters

2
Q

Fire and explosion damage precipitators of collapse; sustained ___ to ___ fire conditions, measured form the time of ignition, not arrival time.

A

Moderate to heavy

3
Q

Types of collapse - The destruction of the world trade center twin towers and building #7 are examples of ___.

A

Global collapse

4
Q

Tilt wall failure is an exempt of ___.

A

90° collapse

5
Q

The ___, two of the largest and tallest buildings ever constructed, were built by the Port Authority of New York and New Jersey, which were exempt from all local building and fire codes.

A

Twin Towers

6
Q

Each of the twin towers was ___ stories high, and each floor was ___ sq ft in area.

A

110 stories

40,000 sq ft

7
Q

When the planes struck the twin towers, approximately ___% of the jet fuel was ignited.

A

15%

8
Q

A ___ wall is the most stable, a ___wall is less stable, and a ___ wall is the least stable and the most dangerous.

A

Bearing wall

Non bearing wall

Freestanding wall

9
Q

Tie rods are unprotected steel and weaken or fail at temperature between ___.

A

800-1,000°F