CHAPTER 2

Question 0

When breaching a masonry wall the members should open a

Answer 0

Triangular hole

Question 1

Steel is ______ equally strong in compression and tension

Answer 1

Almost

Question 2

When breaching a masonry wall loads coming down a wall to an opening

Answer 2

Do not follow a vertical path. They split and pass on both sides of the opening

Question 3

When breaching a masonry wall if the wall elements fall part easily during breaching

Answer 3

Stop the breaching operation

Question 4

If while breaching a masonry wall you find evidence that the wall has been strengthened at that area (evidence of a wall column)

Answer 4

Stop and start somewhere else. You are likely to be under a concentrated load

Question 5

An arch is under ________ for its entire length

Answer 5

Compression

Question 6

The thrust of an arch is

Answer 6

Outward

Question 7

The removal of any part of an arch can cause _______ of the entire arch

Answer 7

Collapse

Question 8

Because its thrust is downward, a bowstring truss is a

Answer 8

Beam and not an arch

Question 9

A 20 foot column can carry ______ % of the load of a 10 foot column (both columns of the same cross section)

Answer 9

25%

Question 10

If a 20 foot column is braced at midpoint (10 feet) and the bracing suddenly fails at a fire, that columns load carrying capacity decreases to _____ of what it was able to support with the bracing

Answer 10

1/4

Question 11

A static load is a load applied

Answer 11

Slowly and remains constant. A heavy safe is a live static load

Question 12

A concentrated load is a heavy load located at

Answer 12

One point of a building. A steel beam resting on a masonry wall

Question 13

An impact load is a load delivered

Answer 13

In a short period of time. A member jumps on a roof

Question 14

The hierarchy of building elements

Answer 14

Bearing walls
Columns
Girders 
Beams (floor and roof)
Decks

Question 15

The 7 primary structural members

Answer 15

Bearing walls
Columns
Girders 
Headers
Hip rafters 
Ridgepoles
Floor or roof deck
Non bearing wall