Chapter 12

Question 1

the ___________ collapse is the pattern least likely to contain voids in which victims may be found

Answer 1

pancake

Question 2

this collapse pattern is the least stable and most prone to secondary collapse

Answer 2

cantilever collapse

Question 3

cubic volume calculation

Answer 3

L (length) X W (width) X H (height)

Question 4

system of diagonal braces footed on a horizontal surface to brace a vertical surface

Answer 4

raker shore

Question 5

any device that changes the direction or magnitude of a force

Answer 5

simple machines

Question 6

a simple machine that uses a flat slanted surface to raise or lower objects

Answer 6

inclined plane

Question 7

a maximum of ____ adjacent floor joists may be cut to make an access hole

Answer 7

2

Question 8

in load bearing walls, no more than ___ stud my be cut to permit passage

Answer 8

1

Question 9

wood weighs ____ pd. per cubic ft.

Answer 9

35

Question 10

Masonry weighs ____ pd. per cubic ft.

Answer 10

125

Question 11

Concrete weighs ______ pd. per cubic ft.

Answer 11

150

Question 12

Structural Steel weighs _______ pd. per cubic ft.

Answer 12

490

Question 13

The acronym LCES stands for

Answer 13

Lookout
Communications
Escape Routes
Safety Zones

Question 14

Two 2-post vertical shores used together form a _______

Answer 14

laced box shore

Question 15

Load is applied at one end of the lever and the force is applied at the other end, with a fulcrum in the middle

Answer 15

Class I Lever

Question 16

Fulcrum is at one end and the force is applied at the other end, with the load in the middle

Answer 16

class II lever

Question 17

Load is at one end and a fulcrum at the opposite end, with the force in the middle.

Answer 17

class II lever