Chpt 8

Question 1

Is one of the oldest an simplest building materials it’s use dates back thousands of years

Answer 1

Masonry

Question 2

Are also known as concrete masonry units

Answer 2

Concrete blocks

Question 3

Hollow concrete blocks are produced in a number of sizes and shapes, the most common is the nominal

Answer 3

8X8X16 inch block

Question 4

Consists of pieces of rock that have been removed from a quarry and cut to the size and shape desired

Answer 4

Stone masonry

Question 5

The mass of masonry wall is significant to fire personnel because nonreinforced masonry walls can _____ when a building becomes heavily involved in fire, thus posing a serious safety risk to emergency responders.

Answer 5

Topple

Question 6

The primary function of _____ is to bond the individual masonry units into a solid mass.

Answer 6

Mortar

Question 7

The _____, however, can be the weakest part of the wall

Answer 7

Mortar joints

Question 8

Most ____ is produced from a mixture of Portland cement, hydrated lime, sand, and water.

Answer 8

Mortar

Question 9

Masonry can be used to construct bearing walls that provide the basic structural-support for a building. These walls are known as

Answer 9

Bearing walls

Question 10

In contemporary practice, when a building is to be more than three or four stories tall, the use of a steel or concrete structural frame is usually more economical than erecting a

Answer 10

Nonreinforced masonry bearing wall

Question 11

When a masonry wall is constructed, the masonry units are laid side by side in a horizontal layer known as a

Answer 11

Course

Question 12

The horizontal courses of brick are laid on top of each other in a vertical layer known as a

Answer 12

Wythe

Question 13

A brick wythe is commonly used in combination with a concrete block wythe. Such a design is referred to as

Answer 13

Concrete block brick face CBBF

Question 14

When bricks are placed end to end, they create a

Answer 14

Stretcher course

Question 15

If bricks are placed vertically on end, a ____ is created

Answer 15

Soldier course

Question 16

One means of providing a horizontal bond between the wythe is to place a course of bricks across two wythes with the ends of the brick facing out. A course of bricks laid out in this manner is known as a

Answer 16

Header course

Question 17

An exterior brick wall often is constructed with a vertical cavity between the exterior wythe and the interior wythes. Such a wall is known as a

Answer 17

Cavity wall

Question 18

Masonry walls are reinforced to permit a taller building or to provide lateral stability against horizontal forces such as

Answer 18

Seismic shock

Question 19

A _____ is a beam over an opening in a masonry wall

Answer 19

Lintel

Question 20

are the most common methods of supporting loads over openings in masonry walls

Answer 20

Lintels

Question 21

A _____ is an extension of a masonry or steel wall that projects above the roof.

Answer 21

Parapet

Question 22

Are found on exterior masonry walls and fire walls of buildings with combustible roofs

Answer 22

Parapets

Question 23

Parapets project from _____ or more above the roof, usually without lateral support

Answer 23

1 to 3 feet

Question 24

This type of construction was so commonplace in the 19th and earlier part of the 20th century that it bears the designation______

Answer 24

Ordinary construction type 3

Question 25

In many applications such as residential and small commercial buildings wood joists or beams simply rest on the masonry wall in indentation known as a

Answer 25

Beam pocket

Question 26

The end of a wood joist or beam will be cut at a slight angle. This angle is known as a

Answer 26

Fire cut

Question 27

The purpose of a_____ is to allow the beam to fall away freely from a wall in the case of structural collapse

Answer 27

Fire cut

Question 28

In commercial buildings are frequently supported on pilasters

Answer 28

Wood roof trusses

Question 29

Buildings of ordinary construction, such as those with masonry exterior walls and wood joisted interior framing, are classified as ____ in building codes

Answer 29

Type 3 construction

Question 30

Any structural deterioration that may have occurred before a fire will contribute to _____ under fire conditions

Answer 30

Structural failure

Question 31

Despite the basic structural qualities of masonry construction, ____ of a masonry building is possible if it becomes heavily involved in fire

Answer 31

Total collapse

Question 32

Masonry walls usually collapse as a result of the collapse of the

Answer 32

Interior framing

Question 33

Collapsing interior floor or roof members can exert horizontal forces against a wall and push the wall

Answer 33

Outward

Question 34

A collapsing roof may dislodge only a parapet or an entire wall. Fire fighters should always assume that if a wall collapses it will fall out from the building a distance _____

Answer 34

At least equal to the height of the wall

Question 35

Because intersecting masonry walls tend to support each other, the corners of the building or other points of intersection, such as _____ will be the strongest points in a masonry structure

Answer 35

Stairwells or elevator shafts

Question 36

The exterior fire resistive walls of masonry construction do more than provide structural support; they also tend to reduce the communication of fire from

Answer 36

Structure to structure

Question 37

A masonry building is sometimes provided with a decorative false front or

Answer 37

Fascia

Question 38

A _____ forms a projection beyond the building wall that creates a concealed space through which a fire can communicate

Answer 38

Mansard style fascia

Question 39

Is a type of masonry construction in which the exterior bearing walls are constructed of brick and the interior structural framing is of solid or laminated wood

Answer 39

Mill construction heavy timber

Question 40

There are two characteristics that distinguish mill construction from type 3 masonry construction.

Answer 40

They are the dimensions of the wood structural members and the fact that combustible concealed spaces are not permitted

Question 41

The advantageous features of mill construction, however, can be significantly lessened when a mill building under goes a

Answer 41

Change of occupancy