Chapter 8 Masonry And Ordinary Construction

Question 1

_______ is one of the oldest and simplest building materials

Answer 1

Masonry

Question 2

The primary benefit of masonry is their durability and

Answer 2

Inherent resistance to weather and insects

Question 3

Masonry has no significant ___________ in structural application but they are used for support ____________ loads

Answer 3

Tensile strength

Compressive loads

Question 4

________ masonry co soars of rock pieces that have been removed from a quarry and cut to size and shape desired, can be laid with or without mortar

Answer 4

Stone masonry

Question 5

The hardness of brick is dependent on what

Answer 5

Materials used in its composition

Question 6

Horizontal layers of brick plus mortar joints equals a height of

Answer 6

8 inches

Question 7

_______________ are the most common concrete masonry units CMUs

Answer 7

Hollow concrete blocks

Question 8

Fired clay tile is known as

Answer 8

Structural terra cotta

Question 9

What’s the primary function of mortar

Answer 9

Bond individual masonry units into a solid mass

Question 10

The mortar joints are often the _______ part of the wall

Answer 10

Weakest

Question 11

Mortar is available in ________ basic types with compression strengths ranging from

Answer 11

5

75psi to 2,500

Question 12

Most mortar is produced form a mixtures of _______ , hydrated line , sand , water

Answer 12

Portland cement

Question 13

Expansion of excess moisture within masonry materials resulting in tensile forces within the material and causing it to break apart

Answer 13

Spalling

Question 14

Ordinary construction is also known as

Answer 14

Masonry , wood joisted

Question 15

Buildings of ordinary construction is classified as _________ (exterior protected) in the building codes

Answer 15

Type III

Question 16

Depending on type of interior construction buildings with masonry exterior walls can also be what type of construction

Answer 16

Type I fire resistive

Type II protected noncombustible

Question 17

Masonry buildings supported by unprotected steel structural framing are classified as

Answer 17

Type II B construction

Question 18

The weight a wall can support ( masonry walls) will depend on what

Answer 18

Width of the wall and if it’s reinforced or nonreienforeced

Question 19

Most common materials used for masonry load bearing walls are

Answer 19

Brick
Concrete block
Combination of brick and block

Question 20

A single vertical column of masonry units in a wall , usually brick or concrete

Answer 20

Wythe

Question 21

Nonreinforced masonry walls are usually limited to a maximum height of

Answer 21

Six stories

Question 22

Horizontal layer of individual masonry units

Answer 22

Course

Question 23

Stretcher course

Answer 23

Bricks laid end to end

Question 24

Soldier course

Answer 24

Bricks placed vertically on end

Question 25

Header course

Answer 25

Bricks placed with the end facing out

Question 26

The existence of _________ in a wall is one way to identify the method of construction of a masonry wall

Answer 26

Header course

Question 27

__________ are used alternating with other types of courses to provide a strong horizontal bond between two wythes

Answer 27

Header course

Question 28

Load bearing masonry walls reinforced with steel constructed to a height of ten stories or more will have a wall thickness of

Answer 28

12 inches

Question 29

Masonry wall that is reinforced with steel can have a

Answer 29

Reduced thickness

Question 30

Masonry walls are reinforced to support the weight of a

Answer 30

Taller building or to provide stability against lateral forces

Question 31

The cavity between the wythes is filled with

Answer 31

Grout

Question 32

An exterior brick wall constructed with vertical cavity between the exterior wythe and interior wythe

Answer 32

Cavity wall

Question 33

What does the cavity wall prevent

Answer 33

Water seepage through the mortar joints to the interior of the building and increase thermal insulating value

Question 34

Provides lateral support without requiring extra thickness in the bearing wall

Answer 34

Buttresses

Question 35

Indicate the presence of a lateral beam

Answer 35

Structural pilasters

Question 36

I’m residential and small commercial building wood joists or beams simply rest on the masonry wall in an indentation

Answer 36

Beam pocket , several inches deep to provide an adequate bearing surface for the beam

Question 37

Rectangular masonry pillar that extends from the face of a wall to provide additional support to the wall

Answer 37

Pilaster

Question 38

Angled cut made at the end of a wood joist or wood beam that rest in a masonry wall

Answer 38

Fire cut

Question 39

Wood roof trusses in commercial buildings are frequently supported on

Answer 39

Pilasters

Question 40

Support for masonry over an opening

Answer 40

Lintel

Question 41

Bracket or ledge made of stone , wood brick or other building material projecting from the face of a wall or column used to support a beam cornice or arch

Answer 41

Corbel

Question 42

Most common method of supporting loads over openings in masonry walls

Answer 42

Lintels

Question 43

An extension of a masonry or steel wall that projects above the roof 1 ft or more

Answer 43

Parapet

Question 44

Collapse zones are typically at least _______ height of the building

Answer 44

1.5 times

Question 45

Corners of buildings or other points of intersection such as __________ or ___________ will be the strongest points in a masonry structure

Answer 45

Stairwells and elevator shafts

Question 46

When breaching a masonry wall, do it so in a triangle shape to maintain the

Answer 46

Corbeling shape

Question 47

A masonry wall that bulges or lean outward will tend to pull away from the interior framing how is it stabilized

Answer 47

Extend a series of steel tie rods inside the building through the masonry walls parallel to the joist

Question 48

Tie rods usually have ________ to adjust the tension in the rod

Answer 48

Turnbuckle

Question 49

Potential problem of tie rods

Answer 49

Steel became heated under fire conditions cause walls to weaken