General Contractors License - Masonry

Front 1

What tool is used to finish mortar joints

Back 1

Sled Runner joint

Front 2

What blades are used to cut masonry

Back 2

Diamond or Carbide

Front 3

What is the unit for modular bricks

Back 3

4"

Front 4

Non modular brick sizes

Back 4

vary from region to region

Front 5

All masonry units that are ____ % are considered solid

Back 5

75%

Front 6

Brick durability is affected by (4) things

Back 6

- Heat

- Wetting

- Drying

- Soluble Salts

Front 7

Efflorescence is caused by

Back 7

Soluble salts being carried to the surface by evaporation

Front 8

What brick bond is the weakest

Back 8

Stack

Front 9

What type of mortar joints are effective in resisting rain penetration

Back 9

Concave or Tooled

Front 10

What is the most popular mortar joint

Back 10

Concave

Front 11

What tile has a high degree of mechanical perfection

Back 11

(FTX) Unglazed Facing

Front 12

How much does a CMU weigh

Back 12

40 lbs

Front 13

Actual Size of a CMU

Back 13

7 5/8" x 7 5/8" x 15 5/8"

Front 14

Which block is stronger a 2 core block or 3 core block

Back 14

2 core

Front 15

What block is used when reinforcing bars must align in the core holes

Back 15

2 core

Front 16

Masonry glass block joints are typically ___" on all sides

Back 16

1/4"

Front 17

What type of stone works best in sills

Back 17

Limestone

Front 18

Basic ingredients of Mortar

Back 18

- Portland Cement

- Hydrated Lime

- Sand

Front 19

Hydrated Lime is ______ that has been slaked before packaging

Back 19

quicklime

Front 20

_______ means that quicklime has been formed into a putty by combining it with water

Back 20

Slacked

Front 21

How can you retemper mortar

Back 21

adding water

Front 22

Mortar should be discarded ______ after mixing

Back 22

2.5 hours

Front 23

The comprehensive strength of mortar increases as _______

Back 23

cement content increases

Front 24

What is the most significant property of hardened mortar

Back 24

Bond Strength (also most difficult to predict)

Front 25

What type of mortar is used for unreinforced masonry below grade

Back 25

Type M

Front 26

What type of mortar is recommended for unreinforced masonry where max Flexural strength is required

Back 26

Sype S

Front 27

When wind speeds exceed 80 mph, Type ____ Mortar should be used

Back 27

S

Front 28

Three types of Ties

Back 28

- Corrugated

- Rectangular

- Z

Front 29

All reinforcing rods or bars used in masonry walls must have ____ " of mortar coverage

Back 29

5/8"

Front 30

A strap anchor is used to

Back 30

connect a partition wall to a bearing wall

Front 31

What tool can be used to cut brick when the cut edge will be hidden by mortar

Back 31

Brick Hammer

Front 32

A corner pole is also known as a

Back 32

story pole

Front 33

A corner pole is used to

Back 33

insure the height of each course of block or brick

Front 34

Wall ties in the mortar should be placed

Back 34

5/8" from either edge of the masonry unit

Front 35

To clean brick use a diluted solution of

Back 35

Hydrochloric Acid

Front 36

When sandblasting masonry the pressure should be

Back 36

60-100 psf

Front 37

The most common air space for a cavity wall is

Back 37

2"

Front 38

What ties are typically used in residential veneer construction

Back 38

Corrugated

Front 39

Which direction should the wide flange face in a block wall

Back 39

At the top

Front 40

What tool is used to make sure that the mason's line does not sag

Back 40

Trig

Front 41

How far should a mason's line be held away from the block or brick

Back 41

1/16"

Front 42

A full mortar bed is furrowed with a

Back 42

Trowel

Front 43

A _____ is used to ensure a good bond between the footing and the bed course

Back 43

A full mortar bed

Front 44

What diameter bar is used for a 3/8" concave mortar joint

Back 44

5/8"

Front 45

Control joints should be ____________ after the mortar has been raked out to a depth of ___"

Back 45

sealed with a caulking compound, 3/4"

Front 46

How far should you parge the wall from the footing above the finished grade

Back 46

6"

Front 47

What are walls that are self-supported called

Back 47

Curtain Walls

Front 48

An expansion joint on the outside wythe must be spaced no further than

Back 48

50' apart

Front 49

Jack Arch is relatively weak and should be supported by steel if the opening is over

Back 49

2' wide

Front 50

Sheets of welded wire reinforcing are overlapped at least ______

Back 50

One full stay plus 2"

Front 51

Concrete wearing surfaces (Terrazzon) are generally how thick

Back 51

2" thick

Front 52

Tuckpointing definition

Back 52

Filling in cut out or defective mortar joints in masonry with fresh mortar

Front 53

Nominal dimension of a modular brick is equal to

Back 53

the manufactured dimensions plus the thickness of the mortar joint

Front 54

Main ingredient in mortar is

Back 54

Portland cement

Front 55

Standard nonmodular brick requires ___ cu. ft. of mortar per 100 sq. ft. of wall

Back 55

5.8

Front 56

CMU requires ____ cu. ft. of mortar per 100 sq. ft. of wall

Back 56

6

Front 57

Tuckpointing should be done with what type of mortar

Back 57

Type N prehydrated

Front 58

Minimum comprehensive strength of grout should be

Back 58

2000 psi

Front 59

3/8 Rebar is known as

Back 59

#3, (4/8 known as #4)

Front 60

Strap anchors dimensions are

Back 60

1-4" x 1 1/4" x 30"

Front 61

When the air gap (cavity) is less than 2", the wall is considered

Back 61

Veneered

Front 62

One masonry unit of an arch is called a

Back 62

Voussoir

Front 63

Rise of a Segmented arch should be

Back 63

1/12, 1/10, 1/8, 1/6 of the span

Front 64

Minimum rise of ___" per ___ ' in an arch

Back 64

1", 1'

Front 65

Rebar should be lapped ____ bar diameters but not less than ____"

Back 65

24, 12"