Other Skilled Trades Masonry 2

Question 1

What is the minimum required overlap (lap) for brick courses at corners and in running bond pattern?

Accepted Answer

1/3 of the brick length

Answer

1/4 of the brick length

Answer

1/2 of the brick length

Answer

2/3 of the brick length

Question 2

What material is used to create a control joint in a concrete block (CMU) wall to control cracking?

Accepted Answer

Rubber or foam backer rod with sealant

Answer

Metal Z-bar

Answer

Mortar with added fiber

Answer

Galvanized mesh

Question 3

What is the primary purpose of cavity wall construction in masonry?

Accepted Answer

To provide a drainage plane and thermal break between wythes

Answer

To reduce brick costs

Answer

To increase the speed of construction

Answer

To allow for electrical conduit installation

Question 4

Which ASTM standard governs the specification for mortar for unit masonry?

Accepted Answer

ASTM C270

Answer

ASTM C90

Answer

ASTM C62

Answer

ASTM C216

Question 5

What is 'tuckpointing' in masonry repair?

Accepted Answer

Removing deteriorated mortar joints and filling with new mortar

Answer

Adding new bricks to an existing wall

Answer

Sealing brick surfaces with waterproofing

Answer

Installing wall ties in existing masonry

Question 6

What type of lintel is most commonly used over openings in brick veneer walls in US construction?

Accepted Answer

Steel angle lintel

Answer

Wooden lintel

Answer

Stone lintel

Answer

Precast concrete lintel