Other Skilled Trades Masonry

Question 1

What is the standard mortar joint thickness used in brick masonry construction?

Accepted Answer

3/8 inch

Answer

3/8-inch mortar joints are the standard thickness for brick masonry as specified in ASTM standards and most US building codes.

Question 2

Which mortar type is the strongest and most commonly used for load-bearing masonry walls?

Accepted Answer

Type M

Answer

Type M mortar has the highest compressive strength (2,500 psi minimum) and is used for below-grade, load-bearing, and high-stress masonry applications.

Question 3

What is the purpose of a weep hole in a brick veneer wall?

Accepted Answer

To drain moisture from behind the brick veneer

Answer

Weep holes are openings left at the bottom of brick veneer walls to allow water that penetrates behind the veneer to drain out, preventing moisture buildup.

Question 4

What is a 'header' course in brick masonry?

Accepted Answer

A course of bricks laid perpendicular to the wall face to tie wythes together

Answer

A header course consists of bricks laid crosswise (perpendicular to the wall face) so they span across multiple wythes, mechanically tying the wall together.

Question 5

What tool is used by masons to check that courses of brick are rising at a consistent, level height?

Accepted Answer

Story pole (or gauge rod)

Answer

A story pole (gauge rod) is a marked rod that shows the height of each course of brick, allowing the mason to quickly check that courses are rising correctly.

Other Skilled Trades Practice Test

Other Skilled Trades Practice Test

Other Skilled Trades Masonry