Masonry(BB-CH8)

Question 1

To smooth cut a concrete masonry unit, use which of the following tools?

Answer 1

a brick chisel

Question 1

To finish a masonry joint, use which of the following tools?

Answer 1

jointer

Question 2

When placing masonry units, use a steel square for which of the following jobs?

Answer 2

laying out crowns

Question 3

(True or False) There are three main types of concrete masonry units.

Answer 3

false

Question 4

Load-bearing concrete block used in above and below grade exterior walls that may or may
not be exposed to moisture should be what grade?

Answer 4

grade n

Question 5

A standard concrete masonry unit made with pumice has what approximate weight?

Answer 5

25-35 pound

Question 6

The sides and the recessed ends of a concrete block are called the

Answer 6

shell

Question 7

(True or False) Spreading a 1 inch layer of mortar on both bed joints of walls and columns
is called face shell mortar bedding.

Answer 7

false

Question 8

For above grade exposed masonry where high compressive and lateral strength is not
required, use what type of mortar?

Answer 8

type N

Question 9

You should not temper mortar that has been mixed longer than what maximum time?

Answer 9

2 1.2 hour

Question 10

(True or False) You should only add calcium chloride should to mortar if it is specified in
the specifications.

Answer 10

true

Question 11

Using standard block, how many courses are required for a concrete block wall 10 feet
high?

Answer 11

15

Question 12

To lay 600 square feet of wall, you need approximately how many (a) 8 by 4 by 12 inch
concrete blocks and (b) cubic feet of mortar?

Answer 12

900; 24

Question 13

When bags of cement or lime are stacked on pallets, a setback should begin at what tier?

Answer 13

sixth

Question 14

A concrete block should be laid with what portion up?

Answer 14

The thicker end of the face shell

Question 15

What part(s) of a block wall is/are laid immediately after the first courses?

Answer 15

corners

Question 16

During the construction of a concrete block wall, you must butter all vertical edges of a
block at what point?

Answer 16

When the closure block is being installed

Question 17

Any excess mortar remaining on a concrete block after the joints are tooled should be
removed by what method?

Answer 17

rubbing with a burlap bag

Question 18

Intersecting bearing walls should be tied together by what means?

Answer 18

metal tie bars bent at right angles

Question 19

Lintel blocks should extend past the edge of an opening to what minimum distance?

Answer 19

6 in

Question 20

When reinforcing a block wall, you can ensure proper alignment of the rebar by performing
what action?

Answer 20

Placing a cleanout block at every stud in the first course

Question 21

(True or False) Weep holes in retaining walls are used to prevent water accumulation
behind the wall.

Answer 21

true

Question 22

For masonry structures that can withstand high temperatures without cracking or
decomposing, you should use what type of brick?

Answer 22

fire

Question 23

(True or False) In masonry, a soldier is a row lock brick laid with its bed parallel to the face
of the wall.

Answer 23

false

Question 24

In brick walls, structural bonding takes place by what means?

Answer 24

all of the above

Question 25

The pattern formed by the masonry units and mortar joints on the face of a wall is called what type of bond?

Answer 25

pattern

Question 26

Which of the following bonds is a variation of the running bond in which a header course appears at the fifth, sixth, or seventh course?

Answer 26

common/american bond

Question 27

Moisture is prevented from seeping under a horizontal masonry surface by the installation of

Answer 27

flashing

Question 28

Water that accumulates on a flashing should be allowed to drain to the outside by what means?

Answer 28

weep holes

Question 29

To ensure a good bond between mortar and brick, avoid which of the following joints?

Answer 29

slushed

Question 30

Spread bed joint mortar what maximum number of bricks ahead?

Answer 30

5

Question 31

To cut a brick to an exact line with a brick chisel or brick set, follow which of the following procedures?

Answer 31

all of the above

Question 32

(True or False) When laying out a brick arch, you can make the key brick line up by using an even number of bricks.

Answer 32

false