Masonry(BB-CH8) Flashcards
To smooth cut a concrete masonry unit, use which of the following tools?
a brick chisel
To finish a masonry joint, use which of the following tools?
jointer
When placing masonry units, use a steel square for which of the following jobs?
laying out crowns
(True or False) There are three main types of concrete masonry units.
false
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?
grade n
A standard concrete masonry unit made with pumice has what approximate weight?
25-35 pound
The sides and the recessed ends of a concrete block are called the
shell
(True or False) Spreading a 1 inch layer of mortar on both bed joints of walls and columns
is called face shell mortar bedding.
false
For above grade exposed masonry where high compressive and lateral strength is not
required, use what type of mortar?
type N
You should not temper mortar that has been mixed longer than what maximum time?
2 1.2 hour
(True or False) You should only add calcium chloride should to mortar if it is specified in
the specifications.
true
Using standard block, how many courses are required for a concrete block wall 10 feet
high?
15
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?
900; 24
When bags of cement or lime are stacked on pallets, a setback should begin at what tier?
sixth
A concrete block should be laid with what portion up?
The thicker end of the face shell
What part(s) of a block wall is/are laid immediately after the first courses?
corners
During the construction of a concrete block wall, you must butter all vertical edges of a
block at what point?
When the closure block is being installed
Any excess mortar remaining on a concrete block after the joints are tooled should be
removed by what method?
rubbing with a burlap bag
Intersecting bearing walls should be tied together by what means?
metal tie bars bent at right angles
Lintel blocks should extend past the edge of an opening to what minimum distance?
6 in
When reinforcing a block wall, you can ensure proper alignment of the rebar by performing
what action?
Placing a cleanout block at every stud in the first course
(True or False) Weep holes in retaining walls are used to prevent water accumulation
behind the wall.
true
For masonry structures that can withstand high temperatures without cracking or
decomposing, you should use what type of brick?
fire
(True or False) In masonry, a soldier is a row lock brick laid with its bed parallel to the face
of the wall.
false
In brick walls, structural bonding takes place by what means?
all of the above
The pattern formed by the masonry units and mortar joints on the face of a wall is called
what type of bond?
pattern
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?
common/american bond
Moisture is prevented from seeping under a horizontal masonry surface by the installation
of
flashing
Water that accumulates on a flashing should be allowed to drain to the outside by what
means?
weep holes
To ensure a good bond between mortar and brick, avoid which of the following joints?
slushed
Spread bed joint mortar what maximum number of bricks ahead?
5
To cut a brick to an exact line with a brick chisel or brick set, follow which of the following
procedures?
all of the above
(True or False) When laying out a brick arch, you can make the key brick line up by using
an even number of bricks.
false
