Name: 
 

Chapter 8



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 


A ____ mortar is a general all purpose mortar with high flexural bond strength.
a.
Type M
c.
Type S
b.
Type N
d.
Type O
 

 2. 

The first step in manually mixing mortar is to ____.
a.
mix the cement and water together
b.
place the cement in the mortar box
c.
place the sand in the mortar box
d.
flush the mortar box with cool water
 

 3. 

A(n) ____ results in mortars that are easier to spread out and that adhere to the trowel and masonry units better.
a.
retarder
c.
air-entraining agent
b.
accelerator
d.
plasticizer
 

 4. 

The first step is mixing mortar with a powered mixer is to ____.
a.
place half of the sand in the mixing drum
b.
put water in the mixing drum
c.
place the cement in the mixing drum
d.
place cement and water in the mixing drum together
 

 5. 

Autogeneous healing refers to the capability of lime-based mortars to ____.
a.
increase the masonry cement’s rate of hydration
b.
fill small voids that may occur in joints by chemical reaction
c.
resist separation of mortar and ease spreadability
d.
to withstand stretching
 

 6. 

Mortar for exterior and interior walls should be composed of one part cementitious material and ____ sand.
a.
between 2 1/4 and 3 parts
c.
between 3 to 3 3/4 parts
b.
between 2 1/2 and 3 1/2 parts
d.
between 3 1/4 and 4 parts
 



 
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