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WorksheetsModule Five Test
Total questions: 15
Worksheet time: 30mins
1. The approximate percentage of a masonry structure's surface represented by mortar is around _____.
a. 1 percent
b. 5 percent
c. 20 percent
d. 40 percent
Of the materials used in mortar, the one that is least uniform is _____.
a. lime
b. portland cement
c. water
d. sand
The packaged mortar that includes measured quantities of all needed materials except water is called _____.
a. preblended mortar
b. ready-mix mortar
c. masonry cement
d. mortar blend
Water that is used in mortar must be _____.
a. filtered
b. potable
c. between 40°F and 70°F
d. purified
ASTM specifies that Type S mortar must withstand a compression of at least _____.
a. 750 psi
b. 1,250 psi
c. 1,800 psi
d. 2,500 psi
How well mortar sticks to itself is referred to as _____.
a. cohesion
b. compressive strength
c. adhesion
d. tensile strength
Mortar and masonry units form a bond that is basically _____.
a. frictional
b. mechanical
c. chemical
d. positional
Mortar receives strength from the _____.
a. sand percentage
b. length of curing time
c. cement content
d. amount of lime
Adding too much water when mixing mortar is referred to as _____.
a. overwatering
b. flooding the mortar
c. overloading
d. drowning the mortar
To avoid the need for extensive tempering, a batch of mixed mortar should be used within_____.
a. one hour
b. two hours
c. three hours
d. four hours
Under low-temperature conditions, mortar should be mixed with cement designated as _____.
a. Type I
b. Type II
c. Type III
d. Type IV
To help prevent efflorescence, reduce the salt content of mortar materials by using _____.
a. slaked lime
b. more water
c. an air-entraining admixture
d. washed sand
In the trade, mixed mortar is often referred to as _____.
a. sludge
b. mud
c. cement
d. wet mix
The box shown in the figure above is used to measure _____.
a. lime
b. portland cement
c. water
d. sand
Hydrated lime is delivered to the job site in _____.
a. 5-gallon plastic pails
b. 1-cubic-foot bags
c. 55-gallon steel drums
d. 94-pound bags
