Masonry Contractor License Exam With
Actual Questions & Verified Answers,
Plus Explained Rationales/Expert
Verified For Guaranteed 100% Pass
2026/Latest Update/Instant Download
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1. What is the primary ingredient in Portland cement?
A) Sand
B) Limestone
C) Clay
D) Gypsum
Limestone is the main raw material in Portland cement,
providing calcium oxide necessary for cement formation.
2. What type of bond pattern is commonly used in brick walls for
added strength?
A) Stack bond
B) Running bond
C) Flemish bond
D) Common bond
Flemish bond alternates headers and stretchers in each course,
providing both aesthetic appeal and structural integrity.
3. What is the recommended minimum mortar joint thickness for
standard brick construction?
, A) 1/4 inch
B) 3/8 inch
C) 1/2 inch
D) 5/8 inch
A 3/8-inch mortar joint ensures proper adhesion and uniform
load distribution without excessive mortar use.
4. Which test measures the compressive strength of concrete
masonry units (CMUs)?
A) Slump test
B) ASTM C140
C) Flexural test
D) Absorption test
ASTM C140 outlines procedures for sampling and testing CMUs
to determine their compressive strength.
5. Efflorescence on masonry walls is caused by:
A) Rusting of steel reinforcement
B) Water-soluble salts migrating to the surface
C) Improper curing
D) Excessive lime in mortar
Efflorescence occurs when salts in the masonry dissolve in water
and deposit on the surface as the water evaporates.
6. In masonry construction, a header is:
A) A brick laid lengthwise
B) A brick laid with its end facing the wall surface
C) A reinforced joint
D) The topmost brick in a wall
A header spans the thickness of the wall, connecting the wythes
together.
, 7. Which type of masonry mortar is best for above-grade exterior
walls exposed to weather?
A) M
B) N
C) O
D) S
Type S mortar offers high strength and good bonding, making it
suitable for exterior walls subject to weather.
8. Which is a primary function of a control joint in masonry?
A) Increase wall strength
B) Reduce water penetration
C) Control cracking due to expansion and contraction
D) Anchor the wall to the foundation
Control joints allow the masonry to expand and contract without
uncontrolled cracking.
9. What is the purpose of flashing in masonry walls?
A) To strengthen corners
B) To direct water out of the wall assembly
C) To support brick lintels
D) To increase thermal insulation
Flashing prevents water from penetrating the wall and directs it
away from the structure.
10. The typical compressive strength of standard concrete
masonry units (CMUs) is:
A) 500 psi
B) 1000 psi
C) 1900–2500 psi
D) 4000 psi
Most standard CMUs are designed to have compressive
Actual Questions & Verified Answers,
Plus Explained Rationales/Expert
Verified For Guaranteed 100% Pass
2026/Latest Update/Instant Download
1. What is the primary ingredient in Portland cement?
A) Sand
B) Limestone
C) Clay
D) Gypsum
Limestone is the main raw material in Portland cement,
providing calcium oxide necessary for cement formation.
2. What type of bond pattern is commonly used in brick walls for
added strength?
A) Stack bond
B) Running bond
C) Flemish bond
D) Common bond
Flemish bond alternates headers and stretchers in each course,
providing both aesthetic appeal and structural integrity.
3. What is the recommended minimum mortar joint thickness for
standard brick construction?
, A) 1/4 inch
B) 3/8 inch
C) 1/2 inch
D) 5/8 inch
A 3/8-inch mortar joint ensures proper adhesion and uniform
load distribution without excessive mortar use.
4. Which test measures the compressive strength of concrete
masonry units (CMUs)?
A) Slump test
B) ASTM C140
C) Flexural test
D) Absorption test
ASTM C140 outlines procedures for sampling and testing CMUs
to determine their compressive strength.
5. Efflorescence on masonry walls is caused by:
A) Rusting of steel reinforcement
B) Water-soluble salts migrating to the surface
C) Improper curing
D) Excessive lime in mortar
Efflorescence occurs when salts in the masonry dissolve in water
and deposit on the surface as the water evaporates.
6. In masonry construction, a header is:
A) A brick laid lengthwise
B) A brick laid with its end facing the wall surface
C) A reinforced joint
D) The topmost brick in a wall
A header spans the thickness of the wall, connecting the wythes
together.
, 7. Which type of masonry mortar is best for above-grade exterior
walls exposed to weather?
A) M
B) N
C) O
D) S
Type S mortar offers high strength and good bonding, making it
suitable for exterior walls subject to weather.
8. Which is a primary function of a control joint in masonry?
A) Increase wall strength
B) Reduce water penetration
C) Control cracking due to expansion and contraction
D) Anchor the wall to the foundation
Control joints allow the masonry to expand and contract without
uncontrolled cracking.
9. What is the purpose of flashing in masonry walls?
A) To strengthen corners
B) To direct water out of the wall assembly
C) To support brick lintels
D) To increase thermal insulation
Flashing prevents water from penetrating the wall and directs it
away from the structure.
10. The typical compressive strength of standard concrete
masonry units (CMUs) is:
A) 500 psi
B) 1000 psi
C) 1900–2500 psi
D) 4000 psi
Most standard CMUs are designed to have compressive
