ICC Masonry Special Inspector
Examination Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
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Question 1
The primary purpose of structural masonry special inspection is to:
A. Approve architectural finishes and aesthetic details
B. Verify compliance with approved construction documents and applicable codes
C. Design masonry walls and structural elements
D. Reduce overall project construction costs
Answer: B. Verify compliance with approved construction documents and
applicable codes. Special inspectors observe masonry construction to ensure it
conforms to approved plans, specifications, and applicable building code
provisions. Verification of compliance is the fundamental responsibility of the
special inspector, not design or cost reduction.
Question 2
Which document serves as the primary referenced standard for masonry design
and construction requirements?
A. AISC 360 Specification for Structural Steel Buildings
B. TMS 402/602 Building Code Requirements and Specification for Masonry
Structures
,C. National Electrical Code (NEC)
D. ASCE 24 Flood Resistant Design and Construction
Answer: B. TMS 402/602 Building Code Requirements and Specification for
Masonry Structures. TMS 402 provides design requirements while TMS 602
provides construction specifications for masonry. These are the primary masonry
standards referenced by the International Building Code.
Question 3
Masonry materials exhibit their greatest structural strength in:
A. Tension
B. Compression
C. Flexure
D. Shear
Answer: B. Compression. Masonry units and mortar are designed to resist
compressive forces effectively. Masonry has relatively low tensile and shear
strength, which is why reinforcement is typically required to resist these stresses.
Question 4
When a special inspector observes deviations from approved plans, the first action
should be to:
A. Immediately stop all construction work
B. Notify the contractor of the deviations
C. Contact the building official directly
D. Document the deviations and wait for resolution
Answer: B. Notify the contractor of the deviations. The special inspector must
bring discrepancies to the immediate attention of the contractor. If the
deviations remain uncorrected, the inspector must then notify the architect or
engineer of record and the building official.
,Question 5
Which mortar type is generally recommended for general above-grade masonry
applications where moderate strength is sufficient?
A. Type M
B. Type S
C. Type N
D. Type O
Answer: C. Type N. Type N mortar has a minimum compressive strength of 750
psi and is commonly used for general above-grade masonry where moderate
strength and good workability are required.
Question 6
Concrete masonry units (CMU) are most commonly manufactured from:
A. Plastic polymers
B. Portland cement, aggregates, and water
C. Clay and shale
D. Fiberglass composites
Answer: B. Portland cement, aggregates, and water. CMU are manufactured
using a mixture of Portland cement, aggregates (such as sand, gravel, or
crushed stone), and water, which is then formed and cured.
Question 7
The minimum thickness of a bed joint placed directly over a foundation or
structural slab should be:
A. 1/4 inch
B. 3/8 inch
, C. 1/2 inch
D. 3/4 inch
Answer: B. 3/8 inch. The minimum thickness of bed joints is 3/8 inch to ensure
proper mortar coverage and load transfer. Joints that are too thin may not
provide adequate bonding or accommodate minor irregularities in the substrate.
Question 8
What is the primary function of grout in reinforced masonry construction?
A. To provide a decorative finish
B. To fill cores and bond reinforcement to masonry units
C. To waterproof the wall system
D. To serve as thermal insulation
Answer: B. To fill cores and bond reinforcement to masonry units. Grout fills the
cores of hollow masonry units and the spaces around reinforcement, creating
composite structural action between the steel reinforcement and masonry.
Question 9
Fine grout differs from coarse grout primarily because:
A. It uses smaller maximum aggregate size
B. It contains no cementitious materials
C. It includes steel fibers exclusively
D. It has a faster setting time
Answer: A. It uses smaller maximum aggregate size. Fine grout has a maximum
aggregate size of 3/8 inch, while coarse grout may contain aggregate up to 3/4
inch. Fine grout is used in narrow cores and spaces where coarse aggregate
might not fit or properly consolidate.
Examination Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
Question 1
The primary purpose of structural masonry special inspection is to:
A. Approve architectural finishes and aesthetic details
B. Verify compliance with approved construction documents and applicable codes
C. Design masonry walls and structural elements
D. Reduce overall project construction costs
Answer: B. Verify compliance with approved construction documents and
applicable codes. Special inspectors observe masonry construction to ensure it
conforms to approved plans, specifications, and applicable building code
provisions. Verification of compliance is the fundamental responsibility of the
special inspector, not design or cost reduction.
Question 2
Which document serves as the primary referenced standard for masonry design
and construction requirements?
A. AISC 360 Specification for Structural Steel Buildings
B. TMS 402/602 Building Code Requirements and Specification for Masonry
Structures
,C. National Electrical Code (NEC)
D. ASCE 24 Flood Resistant Design and Construction
Answer: B. TMS 402/602 Building Code Requirements and Specification for
Masonry Structures. TMS 402 provides design requirements while TMS 602
provides construction specifications for masonry. These are the primary masonry
standards referenced by the International Building Code.
Question 3
Masonry materials exhibit their greatest structural strength in:
A. Tension
B. Compression
C. Flexure
D. Shear
Answer: B. Compression. Masonry units and mortar are designed to resist
compressive forces effectively. Masonry has relatively low tensile and shear
strength, which is why reinforcement is typically required to resist these stresses.
Question 4
When a special inspector observes deviations from approved plans, the first action
should be to:
A. Immediately stop all construction work
B. Notify the contractor of the deviations
C. Contact the building official directly
D. Document the deviations and wait for resolution
Answer: B. Notify the contractor of the deviations. The special inspector must
bring discrepancies to the immediate attention of the contractor. If the
deviations remain uncorrected, the inspector must then notify the architect or
engineer of record and the building official.
,Question 5
Which mortar type is generally recommended for general above-grade masonry
applications where moderate strength is sufficient?
A. Type M
B. Type S
C. Type N
D. Type O
Answer: C. Type N. Type N mortar has a minimum compressive strength of 750
psi and is commonly used for general above-grade masonry where moderate
strength and good workability are required.
Question 6
Concrete masonry units (CMU) are most commonly manufactured from:
A. Plastic polymers
B. Portland cement, aggregates, and water
C. Clay and shale
D. Fiberglass composites
Answer: B. Portland cement, aggregates, and water. CMU are manufactured
using a mixture of Portland cement, aggregates (such as sand, gravel, or
crushed stone), and water, which is then formed and cured.
Question 7
The minimum thickness of a bed joint placed directly over a foundation or
structural slab should be:
A. 1/4 inch
B. 3/8 inch
, C. 1/2 inch
D. 3/4 inch
Answer: B. 3/8 inch. The minimum thickness of bed joints is 3/8 inch to ensure
proper mortar coverage and load transfer. Joints that are too thin may not
provide adequate bonding or accommodate minor irregularities in the substrate.
Question 8
What is the primary function of grout in reinforced masonry construction?
A. To provide a decorative finish
B. To fill cores and bond reinforcement to masonry units
C. To waterproof the wall system
D. To serve as thermal insulation
Answer: B. To fill cores and bond reinforcement to masonry units. Grout fills the
cores of hollow masonry units and the spaces around reinforcement, creating
composite structural action between the steel reinforcement and masonry.
Question 9
Fine grout differs from coarse grout primarily because:
A. It uses smaller maximum aggregate size
B. It contains no cementitious materials
C. It includes steel fibers exclusively
D. It has a faster setting time
Answer: A. It uses smaller maximum aggregate size. Fine grout has a maximum
aggregate size of 3/8 inch, while coarse grout may contain aggregate up to 3/4
inch. Fine grout is used in narrow cores and spaces where coarse aggregate
might not fit or properly consolidate.
