100+ Free ICC Masonry Inspector S2 Practice Questions

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Question 1

Score: 0/0

Under IBC Section 1705.4, which condition requires continuous special inspection of masonry construction?

All masonry construction regardless of height or loading

Masonry when used in structures assigned to Seismic Design Category C, D, E, or F

Only masonry columns and pilasters exceeding 10 feet in height

Masonry veneer exceeding two stories in height

to track

2026 Statistics

Key Facts: ICC Masonry Inspector S2 Exam

Exam Questions

ICC

75%

Passing Score

ICC

2 hrs

Exam Duration

Pearson VUE

$196-292

Exam Fee

ICC member/non-member

3 years

Certification Validity

ICC

8-11 in

Required Grout Slump

TMS 602

The ICC S2 exam has 60 multiple-choice questions in 2 hours with a 75% passing score. It is an open-book exam referenced to IBC Chapter 17 and TMS 402/602. Key domains: Special Inspection Procedures (IBC 1705.4), TMS 402/602 Masonry Construction Requirements, Grouting (lift heights, cleanouts, consolidation), Reinforcement Placement and Splices, Material Testing (ASTM C1019, C1314), and Weather Procedures.

Sample ICC Masonry Inspector S2 Practice Questions

Try these sample questions to test your ICC Masonry Inspector S2 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under IBC Section 1705.4, which condition requires continuous special inspection of masonry construction?

A.All masonry construction regardless of height or loading

B.Masonry when used in structures assigned to Seismic Design Category C, D, E, or F

C.Only masonry columns and pilasters exceeding 10 feet in height

D.Masonry veneer exceeding two stories in height

Explanation: IBC Section 1705.4 requires continuous special inspection for masonry in structures assigned to Seismic Design Category C through F. Periodic inspection may be sufficient for lower seismic risk categories. Continuous inspection means the special inspector is on-site for all masonry work without exception.

2TMS 402/602 is the primary referenced standard for masonry structures. What does TMS stand for?

A.Technical Masonry Standard

B.The Masonry Society

C.Total Masonry Specification

D.Trades and Masonry Standards

Explanation: TMS stands for The Masonry Society. TMS 402 is the Building Code Requirements for Masonry Structures, and TMS 602 is the Specification for Masonry Structures. Together they are referenced by the 2024 IBC as the standard for the design and construction of masonry buildings.

3Per ASTM C90, what are the minimum face shell thickness requirements for a standard 8-inch (200 mm) hollow concrete masonry unit?

A.1 inch (25 mm)

B.1-1/4 inches (32 mm)

C.1-1/2 inches (38 mm)

D.2 inches (51 mm)

Explanation: ASTM C90 specifies that 8-inch CMU must have a minimum face shell thickness of 1-1/4 inches (32 mm). This requirement ensures structural integrity and provides adequate cover for embedded reinforcement. Face shell thickness is a key inspection verification point at delivery and during construction.

4ASTM C270 classifies mortar for masonry into several types. Which mortar type is most commonly used for general above-grade exterior masonry?

A.Type K

B.Type N

C.Type S

D.Type M

Explanation: Type N mortar is a medium-strength mortar commonly used for general above-grade exterior masonry where moderate strength is required. It provides good workability and weather resistance. Type S is used for below-grade or lateral load conditions; Type M is used for below-grade or high-compressive-stress applications.

5When performing a mortar flow test per ASTM C1437, what is the specified flow range for field-mixed mortar?

A.100 to 115

B.130 to 150

C.155 to 175

D.180 to 200

Explanation: ASTM C1437 specifies the flow cone test for mortar consistency. For field-mixed masonry mortar the acceptable flow range is 130 to 150. Flow is a measure of mortar consistency and workability; values outside this range indicate the mix proportions or water content need adjustment.

6According to TMS 602, what is the maximum height of a single grout lift when using low-lift grouting procedures?

A.4 feet (1.2 m)

B.5 feet (1.5 m)

C.6 feet (1.8 m)

D.8 feet (2.4 m)

Explanation: TMS 602 Article 3.5 D specifies that grout shall be placed in lifts not exceeding 5 feet (1.5 m). This applies to low-lift grouting; exceeding 5 feet triggers high-lift grouting procedures, which require cleanout openings and additional inspection requirements. The inspector verifies that each lift does not exceed this height before the next lift is placed.

7The special inspector verifies grout compressive strength using which ASTM standard for grout prism specimens?

A.ASTM C109

B.ASTM C780

C.ASTM C1019

D.ASTM C1314

Explanation: ASTM C1019 is the Standard Method for Sampling and Testing Grout. It covers the construction of grout prism specimens, curing requirements, and compressive strength testing. These prisms are used by the special inspector to verify that grout meets specified f'c. ASTM C1314 is used for masonry unit prisms, not grout.

8Per ASTM C1314, masonry prism specimens are used to verify which structural property?

A.Mortar bond strength

B.Masonry assembly compressive strength (f'm)

C.Grout flowability

D.Unit water absorption

Explanation: ASTM C1314 covers the compressive strength of masonry prisms—assemblages of masonry units, mortar, and in some cases grout—to determine the specified compressive strength of masonry, f'm. Prism testing is a direct verification method alternative to using unit-strength tables in TMS 402. The inspector witnesses construction of prisms and tracks chain of custody.

9When inspecting cleanout openings required for high-lift grouting, what does the special inspector verify before grout is placed?

A.That all rebar splices are welded

B.That the cells are clear of mortar droppings, debris, and standing water

C.That the masonry units are pre-wetted

D.That a weep screed has been installed at the base

Explanation: Before high-lift grouting, TMS 602 Article 3.5 requires the inspector to verify cleanout openings and confirm the cores/cells are free of mortar droppings, debris, and standing water. Cleanouts are required at the bottom of each grouted cell when grout pour height exceeds 5 feet, allowing inspection and cleaning of the cell prior to closure and grouting.

10ASTM A615 specifies requirements for which masonry reinforcement material?

A.Galvanized ladder-type joint reinforcement

B.Deformed steel reinforcing bars

C.Fiber-reinforced polymer bars

D.Prestressing tendons

Explanation: ASTM A615 covers deformed and plain carbon-steel bars for concrete reinforcement, including those used in reinforced masonry. The inspector verifies bar grade (typically Grade 60), diameter, and heat number markings against the mill certificate. ASTM A615 bars are the most common vertical and horizontal reinforcement in reinforced CMU walls.

About the ICC Masonry Inspector S2 Exam

The ICC Reinforced Masonry Special Inspector (S2) certification demonstrates competency in the special inspection of reinforced masonry construction. The exam covers IBC Chapter 17 special inspection requirements, TMS 402/602 (Building Code Requirements and Specification for Masonry Structures), ASTM material standards for CMU, brick, mortar, grout, and reinforcing steel, grouting procedures, reinforcement placement, cold/hot weather requirements, and inspector documentation.

Questions

60 scored questions

Time Limit

2 hours

Passing Score

75% correct

Exam Fee

$196 (members) / $292 (non-members) (ICC / Pearson VUE)

ICC Masonry Inspector S2 Exam Content Outline

25%

Special Inspection Requirements (IBC Chapter 17)

IBC Section 1705.4 continuous vs. periodic inspection, statement of special inspections, inspector documentation, non-conformance reporting, and final report requirements

25%

TMS 402/602 Construction Requirements

Mortar joint thickness, bedding types, bar placement tolerances, minimum cover, bond beams, masonry column reinforcement, and construction tolerances

20%

Grouting Procedures

Low-lift and high-lift grouting, grout lift heights, cleanout openings, grout slump (8-11 inches), consolidation by vibration or rodding, and reconsolidation

15%

Masonry Materials and Testing

ASTM C90 CMU, C216 brick, C270 mortar, C476 grout, A615 rebar; mortar flow and air content tests; ASTM C1019 grout prisms; ASTM C1314 masonry prisms

10%

Weather Construction Procedures

TMS 602 Article 1.8C cold weather requirements (40°F threshold), TMS 602 Article 1.8D hot weather requirements (90°F threshold), mortar retempering, and protection of completed work

Codes and Standards Overview

TMS 402/602 structure, f'm determination methods (prism testing vs. unit strength method), seismic design categories and masonry system types

How to Pass the ICC Masonry Inspector S2 Exam

What You Need to Know

Passing score: 75% correct
Exam length: 60 questions
Time limit: 2 hours
Exam fee: $196 (members) / $292 (non-members)

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

ICC Masonry Inspector S2 Study Tips from Top Performers

1Master IBC Table 1705.4 — know which tasks require continuous vs. periodic inspection and at what Seismic Design Category

2Know TMS 602 grout requirements by memory: 8-11 inch slump, 5-foot max lift height, 18-inch max vibrator spacing, reconsolidation required

3Tab your TMS 402/602 for grout space tables, mortar joint tolerances, lap splice provisions, and weather articles

4Understand the inspector's role vs. the engineer of record — inspector observes and reports; EOR makes structural decisions

5Practice grout prism and mortar flow test procedures cold — ASTM C1019 and C1437 are frequently tested

Frequently Asked Questions

What is the ICC S2 Reinforced Masonry Special Inspector exam?

The ICC S2 is a certification exam for special inspectors who oversee reinforced masonry construction. It is administered by the International Code Council through Pearson VUE and tests knowledge of IBC Chapter 17, TMS 402/602, and referenced ASTM standards for masonry materials and testing.

Is the ICC S2 exam open-book?

Yes, the ICC S2 exam is open-book. You can reference IBC, TMS 402/602, and related I-Codes during the test. Knowing where to find key provisions quickly is critical since the exam is timed.

What is the passing score for the ICC S2 exam?

You need 75% correct to pass the ICC S2 exam. The exam has approximately 60 questions. ICC does not publish the exact number of scored versus pretest questions.

What masonry ASTM standards are tested on the ICC S2 exam?

Key ASTM standards include: C90 (hollow CMU), C216 (facing brick), C270 (mortar), C476 (grout), A615 (deformed rebar), C1019 (grout prism testing), C1314 (masonry prism testing), C185 (mortar air content), and C1437 (mortar flow test).

What is the difference between continuous and periodic special inspection for masonry?

Continuous inspection requires the inspector to be on-site and observing all masonry work throughout the workday. Periodic inspection allows the inspector to be present at defined intervals and checkpoints. The required level depends on the Seismic Design Category — SDC C through F typically requires continuous inspection for grouting and reinforcement placement.

How often must I renew my ICC S2 certification?

ICC certifications must be renewed every 3 years. Renewal requires completing continuing education units (CEUs) through ICC-approved programs.