Arizona R-36 Plastering Contractor
Exam 200 Practice Questions with
Verified Answers & Detailed Rationales
ARIZONA REGISTRAR OF CONTRACTORS (ROC)
R-36 Plastering Contractor License Examination
Complete Practice Test Bank | 2026/2027 Edition
Exam Provider: PSI Services (Arizona ROC)
License Classification: R-36 (Residential) / CR-36 (Residential & Commercial) Plastering
Exam Format: Closed Book, Multiple Choice
Time Limit: Approximately 2–3 hours (varies by version)
Passing Score: 70% Minimum
Primary References: ASTM C926, OSHA 29 CFR 1926, Arizona ROC Statutes & Rules,
Portland Cement Plaster/Stucco Manuals
TABLE OF CONTENTS
1. Exam Overview & Key Information ………………………………………………………… 3
2. Section 1: Licensing, Business & Legal (Questions 1-25) …………………………… 4
3. Section 2: Surface Preparation & Substrates (Questions 26-55) …………………… 7
4. Section 3: Lath Installation (Questions 56-80) …………………………………… 10
5. Section 4: Plaster & Stucco Materials (Questions 81-110) ………………………… 12
6. Section 5: Application Techniques (Questions 111-145) …………………………… 14
7. Section 6: Curing, Finishing & Troubleshooting (Questions 146-170) …………… 17
,8. Section 7: Safety & OSHA Regulations (Questions 171-190) ………………………… 19
9. Section 8: Comprehensive Review (Questions 191-200) ……………………………… 21
10. Complete Answer Key ……………………………………………………………………… 22
1. EXAM OVERVIEW & KEY INFORMATION
What Is the R-36 (CR-36) Plastering Contractor License?
The Arizona R-36 Plastering Contractor License is issued by the Arizona Registrar of
Contractors (ROC). It authorizes the holder to apply gypsum plaster, cement plaster, stucco,
synthetic finishes, and acoustical plaster to interior and exterior surfaces of residential structures
.
License Classifications
| Classification | Scope |
|-|-|
| R-36 | Residential Plastering |
| CR-36 | Residential & Commercial Plastering |
Key Topics Covered
| Domain | Key Topics |
|--||
| Licensing & Business | ROC rules, lien laws, contract law, insurance, bonding |
| Surface Preparation | Substrate cleaning, moisture testing, bonding agents, fogging techniques
|
| Lath Installation | Metal lath, gypsum lath, fastener spacing, weep screeds |
| Plaster Materials | Portland cement, lime, gypsum, aggregates, admixtures, ASTM standards |
| Application Techniques | Scratch coat, brown coat, finish coat, three-coat systems, machine
spraying |
| Curing & Finishing | Moist curing, fogging, tooling, texture finishes, troubleshooting defects |
| Safety | Fall protection, scaffolding, PPE, silica dust, OSHA 29 CFR 1926 |
Key Requirements for Licensure
- Minimum 4 years of verifiable plastering experience
- Pass the Trade Exam (R-36 / CR-36) and the Statutes and Rules Exam (SRE)
- Secure a surety bond ($15,000 minimum)
,- Submit a criminal background check
- Carry workers' compensation insurance
- The qualifying party must receive a grade of at least 70% on each examination
Key Reference Standards
| Standard | Description |
|-|-|
| ASTM C926 | Standard Specification for Application of Portland Cement-Based Plaster |
| ASTM C1063 | Standard Specification for Installation of Lathing and Furring to Receive
Portland Cement-Based Plaster |
| OSHA 29 CFR 1926 | Construction safety standards |
| ASTM C150 | Standard Specification for Portland Cement |
| ASTM C847 | Standard Specification for Metal Lath |
2. SECTION 1: LICENSING, BUSINESS & LEGAL (Questions 1-25)
Q1. What is the primary purpose of the Arizona Registrar of Contractors (ROC)?
A) To regulate environmental standards for construction
B) To oversee licensing, discipline, and consumer protection for contractors
C) To set wages for construction laborers
D) To provide construction permits only
Answer: B
Rationale: The ROC's main role is to license contractors, enforce laws, discipline violators, and
protect consumers in the construction industry .
Q2. Which license classification would a plastering contractor most likely need under AZ ROC
regulations?
A) General Contractor (B)
B) Residential Specialty Contractor (R-36)
C) Commercial Contractor (A)
D) Dual License (A & B)
Answer: B
, Rationale: The R-36 license specifically authorizes residential plastering work, including
applying plaster coatings to interior and exterior surfaces of residential structures .
Q3. Which classification of plastering work is authorized under the R-36 license in Arizona?
A) Installing electrical wiring in walls
B) Applying plaster coatings to interior and exterior surfaces
C) Installing HVAC systems
D) Laying concrete slabs
Answer: B
Rationale: The R-36 license permits plastering activities, including applying plaster coatings to
various surfaces, but excludes electrical, HVAC, or concrete work .
Q4. According to Arizona law, what is the minimum amount of practical trade experience
required to qualify for a contractor's license?
A) Two years
B) Three years
C) Four years
D) Five years
Answer: C
Rationale: Arizona law requires a minimum of four years of practical or management trade
experience, at least two of which must have been within the last ten years.
Q5. What is the minimum passing score for each required section of the Arizona contractor
licensing examination?
A) 60%
B) 70%
C) 75%
D) 80%
Answer: B
Exam 200 Practice Questions with
Verified Answers & Detailed Rationales
ARIZONA REGISTRAR OF CONTRACTORS (ROC)
R-36 Plastering Contractor License Examination
Complete Practice Test Bank | 2026/2027 Edition
Exam Provider: PSI Services (Arizona ROC)
License Classification: R-36 (Residential) / CR-36 (Residential & Commercial) Plastering
Exam Format: Closed Book, Multiple Choice
Time Limit: Approximately 2–3 hours (varies by version)
Passing Score: 70% Minimum
Primary References: ASTM C926, OSHA 29 CFR 1926, Arizona ROC Statutes & Rules,
Portland Cement Plaster/Stucco Manuals
TABLE OF CONTENTS
1. Exam Overview & Key Information ………………………………………………………… 3
2. Section 1: Licensing, Business & Legal (Questions 1-25) …………………………… 4
3. Section 2: Surface Preparation & Substrates (Questions 26-55) …………………… 7
4. Section 3: Lath Installation (Questions 56-80) …………………………………… 10
5. Section 4: Plaster & Stucco Materials (Questions 81-110) ………………………… 12
6. Section 5: Application Techniques (Questions 111-145) …………………………… 14
7. Section 6: Curing, Finishing & Troubleshooting (Questions 146-170) …………… 17
,8. Section 7: Safety & OSHA Regulations (Questions 171-190) ………………………… 19
9. Section 8: Comprehensive Review (Questions 191-200) ……………………………… 21
10. Complete Answer Key ……………………………………………………………………… 22
1. EXAM OVERVIEW & KEY INFORMATION
What Is the R-36 (CR-36) Plastering Contractor License?
The Arizona R-36 Plastering Contractor License is issued by the Arizona Registrar of
Contractors (ROC). It authorizes the holder to apply gypsum plaster, cement plaster, stucco,
synthetic finishes, and acoustical plaster to interior and exterior surfaces of residential structures
.
License Classifications
| Classification | Scope |
|-|-|
| R-36 | Residential Plastering |
| CR-36 | Residential & Commercial Plastering |
Key Topics Covered
| Domain | Key Topics |
|--||
| Licensing & Business | ROC rules, lien laws, contract law, insurance, bonding |
| Surface Preparation | Substrate cleaning, moisture testing, bonding agents, fogging techniques
|
| Lath Installation | Metal lath, gypsum lath, fastener spacing, weep screeds |
| Plaster Materials | Portland cement, lime, gypsum, aggregates, admixtures, ASTM standards |
| Application Techniques | Scratch coat, brown coat, finish coat, three-coat systems, machine
spraying |
| Curing & Finishing | Moist curing, fogging, tooling, texture finishes, troubleshooting defects |
| Safety | Fall protection, scaffolding, PPE, silica dust, OSHA 29 CFR 1926 |
Key Requirements for Licensure
- Minimum 4 years of verifiable plastering experience
- Pass the Trade Exam (R-36 / CR-36) and the Statutes and Rules Exam (SRE)
- Secure a surety bond ($15,000 minimum)
,- Submit a criminal background check
- Carry workers' compensation insurance
- The qualifying party must receive a grade of at least 70% on each examination
Key Reference Standards
| Standard | Description |
|-|-|
| ASTM C926 | Standard Specification for Application of Portland Cement-Based Plaster |
| ASTM C1063 | Standard Specification for Installation of Lathing and Furring to Receive
Portland Cement-Based Plaster |
| OSHA 29 CFR 1926 | Construction safety standards |
| ASTM C150 | Standard Specification for Portland Cement |
| ASTM C847 | Standard Specification for Metal Lath |
2. SECTION 1: LICENSING, BUSINESS & LEGAL (Questions 1-25)
Q1. What is the primary purpose of the Arizona Registrar of Contractors (ROC)?
A) To regulate environmental standards for construction
B) To oversee licensing, discipline, and consumer protection for contractors
C) To set wages for construction laborers
D) To provide construction permits only
Answer: B
Rationale: The ROC's main role is to license contractors, enforce laws, discipline violators, and
protect consumers in the construction industry .
Q2. Which license classification would a plastering contractor most likely need under AZ ROC
regulations?
A) General Contractor (B)
B) Residential Specialty Contractor (R-36)
C) Commercial Contractor (A)
D) Dual License (A & B)
Answer: B
, Rationale: The R-36 license specifically authorizes residential plastering work, including
applying plaster coatings to interior and exterior surfaces of residential structures .
Q3. Which classification of plastering work is authorized under the R-36 license in Arizona?
A) Installing electrical wiring in walls
B) Applying plaster coatings to interior and exterior surfaces
C) Installing HVAC systems
D) Laying concrete slabs
Answer: B
Rationale: The R-36 license permits plastering activities, including applying plaster coatings to
various surfaces, but excludes electrical, HVAC, or concrete work .
Q4. According to Arizona law, what is the minimum amount of practical trade experience
required to qualify for a contractor's license?
A) Two years
B) Three years
C) Four years
D) Five years
Answer: C
Rationale: Arizona law requires a minimum of four years of practical or management trade
experience, at least two of which must have been within the last ten years.
Q5. What is the minimum passing score for each required section of the Arizona contractor
licensing examination?
A) 60%
B) 70%
C) 75%
D) 80%
Answer: B
