Page 1 of 155
Hardscaping & Irrigation Systems Practice
Exam ] High-Yield Questions &Answers
Rationales Instant Download Pdf
Q1. Which of the following best defines "hardscaping" in the
context of the CR-21 license?
A) The planting and maintenance of vegetation
B) The design and installation of non-plant features in a
landscape
C) The application of fertilizers and pesticides
D) The installation of swimming pools and spas
Answer: B
Rationale: Hardscaping involves non-living landscape components
such as patios, retaining walls, pavers, walkways, and other
structural elements. The CR-21 license specifically covers these
features along with irrigation systems .
,Page 2 of 155
Q2. The CR-21 license allows which of the following scopes
of work?
A) Structural engineering of retaining walls over 6 feet
B) Commercial building construction
C) Irrigation systems and outdoor hardscape features
D) Electrical wiring for residential buildings
Answer: C
Rationale: CR-21 covers landscape irrigation systems, paving,
retaining walls, and other external hardscape features. It
excludes structural building work and requires separate licensing
for complex engineering projects .
,Page 3 of 155
Q3. Which of the following license classifications were
consolidated into the CR-21 Hardscaping and Irrigation
Systems license?
A) C-21 Landscaping and Irrigation Systems and R-21
Residential Hardscaping
B) L-26 Landscaping and A-21 Agricultural Irrigation
C) C-21 Commercial Paving and R-21 Residential Grading
D) B-21 Building Construction and L-21 Landscape Design
Answer: A
Rationale: The CR-21 license consolidated the separate C-21
(Commercial) and R-21 (Residential) classifications into a single
dual license covering both residential and commercial
hardscaping and irrigation work .
, Page 4 of 155
Q4. To obtain a CR-21 license in Arizona, the Qualifying
Party must generally meet which requirements? (Select all that
apply)
A) Have 4 years of verifiable landscaping experience
B) Pass both the Trade Exam and the Statutes & Rules Exam (SRE)
C) Be at least 18 years old
D) Hold a bachelor's degree in landscape architecture
Answer: A, B, C
Rationale: The Qualifying Party needs 4 years of verifiable
landscaping experience, must pass both the Trade Exam and the
Statutes & Rules Exam (SRE), and be at least 18 years old. A
degree is not required .
Q5. Approximately how much is the application fee for a
commercial CR-21 license (as of recent years)?
Hardscaping & Irrigation Systems Practice
Exam ] High-Yield Questions &Answers
Rationales Instant Download Pdf
Q1. Which of the following best defines "hardscaping" in the
context of the CR-21 license?
A) The planting and maintenance of vegetation
B) The design and installation of non-plant features in a
landscape
C) The application of fertilizers and pesticides
D) The installation of swimming pools and spas
Answer: B
Rationale: Hardscaping involves non-living landscape components
such as patios, retaining walls, pavers, walkways, and other
structural elements. The CR-21 license specifically covers these
features along with irrigation systems .
,Page 2 of 155
Q2. The CR-21 license allows which of the following scopes
of work?
A) Structural engineering of retaining walls over 6 feet
B) Commercial building construction
C) Irrigation systems and outdoor hardscape features
D) Electrical wiring for residential buildings
Answer: C
Rationale: CR-21 covers landscape irrigation systems, paving,
retaining walls, and other external hardscape features. It
excludes structural building work and requires separate licensing
for complex engineering projects .
,Page 3 of 155
Q3. Which of the following license classifications were
consolidated into the CR-21 Hardscaping and Irrigation
Systems license?
A) C-21 Landscaping and Irrigation Systems and R-21
Residential Hardscaping
B) L-26 Landscaping and A-21 Agricultural Irrigation
C) C-21 Commercial Paving and R-21 Residential Grading
D) B-21 Building Construction and L-21 Landscape Design
Answer: A
Rationale: The CR-21 license consolidated the separate C-21
(Commercial) and R-21 (Residential) classifications into a single
dual license covering both residential and commercial
hardscaping and irrigation work .
, Page 4 of 155
Q4. To obtain a CR-21 license in Arizona, the Qualifying
Party must generally meet which requirements? (Select all that
apply)
A) Have 4 years of verifiable landscaping experience
B) Pass both the Trade Exam and the Statutes & Rules Exam (SRE)
C) Be at least 18 years old
D) Hold a bachelor's degree in landscape architecture
Answer: A, B, C
Rationale: The Qualifying Party needs 4 years of verifiable
landscaping experience, must pass both the Trade Exam and the
Statutes & Rules Exam (SRE), and be at least 18 years old. A
degree is not required .
Q5. Approximately how much is the application fee for a
commercial CR-21 license (as of recent years)?
