AZROC CR-21 LANDSCAPES AND IRRIGATION
QUESTION BANK |ACTUAL QUESTIONS AND
VERIFIED ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
What determines the size of the pipe used in a sprinkler system?
A. How tall the grass is
B. How far the run is from the water source
C. How many circuit there are
D. How many GPM is needed to flow through it
CORRECT ANSWER
D. How many GPM is needed to flow through it
Matching Water Flow and Pressure with Pipe Size To select and specify the most suitable
pipe, the irrigation system designer must know the amount of water demanded by the
sprinkler heads that are downstream from each section of pipe.
Question 2
What best describes foliage on trees?
A. the leaves, branches and the trunk
B. the leaves
C. the leaves and branches
D. the flowers on the tree
CORRECT ANSWER
1
@THE STUDY VAULT
, B. the leaves
Question 3
Which of the following species include both evergreen and deciduous varieties?
A. cypress
B. maple
C. oak
D. pine
CORRECT ANSWER
C. oak
Question 4
What should be provided as a cover for the drain tile before installing the pond liner
where a subdrain is used?
Question 5
A. 4 inches of pea gravel
B. a pool grate
C. screen with a 1/4 inch mesh
D. 8 inches of medium sized rock
CORRECT ANSWER
A. 4 inches of pea gravel
2
@THE STUDY VAULT
,Question 6
The use of mulch on new plants does all except?
Question 7
A. Control Temperature fluctuations
B. Stops insects
C. Discourages weed growth
D. Aid in water retention
CORRECT ANSWER
B. Stops insects
Question 8
If a contractor is in willful violation of Arizona Blue Stake , what is the maximum fine?
A. $5000.00
B. $500.00
C. $250.00
D. $300.00
CORRECT ANSWER
A. $5000.00
Arizona law (A.R.S. 40-360.21-32) says underground utilities must be marked before any
type of excavation by anyone, including professional excavators, homeowners and
anyone else whose work disrupts the subsurface of the earth. This law is enforced by the
Arizona Corporation Commission (ACC) who can issue citations for civil penalties of up to
$5,000 per violation.
3
@THE STUDY VAULT
, Question 9
Which finish is best used when subject to regular dampness?
A. Putty finish
B. Sand finish
C. Portland cement Plaster finish
D. Keenes cement finish
CORRECT ANSWER
C. Portland cement Plaster finish
Question 10
What does the color green indicate?
Question 11
A. Communications & phones
B. Electrical
C. Sewer
D. Potable water
CORRECT ANSWER
C. Sewer
Electric Power Distribution - Safety Red Gas, Oil Distribution - High Visibility Safety Yellow
Telephone, Cable, Fiber Optics - Safety Alert Orange Water Systems - Safety Precaution
Blue Sanitary Sewer Systems - Safety Green Reclaimed Water - Purple
4
@THE STUDY VAULT
QUESTION BANK |ACTUAL QUESTIONS AND
VERIFIED ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
What determines the size of the pipe used in a sprinkler system?
A. How tall the grass is
B. How far the run is from the water source
C. How many circuit there are
D. How many GPM is needed to flow through it
CORRECT ANSWER
D. How many GPM is needed to flow through it
Matching Water Flow and Pressure with Pipe Size To select and specify the most suitable
pipe, the irrigation system designer must know the amount of water demanded by the
sprinkler heads that are downstream from each section of pipe.
Question 2
What best describes foliage on trees?
A. the leaves, branches and the trunk
B. the leaves
C. the leaves and branches
D. the flowers on the tree
CORRECT ANSWER
1
@THE STUDY VAULT
, B. the leaves
Question 3
Which of the following species include both evergreen and deciduous varieties?
A. cypress
B. maple
C. oak
D. pine
CORRECT ANSWER
C. oak
Question 4
What should be provided as a cover for the drain tile before installing the pond liner
where a subdrain is used?
Question 5
A. 4 inches of pea gravel
B. a pool grate
C. screen with a 1/4 inch mesh
D. 8 inches of medium sized rock
CORRECT ANSWER
A. 4 inches of pea gravel
2
@THE STUDY VAULT
,Question 6
The use of mulch on new plants does all except?
Question 7
A. Control Temperature fluctuations
B. Stops insects
C. Discourages weed growth
D. Aid in water retention
CORRECT ANSWER
B. Stops insects
Question 8
If a contractor is in willful violation of Arizona Blue Stake , what is the maximum fine?
A. $5000.00
B. $500.00
C. $250.00
D. $300.00
CORRECT ANSWER
A. $5000.00
Arizona law (A.R.S. 40-360.21-32) says underground utilities must be marked before any
type of excavation by anyone, including professional excavators, homeowners and
anyone else whose work disrupts the subsurface of the earth. This law is enforced by the
Arizona Corporation Commission (ACC) who can issue citations for civil penalties of up to
$5,000 per violation.
3
@THE STUDY VAULT
, Question 9
Which finish is best used when subject to regular dampness?
A. Putty finish
B. Sand finish
C. Portland cement Plaster finish
D. Keenes cement finish
CORRECT ANSWER
C. Portland cement Plaster finish
Question 10
What does the color green indicate?
Question 11
A. Communications & phones
B. Electrical
C. Sewer
D. Potable water
CORRECT ANSWER
C. Sewer
Electric Power Distribution - Safety Red Gas, Oil Distribution - High Visibility Safety Yellow
Telephone, Cable, Fiber Optics - Safety Alert Orange Water Systems - Safety Precaution
Blue Sanitary Sewer Systems - Safety Green Reclaimed Water - Purple
4
@THE STUDY VAULT
