CR-21 AZROC test prep
Study online at https://quizlet.com/_emcbhi
1. Which of the following is a cohesive soil? Clay
2. How many strap are required on a 4 foot chain link 4
fence
3. How wide should the footer be for a CMU wall? Twice the width of the
block
4. Blue Stake uses Green to mark which of the following? Sanitary Sewer
5. In sandy soil the movement of water is more vertical then hori-
zontal
6. What type of backflow prevention is used between Atmospheric vacuum
sprinkler and circuit valve breaker
7. How do you connect PE to PVC Compression Adapter
8. What determines the pattern & quantity of water of a Spray Nozzle
spray head?
9. What method of tree transportation is usually limited Bare rooted
to dormant species?
10. What insect is bad for turf? Scale
11. Brick is laid on concrete foundations, the first bed of 3/4"
mortar joint shall be what maximum thickness?
12. How long should you wait after the first course of a A few hours (2-3)
black wall before continuing?
13. When installing an electrical (irrigation) pump, a cir- 50ft
cuit breaker (disconnect) must be installed within
______ feet of the pump
, CR-21 AZROC test prep
Study online at https://quizlet.com/_emcbhi
14. What is the maximum height allowed for a single 8'
grout pour of a masonry wall?
15. How do you attach wood bracing on a gate? Diagonally with the bot-
tom at the hinge side
16. There are four (4) RCV valves in a sprinkler system that 14.4
are wired independently and draw 0.15 amps each.
If the system voltage is 24 volts, what is the total
wattage demand for these four (4) valves?
VOLTxAMP=WATT
17. How should the trowel be held against the wall when Slight angle
plastering with portland cement used for exterior ap-
plication?
18. What is a 1/2 inch of accumulated organic material in thatch layer
a grassy area called?
19. According to OSHA, what type of evacuation plan is Oral
needed for an employer with 10 or fewer employees?
20. A CR-21 licensee may install residential misting sys- 1000psi
tems under what PSI?
21. How do you properly plant ground cover? in rows, each row stag-
gered
22. Refer to friction loss chart. You have 100 feet of pipe 1/2"
carrying 5 GPM of water. What is the smallest pipe that
you can use while keeping the velocity below 5' per
second?
Study online at https://quizlet.com/_emcbhi
1. Which of the following is a cohesive soil? Clay
2. How many strap are required on a 4 foot chain link 4
fence
3. How wide should the footer be for a CMU wall? Twice the width of the
block
4. Blue Stake uses Green to mark which of the following? Sanitary Sewer
5. In sandy soil the movement of water is more vertical then hori-
zontal
6. What type of backflow prevention is used between Atmospheric vacuum
sprinkler and circuit valve breaker
7. How do you connect PE to PVC Compression Adapter
8. What determines the pattern & quantity of water of a Spray Nozzle
spray head?
9. What method of tree transportation is usually limited Bare rooted
to dormant species?
10. What insect is bad for turf? Scale
11. Brick is laid on concrete foundations, the first bed of 3/4"
mortar joint shall be what maximum thickness?
12. How long should you wait after the first course of a A few hours (2-3)
black wall before continuing?
13. When installing an electrical (irrigation) pump, a cir- 50ft
cuit breaker (disconnect) must be installed within
______ feet of the pump
, CR-21 AZROC test prep
Study online at https://quizlet.com/_emcbhi
14. What is the maximum height allowed for a single 8'
grout pour of a masonry wall?
15. How do you attach wood bracing on a gate? Diagonally with the bot-
tom at the hinge side
16. There are four (4) RCV valves in a sprinkler system that 14.4
are wired independently and draw 0.15 amps each.
If the system voltage is 24 volts, what is the total
wattage demand for these four (4) valves?
VOLTxAMP=WATT
17. How should the trowel be held against the wall when Slight angle
plastering with portland cement used for exterior ap-
plication?
18. What is a 1/2 inch of accumulated organic material in thatch layer
a grassy area called?
19. According to OSHA, what type of evacuation plan is Oral
needed for an employer with 10 or fewer employees?
20. A CR-21 licensee may install residential misting sys- 1000psi
tems under what PSI?
21. How do you properly plant ground cover? in rows, each row stag-
gered
22. Refer to friction loss chart. You have 100 feet of pipe 1/2"
carrying 5 GPM of water. What is the smallest pipe that
you can use while keeping the velocity below 5' per
second?
