Hardscaping and Irrigation Systems Best Exam Questions & Answers 100% Accurate Rated A+
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Course
Hardscaping and Irrigation Systems
Institution
Hardscaping And Irrigation Systems
What is the minimum thickness of brick for the exterior wall of a fireplace?
a) 6 inches
b) 8 inches
c) 10 inches
d) 9 inches - CORRECT ANSWER-8 Inches
What is 1/2 inch of accumulated organic material in a grassy area called?
a) mulch
b) ground cover
c) stolons
d) thatch layer - CO...
What is the maximum height above grade of a wooden deck that a CR-21 license may
build?
a) 36 inches
b) 48 inches
c) 18 inches
d) 29 inches - CORRECT ANSWER-29 inches
How do you choose a weir?
a) by the cost
b) without calculations, it is better to go with a bigger weir
, c) without calculations, it is better to go with a smaller weir
d) by the material used - CORRECT ANSWER-Without calculations, it is better to go
with a bigger weir
How high can a segmented wall be built?
a) 3 feet
b) 6 feet
c) 9 feet
d) 4 feet - CORRECT ANSWER-4 feet
Which is the most common voltage requirement for the operation of a typical irrigation
system remote control valve?
a) 24 volt DC
b) 12 volt DC
c) 12 volt AC
d) 24 volt AC - CORRECT ANSWER-24 volt AC
All of the following are reasons for pruning plants except to:
a) restricted size
b) rejuvenate growth
c) decrease fruit bearing capacity
d) improve flowering - CORRECT ANSWER-Decrease fruit bearing capacity
What type of tree would make a good focal point and screen?
a) wide oval shaped
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