Hardscaping and Irrigation Systems Questions With
Complete Solutions
"Weep holes" may be utilized in which of the following methods
of change in site grading?
a) stone rip rap
b) timber cribbing
c) retaining walls
d) earth embarkment Correct Answers Retaining walls
A 120-volt electrical system will:
a) not require a GFCI circuit if installed near a poll
b) not provide enough electricity to light all trees
c) be inadequate for low voltage systems
d) require a licensed electrician to provide 115-to-120-volt
circuit where the transformer is located Correct Answers
require a licensed electrician to provide 115-to-120-volt circuit
where the transformer is located
A 3:1 grade has an 18 foot run, what is the height?
a) 3 feet
b) 6 feet
c) 15 feet
d) 54 feet Correct Answers 6 feet
18/3 = 6
horizontal (run) : vertical ( rise)
,a 60-PSI main line rises 20 feet to a valve. What is the static
pressure at the valve?
a) 40 PSI
b) 68.66 PSI
c) 51.34 PSI
d) 48.95 PSI Correct Answers 51.34 PSI
Simplified irrigation design
A chemical NOT used as a preservative for treating wood
fencing is:
a) pentachlorophenol
b) ammoniacal copper zinc arsenate
c) calcium chloride
d) creosote Correct Answers calcium chloride
A concrete slab should be bull floated as soon as possible after:
a) placing
b) screeding
c) floating
d) edging Correct Answers screeding
a CR-21 licensee may build a decorative wall up to what height?
a) 6 feet
b) 8 feet
c) 3 feet
d) 4 feet Correct Answers 6 feet
,A CR-21 licensee may build a retaining wall up to what height?
a) 2 feet
b) 3 feet
c) 6 feet
d) 4 feet Correct Answers 3 feet
a CR-21 licensee may install residential misting systems under
what PSI?
a) 1000 psi
b) 120 psi
c) 500 psi
d) 90 psi Correct Answers 1000 psi
A fence with round rails and posts where the rails are reduced to
dowels are called?
a) split rail
b) paddle post
c) picket
d) peeled post and rail Correct Answers peeled post and rail
A footing for a fence is 2 feet deep, 1 foot wide and 40 feet in
length, how many cubic yards of concrete will be needed?
a) 8.88 cy
b) 2.96 cy
c) 16 cy
d) 80 cy Correct Answers 2.96 cy
, A job takes 2 men 40 hours each to complete. The employer has
a 5-man crew, assuming they work an 8-hour day, how long will
it take the 5-man crew to complete the same job?
a) 3 days
b) 1 day
c) 2 days
d) 4 days Correct Answers 2 days
2 men x 40 hours each = 80 man hours
80 man hours / 5 men = 16 hours or 2 days
A lintel should have a minimum of how many inches of bearing
over the ends of each jamb?
a) 6 inches
b) 4 inches
c) 5 inches
d) 3 inches Correct Answers 4 inches
A masonry pattern with all of the vertical joints aligned is called
a ___ bond
a) common
b) Flemish
c) running
d) stack Correct Answers stack
A maximum allowable bed joint thickness between masonry
units is ____ inch
Complete Solutions
"Weep holes" may be utilized in which of the following methods
of change in site grading?
a) stone rip rap
b) timber cribbing
c) retaining walls
d) earth embarkment Correct Answers Retaining walls
A 120-volt electrical system will:
a) not require a GFCI circuit if installed near a poll
b) not provide enough electricity to light all trees
c) be inadequate for low voltage systems
d) require a licensed electrician to provide 115-to-120-volt
circuit where the transformer is located Correct Answers
require a licensed electrician to provide 115-to-120-volt circuit
where the transformer is located
A 3:1 grade has an 18 foot run, what is the height?
a) 3 feet
b) 6 feet
c) 15 feet
d) 54 feet Correct Answers 6 feet
18/3 = 6
horizontal (run) : vertical ( rise)
,a 60-PSI main line rises 20 feet to a valve. What is the static
pressure at the valve?
a) 40 PSI
b) 68.66 PSI
c) 51.34 PSI
d) 48.95 PSI Correct Answers 51.34 PSI
Simplified irrigation design
A chemical NOT used as a preservative for treating wood
fencing is:
a) pentachlorophenol
b) ammoniacal copper zinc arsenate
c) calcium chloride
d) creosote Correct Answers calcium chloride
A concrete slab should be bull floated as soon as possible after:
a) placing
b) screeding
c) floating
d) edging Correct Answers screeding
a CR-21 licensee may build a decorative wall up to what height?
a) 6 feet
b) 8 feet
c) 3 feet
d) 4 feet Correct Answers 6 feet
,A CR-21 licensee may build a retaining wall up to what height?
a) 2 feet
b) 3 feet
c) 6 feet
d) 4 feet Correct Answers 3 feet
a CR-21 licensee may install residential misting systems under
what PSI?
a) 1000 psi
b) 120 psi
c) 500 psi
d) 90 psi Correct Answers 1000 psi
A fence with round rails and posts where the rails are reduced to
dowels are called?
a) split rail
b) paddle post
c) picket
d) peeled post and rail Correct Answers peeled post and rail
A footing for a fence is 2 feet deep, 1 foot wide and 40 feet in
length, how many cubic yards of concrete will be needed?
a) 8.88 cy
b) 2.96 cy
c) 16 cy
d) 80 cy Correct Answers 2.96 cy
, A job takes 2 men 40 hours each to complete. The employer has
a 5-man crew, assuming they work an 8-hour day, how long will
it take the 5-man crew to complete the same job?
a) 3 days
b) 1 day
c) 2 days
d) 4 days Correct Answers 2 days
2 men x 40 hours each = 80 man hours
80 man hours / 5 men = 16 hours or 2 days
A lintel should have a minimum of how many inches of bearing
over the ends of each jamb?
a) 6 inches
b) 4 inches
c) 5 inches
d) 3 inches Correct Answers 4 inches
A masonry pattern with all of the vertical joints aligned is called
a ___ bond
a) common
b) Flemish
c) running
d) stack Correct Answers stack
A maximum allowable bed joint thickness between masonry
units is ____ inch
