Hardscaping and Irriga on Systems With complete
solu on | RATED A+ | 2026 | UPDATED
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
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
Thatch Layer
What should be provided as a cover for the drain 'le before installing the pond liner where
subdrain is used?
a) 4 inches of pea gravel
b) screen with 1/4 inch mesh
c) a pool grate
d) 8 inches of medium sized rock
4 inches of pea gravel
How do you properly plant ground cover?
a) in a circular pa+ern
b) in rows, each row staggered
c) in groups of 2
d) 18 inches apart in rows
In rows, each row staggered
,You are going to pour a concrete pad that is 16 feet by 22 feet and 4 inches thick, how many
cubic yards of concrete are needed?
a) 7.3
b) 6.3
c) 3.3
d) 4.3
4.3 cubic yards
4.3 cubic yards
4inches ---> 0.3333
Cubic feet to cubic yards /27
16220.333=117.3333
117.3333/27 = 4.3 cubic yards
How wide should the footer be for a CMU wall?
a) equal to the width of the block
b) equal to the depth of the frostline
c) three 'mes the width of the block
d) twice the width of the block
Twice the width of the block
How does a contractor know how to fill a trench to a certain grade?
a) by guessing
b) the type of soil
c) by available backfill
d) the specifica'ons
The specifica'ons
How many 8inch x 8inchx16inch concrete masonry blocks will be required for a wall that is 8
feet 8 inches high and 104 feet long?
a) 936
b) 1088
c) 1124
d) 1014
,1014 blocks
8 feet * 12 inches = 96 inches + 8 inches = 104 inches
104 inches / 8 inches = 13 for height
104 feet * 12 inches = 1248 inches
1248 inches / 16 inches = 78 for length
13 * 78 = 1014 blocks
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
29 inches
How do you choose a weir?
a) by the cost
b) without calcula'ons, it is be+er to go with a bigger weir
c) without calcula'ons, it is be+er to go with a smaller weir
d) by the material used
Without calcula'ons, it is be+er 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
4 feet
Which is the most common voltage requirement for the opera'on of a typical irriga'on system
remote control valve?
a) 24 volt DC
b) 12 volt DC
c) 12 volt AC
d) 24 volt AC
, 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
Decrease fruit bearing capacity
What type of tree would make a good focal point and screen?
a) wide oval shaped
b) pyramidal
c) spreading
d) vase shaped
Wide oval Shaped
What is necessary to supply power to the electrical source on a water fixture?
a) 12-3 wire
b) flexible conduit
c) 3 phase motor
d) schedule 40 conduit
Schedule 40 conduit
What fiBng is used for changing direc'ons with a pipe ver'cally or horizontally?
a) reducing 90 degree threaded elbow
b) 90 degree slip elbow
c) 90 degree threaded elbow
d) reducing 90 degree slip elbow
90 degree slip elbow
Which of the following should NEVER be done when transplan'ng a Balled and Burlapped (B&B)
evergreen?
a) loosen the burlap around the soil ball
b) water deeply when the hole is half full
solu on | RATED A+ | 2026 | UPDATED
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
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
Thatch Layer
What should be provided as a cover for the drain 'le before installing the pond liner where
subdrain is used?
a) 4 inches of pea gravel
b) screen with 1/4 inch mesh
c) a pool grate
d) 8 inches of medium sized rock
4 inches of pea gravel
How do you properly plant ground cover?
a) in a circular pa+ern
b) in rows, each row staggered
c) in groups of 2
d) 18 inches apart in rows
In rows, each row staggered
,You are going to pour a concrete pad that is 16 feet by 22 feet and 4 inches thick, how many
cubic yards of concrete are needed?
a) 7.3
b) 6.3
c) 3.3
d) 4.3
4.3 cubic yards
4.3 cubic yards
4inches ---> 0.3333
Cubic feet to cubic yards /27
16220.333=117.3333
117.3333/27 = 4.3 cubic yards
How wide should the footer be for a CMU wall?
a) equal to the width of the block
b) equal to the depth of the frostline
c) three 'mes the width of the block
d) twice the width of the block
Twice the width of the block
How does a contractor know how to fill a trench to a certain grade?
a) by guessing
b) the type of soil
c) by available backfill
d) the specifica'ons
The specifica'ons
How many 8inch x 8inchx16inch concrete masonry blocks will be required for a wall that is 8
feet 8 inches high and 104 feet long?
a) 936
b) 1088
c) 1124
d) 1014
,1014 blocks
8 feet * 12 inches = 96 inches + 8 inches = 104 inches
104 inches / 8 inches = 13 for height
104 feet * 12 inches = 1248 inches
1248 inches / 16 inches = 78 for length
13 * 78 = 1014 blocks
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
29 inches
How do you choose a weir?
a) by the cost
b) without calcula'ons, it is be+er to go with a bigger weir
c) without calcula'ons, it is be+er to go with a smaller weir
d) by the material used
Without calcula'ons, it is be+er 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
4 feet
Which is the most common voltage requirement for the opera'on of a typical irriga'on system
remote control valve?
a) 24 volt DC
b) 12 volt DC
c) 12 volt AC
d) 24 volt AC
, 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
Decrease fruit bearing capacity
What type of tree would make a good focal point and screen?
a) wide oval shaped
b) pyramidal
c) spreading
d) vase shaped
Wide oval Shaped
What is necessary to supply power to the electrical source on a water fixture?
a) 12-3 wire
b) flexible conduit
c) 3 phase motor
d) schedule 40 conduit
Schedule 40 conduit
What fiBng is used for changing direc'ons with a pipe ver'cally or horizontally?
a) reducing 90 degree threaded elbow
b) 90 degree slip elbow
c) 90 degree threaded elbow
d) reducing 90 degree slip elbow
90 degree slip elbow
Which of the following should NEVER be done when transplan'ng a Balled and Burlapped (B&B)
evergreen?
a) loosen the burlap around the soil ball
b) water deeply when the hole is half full
