CR-21 LANDSCAPES AND
IRRIGATION AZROC TEST PREP
What procedure should be used to install a flagstone patio?
A. start at the edges and work toward the middle
B. start in the middle and work toward the edges
C. start at the high point and work toward the low area
D start at one end and work toward the other end - ANSWERS-A.
start at the edges and work toward the middle
The objective of laying stone is to maintain a tight and uniform
pattern across the paved area. Stone should have joints of less than 1/2
inch, and adjacent stones should touch. Stone that is placed in random
patterns is best laid in a fan shape. Begin in one corner of the paved
area and work along the edges, then fill the space between
The curing of concrete continues as long as its relative humidity
remains above _____.
A. 60 %
B. 90 %
C. 70 %
D. 80 % - ANSWERS-D. 80 %
,Curing; Increase in strength with age continues provided (1)
unhydrated cement is still present, (2) the concrete remains moist or
has a relative humidity above approximately 80% (Powers 1948), (3)
the concrete temperature remains favorable, and (4) sufficient space is
available for hydration products to form. When the relative humidity
within the concrete drops to about 80%, or the temperature of the
concrete drops below freezing, hydration and strength gain virtually
stop.
What is a 1/2 inch of accumulated organic material in a grassy area
called?
A. thatch layer
B. stolons
C. ground cover
D. mulch - ANSWERS-A. thatch layer
Thatch Dead, semi decomposed grass clippings on the surface of soil.
The ends of hem-fir wood girders, entering masonry walls shall be
provided with a minimum _____ inch air space on tops, sides, and
ends.
A. 2
,B. 1/2
C. 1/4
D. 1 - ANSWERS-B. 1/2
2304.11.2.5 Girder ends. The ends of wood girders entering exterior
masonry or concrete walls shall be provided with a 1/2-inch (12.7
mm) air space on top, sides and end, unless naturally durable or
preservative-treated wood is used.
When plastering, how far from the face can scaffolding be?
A. 14 inches
B. 18 inches
C. 10 inches
D. 12 inches - ANSWERS-B. 18 inches
(b)(3)(ii) The maximum distance from the face for plastering and
lathing operations shall be 18 inches (46 cm).
Gas piping embedded in concrete and exposed to moisture:
A. must be wrapped
B. must be accessible
C. must be protected in an approved manner
, D. must be PVC - ANSWERS-C. must be protected in an approved
manner
404.6 Piping in solid floors. Piping in solid floors shall be laid in
channels in the floor and covered in a manner that will allow access to
the piping with a minimum amount of damage to the building. Where
such piping is subject to exposure to excessive moisture or corrosive
substances, the piping shall be protected in an approved manner. As
an alternative to installation in channels, the piping shall be installed
in a conduit of Schedule 40 steel, wrought iron, PVC or ABS pipe in
accordance with Section 404.6.1 or 404.6.2.
Which of the following is an approved method for connecting
corrugated metal pipe?
A. slip joint
B. bell
C. welded
D. band and clamp - ANSWERS-D. band and clamp
Join corrugated galvanized steel pipe with couplings that slide over
both ends of the pipe and bolt tight at the top. Place a coupling and a
rubber sleeve on the upstream end of the pipe (with no bolts in the
coupling flanges at this time). Slide the next pipe into the coupling
until it butts against the end of the first pipe. Place the bolts into the
coupling flanges and tighten them. As the bolts are being tightened,
IRRIGATION AZROC TEST PREP
What procedure should be used to install a flagstone patio?
A. start at the edges and work toward the middle
B. start in the middle and work toward the edges
C. start at the high point and work toward the low area
D start at one end and work toward the other end - ANSWERS-A.
start at the edges and work toward the middle
The objective of laying stone is to maintain a tight and uniform
pattern across the paved area. Stone should have joints of less than 1/2
inch, and adjacent stones should touch. Stone that is placed in random
patterns is best laid in a fan shape. Begin in one corner of the paved
area and work along the edges, then fill the space between
The curing of concrete continues as long as its relative humidity
remains above _____.
A. 60 %
B. 90 %
C. 70 %
D. 80 % - ANSWERS-D. 80 %
,Curing; Increase in strength with age continues provided (1)
unhydrated cement is still present, (2) the concrete remains moist or
has a relative humidity above approximately 80% (Powers 1948), (3)
the concrete temperature remains favorable, and (4) sufficient space is
available for hydration products to form. When the relative humidity
within the concrete drops to about 80%, or the temperature of the
concrete drops below freezing, hydration and strength gain virtually
stop.
What is a 1/2 inch of accumulated organic material in a grassy area
called?
A. thatch layer
B. stolons
C. ground cover
D. mulch - ANSWERS-A. thatch layer
Thatch Dead, semi decomposed grass clippings on the surface of soil.
The ends of hem-fir wood girders, entering masonry walls shall be
provided with a minimum _____ inch air space on tops, sides, and
ends.
A. 2
,B. 1/2
C. 1/4
D. 1 - ANSWERS-B. 1/2
2304.11.2.5 Girder ends. The ends of wood girders entering exterior
masonry or concrete walls shall be provided with a 1/2-inch (12.7
mm) air space on top, sides and end, unless naturally durable or
preservative-treated wood is used.
When plastering, how far from the face can scaffolding be?
A. 14 inches
B. 18 inches
C. 10 inches
D. 12 inches - ANSWERS-B. 18 inches
(b)(3)(ii) The maximum distance from the face for plastering and
lathing operations shall be 18 inches (46 cm).
Gas piping embedded in concrete and exposed to moisture:
A. must be wrapped
B. must be accessible
C. must be protected in an approved manner
, D. must be PVC - ANSWERS-C. must be protected in an approved
manner
404.6 Piping in solid floors. Piping in solid floors shall be laid in
channels in the floor and covered in a manner that will allow access to
the piping with a minimum amount of damage to the building. Where
such piping is subject to exposure to excessive moisture or corrosive
substances, the piping shall be protected in an approved manner. As
an alternative to installation in channels, the piping shall be installed
in a conduit of Schedule 40 steel, wrought iron, PVC or ABS pipe in
accordance with Section 404.6.1 or 404.6.2.
Which of the following is an approved method for connecting
corrugated metal pipe?
A. slip joint
B. bell
C. welded
D. band and clamp - ANSWERS-D. band and clamp
Join corrugated galvanized steel pipe with couplings that slide over
both ends of the pipe and bolt tight at the top. Place a coupling and a
rubber sleeve on the upstream end of the pipe (with no bolts in the
coupling flanges at this time). Slide the next pipe into the coupling
until it butts against the end of the first pipe. Place the bolts into the
coupling flanges and tighten them. As the bolts are being tightened,
