AZ ROC TRADE EXAM B-3 LICENSE QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026
Nails used for installing Hardboard panel siding vertically must accommodate the sheathing and
penetrate the framing a minimum of how much? - Answers 1-1/2 inches
When framing openings in floors with a header and trimmer joists, what maximum header joist span
is allowed with a single member header? - Answers 4 feet
Above the handrail and below the head, what is the minimum clear opening on a stairwell? - Answers
36 inches
When installing vinyl siding, how much overlap should you allow for thermal expansion? - Answers 1
inch
What is the first step you should take when applying specialty finishes? - Answers Read the
manufacturers use instructions.
What is the appropriate gap between gypsum board and a tub surround? - Answers 1/4 inch
Sprayed fire resistant materials are identified by ____________ and thickness required for a given
rating. - Answers Density.
What is the most important factor in determining the "R" value of blown in insulation? - Answers
Density.
Refer to the illustration of a 2 story house w/ lap siding plans, (complete set of plans at the test
center), What are the lengths of the second floor trusses? - Answers 30 feet 6 inches and 13 feet 5
inches.
Refer tot the illustration of a 2 story house w/ lap siding plans, (complete set of plans at the test
center), what is the height of the foyer in inches? - Answers inches.
A ____________ is a system component that receives the inputs from automatic and manual fire
alarm devices and may be capable of supplying power to the detection devices and transponders or
off-premises transmitters. - Answers Fire Alarm Control Unit.
On graded sites, the top of any exterior foundation shall extend above the elevation of: - Answers The
street gutter at point of discharge.
What is the thickness of a footing for a single story frame residence? - Answers 6 inches.
Which of the following is the most important when deciding the depth of a footing? - Answers Depth
of the frost line.
Refer tot the illustration of a 2 story house w/ lap siding plans, (available at the testing center) How
many acres is the site for the house plan? - Answers 1/3 acre.
Which of the following can be used as backfill outside a foundation without being compacted? -
Answers Controlled low strength material.
For soils classified as sandy gravel, foundation pressure shall not exceed how many PSI? - Answers
3000 Pounds per Square Foot.
Which of the following shall not be assumed to have a load bearing capacity for foundations? -
Answers Organic Silt
The soil report states that the soil is sandy-gravel. What is the soil's load-bearing value? - Answers
3,000 PSF
According to code, what is the minimum required width of a footing in soil rated at 2000 PSF for a
single story building with 8 inch thick masonry walls? - Answers 12 inches
What is the minimum footing width of a one story light-frame construction building? - Answers 12
inches
Which of the following would cause crazing (superficial cracking) on the surface of concrete? -
Answers Early drying due to late curing or excessive water on surface.
Refer to the illustration of a 2 story house w/ lap siding plans, (complete set of plans at the test
center), How many cubic yards of concrete is needed for the floor and garage slabs less the fireplace
area? - Answers 23 cubic yards.
According to code, the minimum thickness of a concrete slab that is supported directly on the ground
shall be ___________ inches. - Answers 3.5
According to the code, plain concrete for basement walls and foundations shall be what minimum
compressive strength (psi)? - Answers 2500 psi
the frost line is 24 inches below the surface. What is the required depth of a footing? - Answers Below
the frost line.
A lot shall be graded to drain surface water away from foundation walls for a minimum of
___________ feet. - Answers 10
, What is the minimum overlap of a vapor barrier in an unvented crawl space. - Answers 6 inches
The minimum dept of footings below the undisturbed ground surface shall be_______. - Answers 12
inches
According to code, footings shall be stepped when? - Answers If the ground surface slopes more than
on unit vertical to ten units horizontal or where necessary to change the top footing surface elevation.
What is the minimum concrete psi that is required for basement walls or slabs not exposed to
weather? - Answers 2500 psi
Refer to the illustration of a 2 story house w/ lap siddng plans, (complete set of plans at the test
center), How many cubic yards of concrete would be required for the footer only? - Answers 10 to 12
cubic yards.
In conventional light-frame construction on soil with a load bearing value of 2,000 psi for a one story
building with 8 inch hollow concrete masonry walls, what is the minimum thickness of the spread
footing? - Answers 6 inches
Concrete Spread footing projections shall be at least ___________ and shall not exceed the thickness
of the footings. - Answers 2 inches
A concrete slab-on-ground cast monolithically with the footing placement at the footing top and
bottom? - Answers 1 number 5 of two number 4 bars in the middle third of the footing.
What is the minimum footing width of a 2 story light frame construction building with a soil bearing
capacity of 2000 PSF? - Answers 12 inches
According to code, foundation plates or sills shall be anchored tothe foundation with bolts spaced not
more than _________ inches apart? - Answers 72 inches
You are finishing a concrete surface, defects of the finished product such as crazing, dusting and
spalling are caused by? - Answers Overworking the concrete surface.
Floating adn troweling concrete too early in the curing process can cause? - Answers Water to rise
and weaken concrete surface.
How close can your string line be to the cinder block wall you are building? - Answers 1/16 inch
Wall ties should be placed how far from the edge of a masonry unit? - Answers 1/2 inch
What is the maximum vertical distance allowed between headers when building multi-wythe masonry
walls? - Answers 24 inches
What is the ideal size of head and bed joints in masonry construction? - Answers 3/8 inch
What is the minimum depth of a hearth in front of a masonry fireplace? - Answers 16 inches
What is the required minimum diameter of bolts used to anchor a roof structure to a masonry wall? -
Answers 1/2 inch
How high above the paved surface does the weep screed need to be? - Answers 2 inches
Weep screeds shall be a minimum of ___________ corrosion resistant weep screed or plastic weep
screed. - Answers 0.019 inch
Which type of hydrated lime is best to use in mortar for heavy bearing? - Answers Type S
What should be added to Portland cement to create mortar? - Answers Sand, lime and water.
What is added to mortar to increase is bonding abilities? - Answers Add hydrated lime
Three types of masonry ties are__________ - Answers Rectangular, Corrugated, and Z.
on a double wythe masonry wall with a 2 inch cavity, what is the required spacing of reinforcing metal
ties? - Answers 4 1/2 square feet
ties for veneer shall be spaced no greater than - Answers 24 inches on center.
Panel wall framing track shall have a minimum flange width of ________? - Answers 1-1/4 inch
What is the minimum size screw for the attaching gypsum board to metal studs? - Answers #6
Engineered structural wood product finished on 4 sides is known as? - Answers Premium Glulam
Beam
Rectangular shap having 2 sides cut into the edge of a board is known as___________? - Answers
Rabbet
What is the spacing required if using 1-1/4 inch screws to hang drywall on studs that are 24 inches on
center? - Answers 12 inches.
If you peel of siding and the wood is dark brown and crumbly, what is the probable cause? - Answers
Dry rot
Refer to the illustration of a story house W/ lap siding plans, (complete set of plans at the test center),
what is the height from the first floor to the landing? - Answers 61 1/2 inches
Concerning exterior sheathing, how far above grade should it extend? - Answers 6 inches
Which of the following wood is most resistant to termites? - Answers Redwood
Nails used for installing Hardboard panel siding vertically must accommodate the sheathing and
penetrate the framing a minimum of how much? - Answers 1-1/2 inches
When framing openings in floors with a header and trimmer joists, what maximum header joist span
is allowed with a single member header? - Answers 4 feet
Above the handrail and below the head, what is the minimum clear opening on a stairwell? - Answers
36 inches
When installing vinyl siding, how much overlap should you allow for thermal expansion? - Answers 1
inch
What is the first step you should take when applying specialty finishes? - Answers Read the
manufacturers use instructions.
What is the appropriate gap between gypsum board and a tub surround? - Answers 1/4 inch
Sprayed fire resistant materials are identified by ____________ and thickness required for a given
rating. - Answers Density.
What is the most important factor in determining the "R" value of blown in insulation? - Answers
Density.
Refer to the illustration of a 2 story house w/ lap siding plans, (complete set of plans at the test
center), What are the lengths of the second floor trusses? - Answers 30 feet 6 inches and 13 feet 5
inches.
Refer tot the illustration of a 2 story house w/ lap siding plans, (complete set of plans at the test
center), what is the height of the foyer in inches? - Answers inches.
A ____________ is a system component that receives the inputs from automatic and manual fire
alarm devices and may be capable of supplying power to the detection devices and transponders or
off-premises transmitters. - Answers Fire Alarm Control Unit.
On graded sites, the top of any exterior foundation shall extend above the elevation of: - Answers The
street gutter at point of discharge.
What is the thickness of a footing for a single story frame residence? - Answers 6 inches.
Which of the following is the most important when deciding the depth of a footing? - Answers Depth
of the frost line.
Refer tot the illustration of a 2 story house w/ lap siding plans, (available at the testing center) How
many acres is the site for the house plan? - Answers 1/3 acre.
Which of the following can be used as backfill outside a foundation without being compacted? -
Answers Controlled low strength material.
For soils classified as sandy gravel, foundation pressure shall not exceed how many PSI? - Answers
3000 Pounds per Square Foot.
Which of the following shall not be assumed to have a load bearing capacity for foundations? -
Answers Organic Silt
The soil report states that the soil is sandy-gravel. What is the soil's load-bearing value? - Answers
3,000 PSF
According to code, what is the minimum required width of a footing in soil rated at 2000 PSF for a
single story building with 8 inch thick masonry walls? - Answers 12 inches
What is the minimum footing width of a one story light-frame construction building? - Answers 12
inches
Which of the following would cause crazing (superficial cracking) on the surface of concrete? -
Answers Early drying due to late curing or excessive water on surface.
Refer to the illustration of a 2 story house w/ lap siding plans, (complete set of plans at the test
center), How many cubic yards of concrete is needed for the floor and garage slabs less the fireplace
area? - Answers 23 cubic yards.
According to code, the minimum thickness of a concrete slab that is supported directly on the ground
shall be ___________ inches. - Answers 3.5
According to the code, plain concrete for basement walls and foundations shall be what minimum
compressive strength (psi)? - Answers 2500 psi
the frost line is 24 inches below the surface. What is the required depth of a footing? - Answers Below
the frost line.
A lot shall be graded to drain surface water away from foundation walls for a minimum of
___________ feet. - Answers 10
, What is the minimum overlap of a vapor barrier in an unvented crawl space. - Answers 6 inches
The minimum dept of footings below the undisturbed ground surface shall be_______. - Answers 12
inches
According to code, footings shall be stepped when? - Answers If the ground surface slopes more than
on unit vertical to ten units horizontal or where necessary to change the top footing surface elevation.
What is the minimum concrete psi that is required for basement walls or slabs not exposed to
weather? - Answers 2500 psi
Refer to the illustration of a 2 story house w/ lap siddng plans, (complete set of plans at the test
center), How many cubic yards of concrete would be required for the footer only? - Answers 10 to 12
cubic yards.
In conventional light-frame construction on soil with a load bearing value of 2,000 psi for a one story
building with 8 inch hollow concrete masonry walls, what is the minimum thickness of the spread
footing? - Answers 6 inches
Concrete Spread footing projections shall be at least ___________ and shall not exceed the thickness
of the footings. - Answers 2 inches
A concrete slab-on-ground cast monolithically with the footing placement at the footing top and
bottom? - Answers 1 number 5 of two number 4 bars in the middle third of the footing.
What is the minimum footing width of a 2 story light frame construction building with a soil bearing
capacity of 2000 PSF? - Answers 12 inches
According to code, foundation plates or sills shall be anchored tothe foundation with bolts spaced not
more than _________ inches apart? - Answers 72 inches
You are finishing a concrete surface, defects of the finished product such as crazing, dusting and
spalling are caused by? - Answers Overworking the concrete surface.
Floating adn troweling concrete too early in the curing process can cause? - Answers Water to rise
and weaken concrete surface.
How close can your string line be to the cinder block wall you are building? - Answers 1/16 inch
Wall ties should be placed how far from the edge of a masonry unit? - Answers 1/2 inch
What is the maximum vertical distance allowed between headers when building multi-wythe masonry
walls? - Answers 24 inches
What is the ideal size of head and bed joints in masonry construction? - Answers 3/8 inch
What is the minimum depth of a hearth in front of a masonry fireplace? - Answers 16 inches
What is the required minimum diameter of bolts used to anchor a roof structure to a masonry wall? -
Answers 1/2 inch
How high above the paved surface does the weep screed need to be? - Answers 2 inches
Weep screeds shall be a minimum of ___________ corrosion resistant weep screed or plastic weep
screed. - Answers 0.019 inch
Which type of hydrated lime is best to use in mortar for heavy bearing? - Answers Type S
What should be added to Portland cement to create mortar? - Answers Sand, lime and water.
What is added to mortar to increase is bonding abilities? - Answers Add hydrated lime
Three types of masonry ties are__________ - Answers Rectangular, Corrugated, and Z.
on a double wythe masonry wall with a 2 inch cavity, what is the required spacing of reinforcing metal
ties? - Answers 4 1/2 square feet
ties for veneer shall be spaced no greater than - Answers 24 inches on center.
Panel wall framing track shall have a minimum flange width of ________? - Answers 1-1/4 inch
What is the minimum size screw for the attaching gypsum board to metal studs? - Answers #6
Engineered structural wood product finished on 4 sides is known as? - Answers Premium Glulam
Beam
Rectangular shap having 2 sides cut into the edge of a board is known as___________? - Answers
Rabbet
What is the spacing required if using 1-1/4 inch screws to hang drywall on studs that are 24 inches on
center? - Answers 12 inches.
If you peel of siding and the wood is dark brown and crumbly, what is the probable cause? - Answers
Dry rot
Refer to the illustration of a story house W/ lap siding plans, (complete set of plans at the test center),
what is the height from the first floor to the landing? - Answers 61 1/2 inches
Concerning exterior sheathing, how far above grade should it extend? - Answers 6 inches
Which of the following wood is most resistant to termites? - Answers Redwood
