Az ROC Trade Exam B-3 License UPDATED Exam
Questions and CORRECT Answers
Nails used for installing Hardboard panel siding vertically must accommodate the sheathing and
penetrate the framing a minimum of how much? - 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? - 4 feet
Above the handrail and below the head, what is the minimum clear opening on a stairwell? -
36 inches
When installing vinyl siding, how much overlap should you allow for thermal expansion? -
1 inch
What is the first step you should take when applying specialty finishes? - Read the
manufacturers use instructions.
What is the appropriate gap between gypsum board and a tub surround? - 1/4 inch
Sprayed fire resistant materials are identified by ____________ and thickness required for a
given rating. - Density.
What is the most important factor in determining the "R" value of blown in insulation? -
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? - 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? - 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. - Fire Alarm Control Unit.
On graded sites, the top of any exterior foundation shall extend above the elevation of: -
The street gutter at point of discharge.
What is the thickness of a footing for a single story frame residence? - 6 inches.
Which of the following is the most important when deciding the depth of a footing? -
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? - 1/3 acre.
Which of the following can be used as backfill outside a foundation without being compacted? -
Controlled low strength material.
For soils classified as sandy gravel, foundation pressure shall not exceed how many PSI? -
3000 Pounds per Square Foot.
, Which of the following shall not be assumed to have a load bearing capacity for foundations? -
Organic Silt
The soil report states that the soil is sandy-gravel. What is the soil's load-bearing value? -
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? - 12 inches
What is the minimum footing width of a one story light-frame construction building? - 12
inches
Which of the following would cause crazing (superficial cracking) on the surface of concrete? -
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? - 23 cubic yards.
According to code, the minimum thickness of a concrete slab that is supported directly on the
ground shall be ___________ inches. - 3.5
According to the code, plain concrete for basement walls and foundations shall be what
minimum compressive strength (psi)? - 2500 psi
the frost line is 24 inches below the surface. What is the required depth of a footing? -
Below the frost line.
Questions and CORRECT Answers
Nails used for installing Hardboard panel siding vertically must accommodate the sheathing and
penetrate the framing a minimum of how much? - 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? - 4 feet
Above the handrail and below the head, what is the minimum clear opening on a stairwell? -
36 inches
When installing vinyl siding, how much overlap should you allow for thermal expansion? -
1 inch
What is the first step you should take when applying specialty finishes? - Read the
manufacturers use instructions.
What is the appropriate gap between gypsum board and a tub surround? - 1/4 inch
Sprayed fire resistant materials are identified by ____________ and thickness required for a
given rating. - Density.
What is the most important factor in determining the "R" value of blown in insulation? -
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? - 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? - 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. - Fire Alarm Control Unit.
On graded sites, the top of any exterior foundation shall extend above the elevation of: -
The street gutter at point of discharge.
What is the thickness of a footing for a single story frame residence? - 6 inches.
Which of the following is the most important when deciding the depth of a footing? -
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? - 1/3 acre.
Which of the following can be used as backfill outside a foundation without being compacted? -
Controlled low strength material.
For soils classified as sandy gravel, foundation pressure shall not exceed how many PSI? -
3000 Pounds per Square Foot.
, Which of the following shall not be assumed to have a load bearing capacity for foundations? -
Organic Silt
The soil report states that the soil is sandy-gravel. What is the soil's load-bearing value? -
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? - 12 inches
What is the minimum footing width of a one story light-frame construction building? - 12
inches
Which of the following would cause crazing (superficial cracking) on the surface of concrete? -
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? - 23 cubic yards.
According to code, the minimum thickness of a concrete slab that is supported directly on the
ground shall be ___________ inches. - 3.5
According to the code, plain concrete for basement walls and foundations shall be what
minimum compressive strength (psi)? - 2500 psi
the frost line is 24 inches below the surface. What is the required depth of a footing? -
Below the frost line.
