Az ROC Trade Exam B-3 License UPDATED Exam
Complete Questions and Guide Answers
100% Verified Graded A+
1. Nails used for installing Hardboard panel siding vertically must accommodate the sheathing and
penetrate the framing a minimum of how much?
Answer. 1-1/2inches
2. When framing openings in floors with a header and trimmer joists, what maximum
header joist span is allowed with a single member header?
Answer. 4feet
3. Above the handrail and below the head, what is the minimum clear opening on a stairwell?
Answer. 36 inches
4. When installing vinyl siding, how much overlap should you allow for thermal expansion?
Answer. 1inch
5. What is the first step you should take when applying specialty finishes?
Answer. Read
the manufacturers use instructions.
,6. What is the appropriate gap between gypsum board and a tub surround?
Answer. 1/4 inch
7. Sprayed fire resistant materials are identified by and thickness
required for a given rating.
Answer. Density.
8. What is the most important factor in determining the "R" value of blown in insulation?
Answer. Density.
9. 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?
Answer. 30
feet 6 inches and 13 feet 5 inches.
10. 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?
Answer. inches.
11. 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.
,Answer. Fire Alarm Control
Unit.
12. On graded sites, the top of any exterior foundation shall extend above the elevation of
Answer. The street gutter at point of discharge.
13. What is the thickness of a footing for a single story frame residence?
Answer. 6 inches.
14. Which of the following is the most important when deciding the depth of a footing?
Answer. Depth of the frost line.
15. 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?
Answer. 1/3 acre.
16. Which of the following can be used as backfill outside a foundation without being compacted?
Answer. Controlled low strength material.
17. For soils classified as sandy gravel, foundation pressure shall not exceed how many PSI?
Answer. 3000 Pounds per Square Foot.
18. Which of the following shall not be assumed to have a load bearing capacity for foundations?
Answer. Organic Silt
, 19. The soil report states that the soil is sandy-gravel. What is the soil'sload-bear- ing value?
Answer. 3,000 PSF
20. 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?
Answer. 12
inches
21. What is the minimum footing width of a one story light-frame construction building?
Answer. 12 inches
22. Which of the following would cause crazing (superficial cracking) on the surface of concrete?
Answer. Early drying due to late curing or excessive water on surface.
23. 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?
Answer. 23 cubic yards.
24. According to code, the minimum thickness of a concrete slab that is support- ed directly on the
ground shall be inches.
Answer. 3.5
25. According to the code, plain concrete for basement walls and foundations shall be what
Complete Questions and Guide Answers
100% Verified Graded A+
1. Nails used for installing Hardboard panel siding vertically must accommodate the sheathing and
penetrate the framing a minimum of how much?
Answer. 1-1/2inches
2. When framing openings in floors with a header and trimmer joists, what maximum
header joist span is allowed with a single member header?
Answer. 4feet
3. Above the handrail and below the head, what is the minimum clear opening on a stairwell?
Answer. 36 inches
4. When installing vinyl siding, how much overlap should you allow for thermal expansion?
Answer. 1inch
5. What is the first step you should take when applying specialty finishes?
Answer. Read
the manufacturers use instructions.
,6. What is the appropriate gap between gypsum board and a tub surround?
Answer. 1/4 inch
7. Sprayed fire resistant materials are identified by and thickness
required for a given rating.
Answer. Density.
8. What is the most important factor in determining the "R" value of blown in insulation?
Answer. Density.
9. 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?
Answer. 30
feet 6 inches and 13 feet 5 inches.
10. 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?
Answer. inches.
11. 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.
,Answer. Fire Alarm Control
Unit.
12. On graded sites, the top of any exterior foundation shall extend above the elevation of
Answer. The street gutter at point of discharge.
13. What is the thickness of a footing for a single story frame residence?
Answer. 6 inches.
14. Which of the following is the most important when deciding the depth of a footing?
Answer. Depth of the frost line.
15. 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?
Answer. 1/3 acre.
16. Which of the following can be used as backfill outside a foundation without being compacted?
Answer. Controlled low strength material.
17. For soils classified as sandy gravel, foundation pressure shall not exceed how many PSI?
Answer. 3000 Pounds per Square Foot.
18. Which of the following shall not be assumed to have a load bearing capacity for foundations?
Answer. Organic Silt
, 19. The soil report states that the soil is sandy-gravel. What is the soil'sload-bear- ing value?
Answer. 3,000 PSF
20. 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?
Answer. 12
inches
21. What is the minimum footing width of a one story light-frame construction building?
Answer. 12 inches
22. Which of the following would cause crazing (superficial cracking) on the surface of concrete?
Answer. Early drying due to late curing or excessive water on surface.
23. 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?
Answer. 23 cubic yards.
24. According to code, the minimum thickness of a concrete slab that is support- ed directly on the
ground shall be inches.
Answer. 3.5
25. According to the code, plain concrete for basement walls and foundations shall be what
