CSLB Class B General Contractor's License - Building's Exam With Correct Questions And Answers: Framing & Structural

CSLB Class B General Contractor's
License - Building's Exam With
Correct Questions And Answers:
Framing & Structural

6 inches - Correct Answer ✔✔ - How much clearance is needed between the ground and wood siding?
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4X10d nails - Correct Answer ✔✔ - When nailing a continuous header to the studs, best practice is to
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use:
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Moisture content, Grade, Species - Correct Answer ✔✔ - Graded lumber is stamped with information
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about the lumber. What is included?
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In load bearing walls with holes exceeding 40% of the stud depth. - Correct Answer ✔✔ - When are
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studs doubled?
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5/8 inch - Correct Answer ✔✔ - A solid plywood roof deck at 3/12 pitch or greater, receiving asphalt
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shingles and having rafters laid out 24 inches on center, should have a minimum plywood sheathing
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thickness of ______.
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OSB with edge nailing 4" o.c. and field 6 "o.c. - Correct Answer ✔✔ - Specific information about shear
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walls, such a type of sheathing and nailing, can usually be found on the building plans. Abbreviations
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such as "6W4" are common, which would mean:
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S-GRN: "Surfaced Green" Not dried, moisture content over 19%.S-DRY: "Surfaced Dry" Air dried to a
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moisture content less than 19%. KD: "Kiln Dry" Dried in a heated kiln to a moisture content less than
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19%.MC 15: "Moisture Content 15%" Dried to a moisture content of 15% or less.HT: "Heat Treated"
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Heated to at least 133° Fahrenheit for 30 minutes at the board's core to kill any insects present in the
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wood. - Correct Answer ✔✔ - Graded lumber is marked with an indication of moisture content; which
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is the driest designation?
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To shed water away from the structure at roof to wall transitions
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(Step flashing are interwoven between each course of shingles and protect the transition from water
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intrusion by creating a water shed aka shingle effect.
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,Leave Feedback) - Correct Answer ✔✔ - What is the purpose of a step flashing?
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A) Will always be parallel - Correct Answer ✔✔ - Bracing lines:
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A) Will always be parallel
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B) Should intersect at 90˚
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C) Always run in the same direction
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D) Can be added at any time
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D) Weave shingles under the lower end of the base flashing and over the upper portion of the base
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flashing
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(In re-roof overlays, many roofers will conceal the base flashing under the shingles and apply mastic at
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the transition. While this method is allowable for overlays, it is not recommended due to the inherent
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likelihood of moisture influence under the shingles at these locations.) - Correct Answer ✔✔ - Proper
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installation of roof pipe and vent penetration base flashing should consist of:
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A) Apply shingles so as to completely conceal base flashing
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B) Apply shingles under the base flashing and seal perimeter of base flashing with roof cement
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C) Seal pipe/vent penetration with roof cement
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D) Weave shingles under the lower end of the base flashing and over the upper portion of the base
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flashing
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A) Structural light framing No: 1 - Correct Answer ✔✔ - Grade designations indicate the recommended
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use of lumber. Which grade would you chose for building trusses?
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A) Structural light framing No: 1
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B) Structural light framing No: 3
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C) Light framing: Construction
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D) Light framing: Standard
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, 18" - Correct Answer ✔✔ - In crawlspace, if the floor is built out of non-pressure treated wood, how
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high is the floor joist from the soil?
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A) Blocking is required at the beginning of any overhang - Correct Answer ✔✔ - When building a deck,
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it may be necessary to use blocking between joists.
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A) Blocking is required at the beginning of any overhang
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B) Blocking is required every 10 feet
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C) Blocking is required if joists are 24" o.c. or more
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D) Blocking is required if joists are 8"x or larger
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24" o. c. - Correct Answer ✔✔ - What is the maximum spacing of 2 x 4 inch studs on a 1 story house?
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B) Not be notched - Correct Answer ✔✔ - Engineered floor trusses and I-Joists should:
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A) Always be kept in low humidity
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B) Not be notched
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C) Purchased in batches
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D) Always be approved by an engineer
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D) 16d 16" o.c.
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(According to the California Residential Code, 16d common nails at 16" o.c. face nail or 10d box nails at
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12" o.c. face nail.) - Correct Answer ✔✔ - Double top plates are best nailed together with:
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A) 10d 24" o.c
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B) 16d 24" o.c
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C) 10d 16" o.c
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D) 16d 16" o.c.
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A) Between floors - Correct Answer ✔✔ - Hold-downs are usually set into the foundation or pad.
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Where else might you need to install them?
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