CSLB CLASS B GENERAL CONTRACTOR'S LICENSE -
BUILDING'S EXAM: FRAMING & STRUCTURAL
QUESTIONS AND ANSWERS 100% PASS
6 inches - CORRECT ANSWER - How much clearance is needed between the ground and wood siding?
4X10d nails - CORRECT ANSWER - When nailing a continuous header to the studs, best practice is to
use:
Moisture content, Grade, Species - CORRECT ANSWER -
Graded lumber is stamped with information about the lumber. What is included?
In load bearing walls with holes exceeding 40% of the stud depth. - CORRECT
ANSWER - When are studs doubled?
5/8 inch - CORRECT ANSWER -
A solid plywood roof deck at 3/12 pitch or greater, receiving asphalt shingles and having rafters laid o
ut 24 inches on center, should have a minimum plywood sheathing thickness of .
OSB with edge nailing 4" o.c. and field 6 "o.c. - CORRECT ANSWER -
Specific information about shear walls, such a type of sheathing and nailing, can usually be found on t
he building plans. Abbreviations such as "6W4" are common, which would mean:
S-GRN: "Surfaced Green" Not dried, moisture content over 19%.S-
DRY: "Surfaced Dry" Air dried to a moisture content less than 19%. KD: "Kiln Dry" Dried in a heated
kiln to a moisture content less than 19%.MC 15: "Moisture Content 15%" Dried to a moisture content
of 15% or less.HT: "Heat Treated" Heated to at least 133° Fahrenheit for 30 minutes at the board's cor
e to kill any insects present in the wood. - CORRECT ANSWER -
Graded lumber is marked with an indication of moisture content; which is the driest designation?
To shed water away from the structure at roof to wall transitions
(Step flashing are interwoven between each course of shingles and protect the transition from water int
rusion by creating a water shed aka shingle effect.
Next Question
,Leave Feedback) - CORRECT ANSWER - What is the purpose of a step flashing?
A) Will always be parallel - CORRECT ANSWER - Bracing lines:
A) Will always be parallel
B) Should intersect at 90˚
C) Always run in the same direction
D) Can be added at any time
D) Weave shingles under the lower end of the base flashing and over the upper portion of the base flas
hing
(In re-
roof overlays, many roofers will conceal the base flashing under the shingles and apply mastic at the tr
ansition. While this method is allowable for overlays, it is not recommended due to the inherent likelih
ood of moisture influence under the shingles at these locations.) - CORRECT ANSWER -
Proper installation of roof pipe and vent penetration base flashing should consist of:
A) Apply shingles so as to completely conceal base flashing
B) Apply shingles under the base flashing and seal perimeter of base flashing with roof cement
C) Seal pipe/vent penetration with roof cement
D) Weave shingles under the lower end of the base flashing and over the upper portion of the base flas
hing
A) Structural light framing No: 1 - CORRECT ANSWER -
Grade designations indicate the recommended use of lumber. Which grade would you chose for buildin
g trusses?
A) Structural light framing No: 1
B) Structural light framing No: 3
C) Light framing: Construction
D) Light framing: Standard
, 18" - CORRECT ANSWER -In crawlspace, if the floor is built out of
non- pressure treated wood, how high is the floor joist from the soil?
A) Blocking is required at the beginning of any overhang - CORRECT
ANSWER - When building a deck, it may be necessary to use blocking
between joists.
A) Blocking is required at the beginning of any overhang
B) Blocking is required every 10 feet
C) Blocking is required if joists are 24" o.c. or more
D) Blocking is required if joists are 8"x or larger
24" o. c. - CORRECT ANSWER - What is the maximum spacing of 2 x 4 inch studs on a 1 story
house?
B) Not be notched - CORRECT ANSWER - Engineered floor trusses and I-Joists should:
A) Always be kept in low humidity
B) Not be notched
C) Purchased in batches
D) Always be approved by an engineer
D) 16d 16" o.c.
(According to the California Residential Code, 16d common nails at 16" o.c. face nail or 10d box nails
at 12" o.c. face nail.) - CORRECT ANSWER -Double top plates are best nailed together with:
A) 10d 24" o.c
B) 16d 24" o.c
C) 10d 16" o.c
D) 16d 16" o.c.
BUILDING'S EXAM: FRAMING & STRUCTURAL
QUESTIONS AND ANSWERS 100% PASS
6 inches - CORRECT ANSWER - How much clearance is needed between the ground and wood siding?
4X10d nails - CORRECT ANSWER - When nailing a continuous header to the studs, best practice is to
use:
Moisture content, Grade, Species - CORRECT ANSWER -
Graded lumber is stamped with information about the lumber. What is included?
In load bearing walls with holes exceeding 40% of the stud depth. - CORRECT
ANSWER - When are studs doubled?
5/8 inch - CORRECT ANSWER -
A solid plywood roof deck at 3/12 pitch or greater, receiving asphalt shingles and having rafters laid o
ut 24 inches on center, should have a minimum plywood sheathing thickness of .
OSB with edge nailing 4" o.c. and field 6 "o.c. - CORRECT ANSWER -
Specific information about shear walls, such a type of sheathing and nailing, can usually be found on t
he building plans. Abbreviations such as "6W4" are common, which would mean:
S-GRN: "Surfaced Green" Not dried, moisture content over 19%.S-
DRY: "Surfaced Dry" Air dried to a moisture content less than 19%. KD: "Kiln Dry" Dried in a heated
kiln to a moisture content less than 19%.MC 15: "Moisture Content 15%" Dried to a moisture content
of 15% or less.HT: "Heat Treated" Heated to at least 133° Fahrenheit for 30 minutes at the board's cor
e to kill any insects present in the wood. - CORRECT ANSWER -
Graded lumber is marked with an indication of moisture content; which is the driest designation?
To shed water away from the structure at roof to wall transitions
(Step flashing are interwoven between each course of shingles and protect the transition from water int
rusion by creating a water shed aka shingle effect.
Next Question
,Leave Feedback) - CORRECT ANSWER - What is the purpose of a step flashing?
A) Will always be parallel - CORRECT ANSWER - Bracing lines:
A) Will always be parallel
B) Should intersect at 90˚
C) Always run in the same direction
D) Can be added at any time
D) Weave shingles under the lower end of the base flashing and over the upper portion of the base flas
hing
(In re-
roof overlays, many roofers will conceal the base flashing under the shingles and apply mastic at the tr
ansition. While this method is allowable for overlays, it is not recommended due to the inherent likelih
ood of moisture influence under the shingles at these locations.) - CORRECT ANSWER -
Proper installation of roof pipe and vent penetration base flashing should consist of:
A) Apply shingles so as to completely conceal base flashing
B) Apply shingles under the base flashing and seal perimeter of base flashing with roof cement
C) Seal pipe/vent penetration with roof cement
D) Weave shingles under the lower end of the base flashing and over the upper portion of the base flas
hing
A) Structural light framing No: 1 - CORRECT ANSWER -
Grade designations indicate the recommended use of lumber. Which grade would you chose for buildin
g trusses?
A) Structural light framing No: 1
B) Structural light framing No: 3
C) Light framing: Construction
D) Light framing: Standard
, 18" - CORRECT ANSWER -In crawlspace, if the floor is built out of
non- pressure treated wood, how high is the floor joist from the soil?
A) Blocking is required at the beginning of any overhang - CORRECT
ANSWER - When building a deck, it may be necessary to use blocking
between joists.
A) Blocking is required at the beginning of any overhang
B) Blocking is required every 10 feet
C) Blocking is required if joists are 24" o.c. or more
D) Blocking is required if joists are 8"x or larger
24" o. c. - CORRECT ANSWER - What is the maximum spacing of 2 x 4 inch studs on a 1 story
house?
B) Not be notched - CORRECT ANSWER - Engineered floor trusses and I-Joists should:
A) Always be kept in low humidity
B) Not be notched
C) Purchased in batches
D) Always be approved by an engineer
D) 16d 16" o.c.
(According to the California Residential Code, 16d common nails at 16" o.c. face nail or 10d box nails
at 12" o.c. face nail.) - CORRECT ANSWER -Double top plates are best nailed together with:
A) 10d 24" o.c
B) 16d 24" o.c
C) 10d 16" o.c
D) 16d 16" o.c.
