KB2 GENERAL CONTRACTOR LICENSE EXAM QUESTIONS
AND ANSWERS || LATEST UPDATE 2025/2026|| A GRADED
At what stage of the construction process would the builder cut out the
sole plate in a door opening? - CORRECT ANSWER after the wall has
been erected and braced
When wide square edge boards are being used for board and batten
siding, how should the batten strips be nailed ? - CORRECT ANSWER
to only one siding board
According to the code, the minimum allowable height of a guardrail at a
restaurant deck (or any commercial building) is _____ inches above the
finished floor height of the deck or balcony. - CORRECT ANSWER 42
If the blueprint does not disclose an exterior doors rough opening, then
the standard practice would be to frame the width _____ oversize. -
CORRECT ANSWER 2 inches
How are resilient channels used in drywall application? - CORRECT
ANSWER to decrease sound transmission in walls and partitions
What screws are used to attach steel studs to the top and bottom steel
track? - CORRECT ANSWER pan head, type S. It attaches stud to
runner up to 14-ga
,In single family dwelling sleeping rooms, the minimum net clear
opening width of windows, which are required for emergency egress or
rescue, is _____ inches. - CORRECT ANSWER 20
According to the code what is the minimum slope on which asphalt strip
shingles may be installed? - CORRECT ANSWER 2:12
According to Code the MAXIMUM diameter of a hole that may be
bored in a 2 by 10 joist is _____ inches. - CORRECT ANSWER 3
According to the Code, notches allowed in the top or bottom of joists
shall not exceed what fraction of the depth of the joist? - CORRECT
ANSWER 1/6
While trenching and excavating, OSHA requires at least _____ feet of
clear unobstructed distance from the trenches edge to the toe or edge of
the dirt or spoils pile. - CORRECT ANSWER 2 feet
What is the actual size of a 2 x 4 surfaced dry piece of framing lumber? -
CORRECT ANSWER 1-1/2 by 3-1/2
What is the minimum height of a guardrail on a residential deck ? -
CORRECT ANSWER 36 inches
,A minimum tread run for stairways (other than spiral stairs) in single
family dwellings having an occupant load of less than 10 is _____
inches. - CORRECT ANSWER 10
Dampening of the subgrade or the wood concrete forms prior to the
placement of concrete will: - CORRECT ANSWER prevent rapid
extraction of the mixing water from the concrete
Notches on the ends of joists shall not exceed _____ percent of the joist
depth. - CORRECT ANSWER 25 (1/4th)
According to code, asphalt shingles installed on roof with a slope of 4:12
or greater require an underlayment of: - CORRECT ANSWER one
layer #15 non-perforated felt
How much clearance is the wood framing required to have where a
masonry chimney passes through the roof opening? - CORRECT
ANSWER 2 inches
Asphalt shingles installed in warmer climates with a slope of 4 in 12 or
more should have a minimum underlayment of: - CORRECT
ANSWER 1 layer of # 15
When should concrete curing procedures start? - CORRECT ANSWER
As soon as possible after finishing.
, A kind of molding installed on the vertical wall used to accept aluminum
soffit panels is: - CORRECT ANSWER "F" Channel
A concrete slab should be bull floated as soon as possible after: -
CORRECT ANSWER screeding
According to OSHA, powered concrete trowels that are manually guided
shall be equipped with: - CORRECT ANSWER a hand release shut off
switch
When workers are required to enter a trench, shoring is required if the
trench is what minimum depth? - CORRECT ANSWER 5 feet
The minimum distance that end joints shall be offset in double top plates
is _____ inches. - CORRECT ANSWER 24
The minimum overlap of vertical joints of felt or paper, which is applied
to exterior walls, as a weather resistant barrier, is _____ inches. -
CORRECT ANSWER Not less than 6
How do you calculate cubic yards ? - CORRECT ANSWER L x W x H
=
then divide by 27 = Cubic Yards
What size screw should be used to attach steel sheathing to a metal
structure? - CORRECT ANSWER Self tapping #8
AND ANSWERS || LATEST UPDATE 2025/2026|| A GRADED
At what stage of the construction process would the builder cut out the
sole plate in a door opening? - CORRECT ANSWER after the wall has
been erected and braced
When wide square edge boards are being used for board and batten
siding, how should the batten strips be nailed ? - CORRECT ANSWER
to only one siding board
According to the code, the minimum allowable height of a guardrail at a
restaurant deck (or any commercial building) is _____ inches above the
finished floor height of the deck or balcony. - CORRECT ANSWER 42
If the blueprint does not disclose an exterior doors rough opening, then
the standard practice would be to frame the width _____ oversize. -
CORRECT ANSWER 2 inches
How are resilient channels used in drywall application? - CORRECT
ANSWER to decrease sound transmission in walls and partitions
What screws are used to attach steel studs to the top and bottom steel
track? - CORRECT ANSWER pan head, type S. It attaches stud to
runner up to 14-ga
,In single family dwelling sleeping rooms, the minimum net clear
opening width of windows, which are required for emergency egress or
rescue, is _____ inches. - CORRECT ANSWER 20
According to the code what is the minimum slope on which asphalt strip
shingles may be installed? - CORRECT ANSWER 2:12
According to Code the MAXIMUM diameter of a hole that may be
bored in a 2 by 10 joist is _____ inches. - CORRECT ANSWER 3
According to the Code, notches allowed in the top or bottom of joists
shall not exceed what fraction of the depth of the joist? - CORRECT
ANSWER 1/6
While trenching and excavating, OSHA requires at least _____ feet of
clear unobstructed distance from the trenches edge to the toe or edge of
the dirt or spoils pile. - CORRECT ANSWER 2 feet
What is the actual size of a 2 x 4 surfaced dry piece of framing lumber? -
CORRECT ANSWER 1-1/2 by 3-1/2
What is the minimum height of a guardrail on a residential deck ? -
CORRECT ANSWER 36 inches
,A minimum tread run for stairways (other than spiral stairs) in single
family dwellings having an occupant load of less than 10 is _____
inches. - CORRECT ANSWER 10
Dampening of the subgrade or the wood concrete forms prior to the
placement of concrete will: - CORRECT ANSWER prevent rapid
extraction of the mixing water from the concrete
Notches on the ends of joists shall not exceed _____ percent of the joist
depth. - CORRECT ANSWER 25 (1/4th)
According to code, asphalt shingles installed on roof with a slope of 4:12
or greater require an underlayment of: - CORRECT ANSWER one
layer #15 non-perforated felt
How much clearance is the wood framing required to have where a
masonry chimney passes through the roof opening? - CORRECT
ANSWER 2 inches
Asphalt shingles installed in warmer climates with a slope of 4 in 12 or
more should have a minimum underlayment of: - CORRECT
ANSWER 1 layer of # 15
When should concrete curing procedures start? - CORRECT ANSWER
As soon as possible after finishing.
, A kind of molding installed on the vertical wall used to accept aluminum
soffit panels is: - CORRECT ANSWER "F" Channel
A concrete slab should be bull floated as soon as possible after: -
CORRECT ANSWER screeding
According to OSHA, powered concrete trowels that are manually guided
shall be equipped with: - CORRECT ANSWER a hand release shut off
switch
When workers are required to enter a trench, shoring is required if the
trench is what minimum depth? - CORRECT ANSWER 5 feet
The minimum distance that end joints shall be offset in double top plates
is _____ inches. - CORRECT ANSWER 24
The minimum overlap of vertical joints of felt or paper, which is applied
to exterior walls, as a weather resistant barrier, is _____ inches. -
CORRECT ANSWER Not less than 6
How do you calculate cubic yards ? - CORRECT ANSWER L x W x H
=
then divide by 27 = Cubic Yards
What size screw should be used to attach steel sheathing to a metal
structure? - CORRECT ANSWER Self tapping #8
