Mass CSL Unrestricted Exam Prep #2
Questions and Correct Answers (Latest
Update 2025-2026) Assured Success.
Headers in floor and ceiling opennings shall be doubled when the header span exceeds
- Correct answer4 feet
What is the maximum height above grade that a deck can be built with out a guardrail ?
- Correct answer30 inches
deck can guardrail ? Shiplap pine siding must have a minimum of inches of " clearance
between the siding and the earth ? - Correct answer6 "
On a concrete foundation , spruce sills must have a min of inches of clearance to the
earth ? - Correct answer8 "
Wood girders . Supporting a floor must be pressure treated if they are closer than " to
the ground ? - Correct answer12 "
What is the maximum amount of air foundations that the code allows ? - Correct
answer12 "
What is the maximum amount of air foundations that the code allows ? - Correct
answerNo less than 5 % and no more than 7 %
What is the minimum compressive strength of concrete after 28 days ? - Correct
answer2,500 PSI
The maximum permitted slope for the bottom surface of footings shall be ? - Correct
answer1:10 ( one vertical in ten units horizontal ) 10 % slope
How many bolts are required for a wood sill on a concrete foundation resting on 22
linear feet Eleven ( 11 ) feet of wall each way from the corner - Correct answer6 ,
they will most likely show you a drawing
,A contractor has installed anchor bolts imbedded 6 " in a concrete foundation The
imbedded depth is how many inches too short ? - Correct answer1 "
For an 8 - foot high plain masonry foundation wall with 4 feet of unbalanced fill , what is
the minimum thickness of the foundation wall ? The soil type is SW - Correct
answer6 inches
When emergency escape and rescue windows are required in a single family home ,
they shall have a sill height of not more than inches off the ground ? - Correct
answer44 inches
When working in a residential single family , the minimum clear height of the means of
egress door shall not less than and a clear width of - Correct answer78 " and 32
"
What is the minimum height of an emergency escape window ? - Correct
answer24 inches
What is the minimum width of an emergency escape window ? - Correct
answer20 inches
When is a handrail required on a set of stairs in a single family home ? - Correct
answer4 steps or more
In a single family home stairways shall not be less than 36 " in clear width at all points
above the permitted handrail height . Stairway widths shall not be less than inches
where a handrail is installed on one side and inches where handrails are provided on
both sides . - Correct answer31-1/2" and 27"
What is the maximum variation in riser height in multiple stairs ( not consecutive ) in a
flight of stairs ? - Correct answer3/8 "
What is the maximum variation in depth of adjacent treads or in the height of adjacent
risers ? - Correct answer3/8 "
What is the minimum headroom requirement in stairway for a 2 family residence
measured from the sloped plane adjoining the tread nosing or from the floor surface of
the landing or platform ? - Correct answer6 feet 8 inches
, What is the minimum clearance space between a handrail and a wall ? - Correct
answer1½ "
A single - family residence has a 8 foot 8 inch high , 8 inch thick , reinforced concrete
foundation The soil type is SM - SC . If the unbalanced backfill height is 8 feet , what
vertical reinforcement size and spacing will be required ? - Correct answer# 6 at
32 inches on center
If not using masonry veneer , how high above finished grade does the masonry
foundation wall need to be ? - Correct answer6 "
Drains shall be provided around all concrete and masonry foundations that retain earth
and enclose habitable or usable space Gravel or crushed stone drains shall extend at
least beyond the outside edge of the footing and beyond the outside edge of the footing
and inches above the top - Correct answer1 foot and 6 inches
Drain tiles used for foundation drainage shall be covered with at least how many inches
of washed gravel or crushed rock ? - Correct answer6 inches
What agency governs the mortar content in a 3 - inch steel support column ? -
Correct answerASTM A 53
A 45 x 60 crawl space with approved vapor barrier and cross ventilation shall be
required to have how much under floor ventilation ? - Correct answer1.8 sf
Where are vapor retarders in spaces of roof - ceiling assemblies required to be installed
? - Correct answerWarm in winter side
How large does the opening need to be for attic access located in a single family
home ? - Correct answer22 " x 30 "
What section would find information on permits ( i.e. when are they required , what is
exempt from a permit and application for a permit ? ) - Correct answerSection
R105
A permit is not required for the construction of a one story detached accessory when it
has a maximum floor area of square feet ? - Correct answer200
Any permit issued shall be deemed abandoned and invalid unless the work authorized
by it shall have been commenced within how many months ? - Correct answer6
months
Questions and Correct Answers (Latest
Update 2025-2026) Assured Success.
Headers in floor and ceiling opennings shall be doubled when the header span exceeds
- Correct answer4 feet
What is the maximum height above grade that a deck can be built with out a guardrail ?
- Correct answer30 inches
deck can guardrail ? Shiplap pine siding must have a minimum of inches of " clearance
between the siding and the earth ? - Correct answer6 "
On a concrete foundation , spruce sills must have a min of inches of clearance to the
earth ? - Correct answer8 "
Wood girders . Supporting a floor must be pressure treated if they are closer than " to
the ground ? - Correct answer12 "
What is the maximum amount of air foundations that the code allows ? - Correct
answer12 "
What is the maximum amount of air foundations that the code allows ? - Correct
answerNo less than 5 % and no more than 7 %
What is the minimum compressive strength of concrete after 28 days ? - Correct
answer2,500 PSI
The maximum permitted slope for the bottom surface of footings shall be ? - Correct
answer1:10 ( one vertical in ten units horizontal ) 10 % slope
How many bolts are required for a wood sill on a concrete foundation resting on 22
linear feet Eleven ( 11 ) feet of wall each way from the corner - Correct answer6 ,
they will most likely show you a drawing
,A contractor has installed anchor bolts imbedded 6 " in a concrete foundation The
imbedded depth is how many inches too short ? - Correct answer1 "
For an 8 - foot high plain masonry foundation wall with 4 feet of unbalanced fill , what is
the minimum thickness of the foundation wall ? The soil type is SW - Correct
answer6 inches
When emergency escape and rescue windows are required in a single family home ,
they shall have a sill height of not more than inches off the ground ? - Correct
answer44 inches
When working in a residential single family , the minimum clear height of the means of
egress door shall not less than and a clear width of - Correct answer78 " and 32
"
What is the minimum height of an emergency escape window ? - Correct
answer24 inches
What is the minimum width of an emergency escape window ? - Correct
answer20 inches
When is a handrail required on a set of stairs in a single family home ? - Correct
answer4 steps or more
In a single family home stairways shall not be less than 36 " in clear width at all points
above the permitted handrail height . Stairway widths shall not be less than inches
where a handrail is installed on one side and inches where handrails are provided on
both sides . - Correct answer31-1/2" and 27"
What is the maximum variation in riser height in multiple stairs ( not consecutive ) in a
flight of stairs ? - Correct answer3/8 "
What is the maximum variation in depth of adjacent treads or in the height of adjacent
risers ? - Correct answer3/8 "
What is the minimum headroom requirement in stairway for a 2 family residence
measured from the sloped plane adjoining the tread nosing or from the floor surface of
the landing or platform ? - Correct answer6 feet 8 inches
, What is the minimum clearance space between a handrail and a wall ? - Correct
answer1½ "
A single - family residence has a 8 foot 8 inch high , 8 inch thick , reinforced concrete
foundation The soil type is SM - SC . If the unbalanced backfill height is 8 feet , what
vertical reinforcement size and spacing will be required ? - Correct answer# 6 at
32 inches on center
If not using masonry veneer , how high above finished grade does the masonry
foundation wall need to be ? - Correct answer6 "
Drains shall be provided around all concrete and masonry foundations that retain earth
and enclose habitable or usable space Gravel or crushed stone drains shall extend at
least beyond the outside edge of the footing and beyond the outside edge of the footing
and inches above the top - Correct answer1 foot and 6 inches
Drain tiles used for foundation drainage shall be covered with at least how many inches
of washed gravel or crushed rock ? - Correct answer6 inches
What agency governs the mortar content in a 3 - inch steel support column ? -
Correct answerASTM A 53
A 45 x 60 crawl space with approved vapor barrier and cross ventilation shall be
required to have how much under floor ventilation ? - Correct answer1.8 sf
Where are vapor retarders in spaces of roof - ceiling assemblies required to be installed
? - Correct answerWarm in winter side
How large does the opening need to be for attic access located in a single family
home ? - Correct answer22 " x 30 "
What section would find information on permits ( i.e. when are they required , what is
exempt from a permit and application for a permit ? ) - Correct answerSection
R105
A permit is not required for the construction of a one story detached accessory when it
has a maximum floor area of square feet ? - Correct answer200
Any permit issued shall be deemed abandoned and invalid unless the work authorized
by it shall have been commenced within how many months ? - Correct answer6
months
