Massachusetts Construction Supervisor License (CSL) Practice Exam
Questions and Correct Answers (Plus Latest 2025/2026 Update
A single-family dwelling unit is proposed in climate zone 7. What is the minimum R-value for a
floor over a unconditioned garage?
a. R-19
b. R-13
c. R-11
d. R-38, or insulation minimum to fill the framing cavity, R-19 minimum
In a Group E middle school, an assembly area associated with the Group E shall be separated at
what minimum level from the remainder of the school building?
a. no separation is required (considered same occupancy)
b. 1-hour fire barrier
c. 2-hour fire barrier
d. 3-hour fire barrier
What minimum level of incidental use protection is required for an incinerator room located in
a manufacturing facility?
a. 1-hour fire partition only
b. automatic sprinkler system only
c. 1-hour fire barrier and an automatic
d. separation of two hours and an automatic sprinkler system
1 | Massachusetts Construction Supervisor License Exam
,What is the minimum required vertical distance between the upper floor and the roof to allow
the use of fire-retardant-treated wood in the roof construction of an eight-story Type IA
building?
a. 20 feet
b. 25 feet
c. there is no minimum distance required
d. FRT wood is never permitted in such a case
What is the maximum allowable building height in feet above grade plane for a non sprinklered
111B building housing a Group B occupancy?
a. 55
b. 65
c. 75
d. 85
The International Residential Code is applicable to townhouses a maximum of above grade
plane in height and provided with separate means of ________ egress.
a. 35 feet
b. 40 feet
c. three stories
d. four stories
A one-story Group A-3 gymnasium building of Type IIIA contruction may be considered under
the unlimited area provisions, provided the gymnasium floor is located a maximum of
_________ above or below grade level.
2 | Massachusetts Construction Supervisor License Exam
, a. 21 inches
b. 24 inches
c. 30 inches
d. 48 inches
In a Type 11B building housing a Group 1-2 occupancy, what is the minimum required rating for
an exterior nonbearing wall located with a fire separation distance of 8 feet?
a. 3 hours
b. 2 hours
c. 1 hour
d. 0 hours (no rating required)
Portions of a mezzanine need not be open to the room in which the mezzanine is located,
provided the enclosed space is limited in size to a maximum of _________ of the mezzanine
area.
a. 10 percent
b. 25 percent
c. 33 1/3 percent
d. 50 percent
The time period that a through-penetration firestop system limits the spread of fire through a
penetration when tested in accordance with ASTM E 814 or UL 1479 is _______________
considered
a. a fire protection rating
b. an F rating
c. a T rating
3 | Massachusetts Construction Supervisor License Exam
Questions and Correct Answers (Plus Latest 2025/2026 Update
A single-family dwelling unit is proposed in climate zone 7. What is the minimum R-value for a
floor over a unconditioned garage?
a. R-19
b. R-13
c. R-11
d. R-38, or insulation minimum to fill the framing cavity, R-19 minimum
In a Group E middle school, an assembly area associated with the Group E shall be separated at
what minimum level from the remainder of the school building?
a. no separation is required (considered same occupancy)
b. 1-hour fire barrier
c. 2-hour fire barrier
d. 3-hour fire barrier
What minimum level of incidental use protection is required for an incinerator room located in
a manufacturing facility?
a. 1-hour fire partition only
b. automatic sprinkler system only
c. 1-hour fire barrier and an automatic
d. separation of two hours and an automatic sprinkler system
1 | Massachusetts Construction Supervisor License Exam
,What is the minimum required vertical distance between the upper floor and the roof to allow
the use of fire-retardant-treated wood in the roof construction of an eight-story Type IA
building?
a. 20 feet
b. 25 feet
c. there is no minimum distance required
d. FRT wood is never permitted in such a case
What is the maximum allowable building height in feet above grade plane for a non sprinklered
111B building housing a Group B occupancy?
a. 55
b. 65
c. 75
d. 85
The International Residential Code is applicable to townhouses a maximum of above grade
plane in height and provided with separate means of ________ egress.
a. 35 feet
b. 40 feet
c. three stories
d. four stories
A one-story Group A-3 gymnasium building of Type IIIA contruction may be considered under
the unlimited area provisions, provided the gymnasium floor is located a maximum of
_________ above or below grade level.
2 | Massachusetts Construction Supervisor License Exam
, a. 21 inches
b. 24 inches
c. 30 inches
d. 48 inches
In a Type 11B building housing a Group 1-2 occupancy, what is the minimum required rating for
an exterior nonbearing wall located with a fire separation distance of 8 feet?
a. 3 hours
b. 2 hours
c. 1 hour
d. 0 hours (no rating required)
Portions of a mezzanine need not be open to the room in which the mezzanine is located,
provided the enclosed space is limited in size to a maximum of _________ of the mezzanine
area.
a. 10 percent
b. 25 percent
c. 33 1/3 percent
d. 50 percent
The time period that a through-penetration firestop system limits the spread of fire through a
penetration when tested in accordance with ASTM E 814 or UL 1479 is _______________
considered
a. a fire protection rating
b. an F rating
c. a T rating
3 | Massachusetts Construction Supervisor License Exam
