LATEST COMMERCIAL BUILDING
INSPECTOR (B2) CERTIFICATION EXAM
OFFERED BY INTERNATIONAL CODE
COUNCIL (ICC) | Q&A WITH RATIONALES
1. A new 30,000 sq ft office building (Group B) is of
Type IIB construction and is not sprinklered. What is
the maximum allowable number of stories for this
building?
A) 2 stories
B) 3 stories
C) 4 stories
D) 5 stories
Correct answer: A
Rationale: IBC Table 504.3 limits an unsprinklered
Type IIB Group B building to 2 stories.
2. A 30,000 sq ft retail store (Group M) is of Type IIB
construction and is not sprinklered. What is the
maximum allowable area per story?
A) 9,000 sq ft
B) 12,000 sq ft
,C) 18,000 sq ft
D) 24,000 sq ft
Correct answer: C
Rationale: IBC Table 506.2 allows 18,000 sq ft for
unsprinklered Type IIB Group M.
3. A restaurant (Group A-2) has a fire area of 6,000 sq
ft and is not sprinklered. According to IBC Section
903.2.1.2, is an automatic sprinkler system required?
A) No, sprinklers are only required for fire areas over
5,000 sq ft in A-2 occupancies
B) Yes, sprinklers are required for A-2 fire areas over
5,000 sq ft
C) No, sprinklers are required only for A-2
occupancies with an occupant load over 300
D) Yes, all A-2 occupancies require sprinklers
regardless of size
Correct answer: B
Rationale: Section 903.2.1.2 requires sprinklers in
Group A-2 occupancies when the fire area exceeds
5,000 sq ft. A 6,000 sq ft fire area exceeds the
threshold.
,4. A new 5-story office building has a total occupant
load of 1,200 people. How many exits are required
from each floor?
A) 1 exit
B) 2 exits
C) 3 exits
D) 4 exits
Correct answer: C
Rationale: IBC Table 1006.2.1 requires 3 exits for
occupant loads between 1,001 and 2,000. 1,200 falls
within that range.
5. A stairway serving a floor with an occupant load of
400 people must have a minimum clear width of:
A) 44 inches
B) 56 inches
C) 72 inches
D) 88 inches
Correct answer: A
Rationale: The minimum clear width for stairs serving
an occupant load of less than 2,000 is 44 inches. The
occupant load per floor is 400, which is less than
2,000.
, 6. A one-hour fire‑resistance‑rated wall is required to
separate a Group B occupancy from a Group S-2
occupancy. The designer proposes a wall of 5/8-inch
Type X gypsum board on each side of metal studs. Is
this acceptable?
A) Yes, this assembly is rated for 1 hour
B) No, the assembly requires two layers on each side
for a 1-hour rating
C) Yes, if the studs are 2x4 wood
D) No, metal studs cannot be used in fire-rated walls
Correct answer: A
Rationale: A single layer of 5/8-inch Type X gypsum
board on each side of metal studs provides a 1-hour
fire rating per UL designs.
7. A building has a total floor area of 45,000 sq ft and
is of Type IIB construction. The occupancy is Group
B. The building is not sprinklered. What is the
minimum number of fire areas required?
A) 2
B) 3
C) 4
D) 5
INSPECTOR (B2) CERTIFICATION EXAM
OFFERED BY INTERNATIONAL CODE
COUNCIL (ICC) | Q&A WITH RATIONALES
1. A new 30,000 sq ft office building (Group B) is of
Type IIB construction and is not sprinklered. What is
the maximum allowable number of stories for this
building?
A) 2 stories
B) 3 stories
C) 4 stories
D) 5 stories
Correct answer: A
Rationale: IBC Table 504.3 limits an unsprinklered
Type IIB Group B building to 2 stories.
2. A 30,000 sq ft retail store (Group M) is of Type IIB
construction and is not sprinklered. What is the
maximum allowable area per story?
A) 9,000 sq ft
B) 12,000 sq ft
,C) 18,000 sq ft
D) 24,000 sq ft
Correct answer: C
Rationale: IBC Table 506.2 allows 18,000 sq ft for
unsprinklered Type IIB Group M.
3. A restaurant (Group A-2) has a fire area of 6,000 sq
ft and is not sprinklered. According to IBC Section
903.2.1.2, is an automatic sprinkler system required?
A) No, sprinklers are only required for fire areas over
5,000 sq ft in A-2 occupancies
B) Yes, sprinklers are required for A-2 fire areas over
5,000 sq ft
C) No, sprinklers are required only for A-2
occupancies with an occupant load over 300
D) Yes, all A-2 occupancies require sprinklers
regardless of size
Correct answer: B
Rationale: Section 903.2.1.2 requires sprinklers in
Group A-2 occupancies when the fire area exceeds
5,000 sq ft. A 6,000 sq ft fire area exceeds the
threshold.
,4. A new 5-story office building has a total occupant
load of 1,200 people. How many exits are required
from each floor?
A) 1 exit
B) 2 exits
C) 3 exits
D) 4 exits
Correct answer: C
Rationale: IBC Table 1006.2.1 requires 3 exits for
occupant loads between 1,001 and 2,000. 1,200 falls
within that range.
5. A stairway serving a floor with an occupant load of
400 people must have a minimum clear width of:
A) 44 inches
B) 56 inches
C) 72 inches
D) 88 inches
Correct answer: A
Rationale: The minimum clear width for stairs serving
an occupant load of less than 2,000 is 44 inches. The
occupant load per floor is 400, which is less than
2,000.
, 6. A one-hour fire‑resistance‑rated wall is required to
separate a Group B occupancy from a Group S-2
occupancy. The designer proposes a wall of 5/8-inch
Type X gypsum board on each side of metal studs. Is
this acceptable?
A) Yes, this assembly is rated for 1 hour
B) No, the assembly requires two layers on each side
for a 1-hour rating
C) Yes, if the studs are 2x4 wood
D) No, metal studs cannot be used in fire-rated walls
Correct answer: A
Rationale: A single layer of 5/8-inch Type X gypsum
board on each side of metal studs provides a 1-hour
fire rating per UL designs.
7. A building has a total floor area of 45,000 sq ft and
is of Type IIB construction. The occupancy is Group
B. The building is not sprinklered. What is the
minimum number of fire areas required?
A) 2
B) 3
C) 4
D) 5
