MICHIGAN BUILDERS LICENSE EXAM PRACTICE
QUESTIONS WITH CORRECT ANSWERS AND RATIONALES
1. The International Residential Code (IRC) serves as a complete,
comprehensive code regulating the construction of which types of
buildings?
A) Commercial buildings only
B) Industrial warehouses and factories
C) Single-family, two-family, and buildings consisting of three or more
townhouse units
D) High-rise apartment buildings
Correct Answer: C
Rationale: The IRC was specifically created to serve as a comprehensive
code regulating the construction of single-family, two-family, and
buildings consisting of three or more townhouse units. It does not
regulate commercial, industrial, or high-rise buildings.
2. What is the general purpose of the building official's job?
A) To ensure buildings exceed minimum standards
B) To determine that buildings are built to the minimum enforceable
standard
C) To design building structures
D) To approve all building materials before construction begins
,Correct Answer: B
Rationale: The building official's primary job is to ensure buildings are
constructed to the minimum enforceable standard, not to exceed
standards or design structures.
3. How many square feet of glazing area must bathrooms be provided
with, with half being openable?
A) 1 square foot
B) 2 square feet
C) 3 square feet
D) 4 square feet
Correct Answer: C
Rationale: Bathrooms must be provided with an aggregate glazing area
no less than 3 square feet, with at least half of that area being
openable.
4. Which of the following is considered a habitable space?
A) Bathroom
B) Storage space
C) Kitchen
D) Closet
Correct Answer: C
,Rationale: Kitchens are considered habitable spaces. Bathrooms,
storage spaces, and closets are not classified as habitable spaces under
the code.
5. What is the maximum height of an egress window above the floor?
A) 36 inches
B) 40 inches
C) 44 inches
D) 48 inches
Correct Answer: C
Rationale: The maximum height of an egress window above the floor is
44 inches to ensure safe egress in case of emergency.
6. What is the minimum clear opening size required for a basement
bedroom egress window?
A) 4.5 square feet
B) 5.0 square feet
C) 5.7 square feet
D) 6.5 square feet
Correct Answer: C
Rationale: A basement bedroom must have an egress window with a
clear opening of at least 5.7 square feet to provide adequate emergency
escape.
, 7. How wide must at least one side-hinged exit door be in each
dwelling unit?
A) 2 feet 6 inches
B) 2 feet 8 inches
C) 3 feet
D) 3 feet 6 inches
Correct Answer: C
Rationale: At least one side-hinged exit door must be provided in each
dwelling unit and must be 3 feet wide for safe egress.
8. At what height above grade must a porch be provided with 36-inch
guards?
A) 24 inches
B) 30 inches
C) 36 inches
D) 42 inches
Correct Answer: B
Rationale: A porch more than 30 inches above grade must be provided
with 36-inch guards for safety.
9. What is the maximum flame-spread classification allowed for wall
and ceiling finishes?
A) 100
B) 150
QUESTIONS WITH CORRECT ANSWERS AND RATIONALES
1. The International Residential Code (IRC) serves as a complete,
comprehensive code regulating the construction of which types of
buildings?
A) Commercial buildings only
B) Industrial warehouses and factories
C) Single-family, two-family, and buildings consisting of three or more
townhouse units
D) High-rise apartment buildings
Correct Answer: C
Rationale: The IRC was specifically created to serve as a comprehensive
code regulating the construction of single-family, two-family, and
buildings consisting of three or more townhouse units. It does not
regulate commercial, industrial, or high-rise buildings.
2. What is the general purpose of the building official's job?
A) To ensure buildings exceed minimum standards
B) To determine that buildings are built to the minimum enforceable
standard
C) To design building structures
D) To approve all building materials before construction begins
,Correct Answer: B
Rationale: The building official's primary job is to ensure buildings are
constructed to the minimum enforceable standard, not to exceed
standards or design structures.
3. How many square feet of glazing area must bathrooms be provided
with, with half being openable?
A) 1 square foot
B) 2 square feet
C) 3 square feet
D) 4 square feet
Correct Answer: C
Rationale: Bathrooms must be provided with an aggregate glazing area
no less than 3 square feet, with at least half of that area being
openable.
4. Which of the following is considered a habitable space?
A) Bathroom
B) Storage space
C) Kitchen
D) Closet
Correct Answer: C
,Rationale: Kitchens are considered habitable spaces. Bathrooms,
storage spaces, and closets are not classified as habitable spaces under
the code.
5. What is the maximum height of an egress window above the floor?
A) 36 inches
B) 40 inches
C) 44 inches
D) 48 inches
Correct Answer: C
Rationale: The maximum height of an egress window above the floor is
44 inches to ensure safe egress in case of emergency.
6. What is the minimum clear opening size required for a basement
bedroom egress window?
A) 4.5 square feet
B) 5.0 square feet
C) 5.7 square feet
D) 6.5 square feet
Correct Answer: C
Rationale: A basement bedroom must have an egress window with a
clear opening of at least 5.7 square feet to provide adequate emergency
escape.
, 7. How wide must at least one side-hinged exit door be in each
dwelling unit?
A) 2 feet 6 inches
B) 2 feet 8 inches
C) 3 feet
D) 3 feet 6 inches
Correct Answer: C
Rationale: At least one side-hinged exit door must be provided in each
dwelling unit and must be 3 feet wide for safe egress.
8. At what height above grade must a porch be provided with 36-inch
guards?
A) 24 inches
B) 30 inches
C) 36 inches
D) 42 inches
Correct Answer: B
Rationale: A porch more than 30 inches above grade must be provided
with 36-inch guards for safety.
9. What is the maximum flame-spread classification allowed for wall
and ceiling finishes?
A) 100
B) 150
