ALABAMA MANUFACTURED HOUSING INSTALLER
LATEST UPDATED 2026-2027 MOST COMPREHENSIVE
PRACTICE EXAM CONSISTING OF 100 MOST TESTED
QUESTIONS AND 100% CORRECT ANSWER AND
DETAILED RATIONALES PLUS ANSWER KEY
GUARANTEED PASS INSTANT DOWNLOAD PDF
1. A manufactured home installer is preparing to set a home on a site. What
should be done to verify the site's soil-bearing capacity?
A) Visually inspect the soil
B) Consult the local building department's soil records
C) Perform a soil test or consult a geotechnical engineer
D) Assume the soil is adequate
Correct Answer: C
Rationale: The soil-bearing capacity must be verified through a soil test or by
,consulting a geotechnical engineer to ensure the foundation can support the
home's weight.
2. A manufactured home is being installed on a permanent foundation. What is
the minimum depth for footings in Alabama's frost line areas?
A) 6 inches
B) 12 inches
C) 18 inches
D) 24 inches
Correct Answer: B
Rationale: In Alabama, footings must extend below the frost line to prevent
heaving. The minimum depth is typically 12 inches, but local codes may require
more.
3. What is the primary purpose of using piers and tie-downs in a manufactured
home installation?
A) To level the home
B) To anchor the home against wind uplift and overturning
C) To provide a foundation for the home
D) To connect the home to utilities
Correct Answer: B
Rationale: Piers and tie-downs are critical components of the foundation system
designed to resist wind uplift and overturning forces, ensuring the home remains
secure during high winds.
4. An installer is connecting the electrical service to a manufactured home. The
main service panel must be:
A) Located inside the home
B) Located outside the home
,C) Accessible and properly grounded
D) Installed by an electrician only
Correct Answer: C
Rationale: The main service panel must be accessible for maintenance and
emergency shut-off and must be properly grounded according to the National
Electrical Code (NEC).
5. A manufactured home is being installed with a crawlspace foundation. What is
the minimum clearance required between the ground and the bottom of the floor
joists?
A) 6 inches
B) 12 inches
C) 18 inches
D) 24 inches
Correct Answer: C
Rationale: A minimum clearance of 18 inches is required under a crawlspace to
allow for access, ventilation, and to prevent moisture issues.
6. What is the maximum slope allowed for the installation of a manufactured
home on a site without requiring special engineering?
A) 5%
B) 10%
C) 15%
D) 20%
Correct Answer: B
Rationale: Installations on slopes greater than 10% require engineered plans and
special foundation considerations to ensure stability.
, 7. An installer is preparing to place a home on a site. The ground should be:
A) Sloped away from the home
B) Level and free of debris
C) Covered with gravel
D) Wet to compact the soil
Correct Answer: B
Rationale: The site must be level and free of debris to provide a stable base for the
foundation. Any slopes should direct water away from the home.
8. A manufactured home is connected to a septic system. The installer must
ensure:
A) The septic tank is installed by a certified installer
B) The septic system meets local health department regulations
C) The system is located at least 50 feet from the home
D) The system is installed after the home is set
Correct Answer: B
Rationale: Septic systems must meet local health department regulations and
permits. The installer must coordinate with the appropriate authorities.
9. What is the purpose of the vapor barrier under a manufactured home?
A) To insulate the home
B) To prevent moisture from rising into the home
C) To stabilize the foundation
D) To protect against termites
Correct Answer: B
Rationale: A vapor barrier (typically polyethylene sheeting) is placed on the ground
under the home to prevent ground moisture from rising into the crawlspace and
affecting the home.
LATEST UPDATED 2026-2027 MOST COMPREHENSIVE
PRACTICE EXAM CONSISTING OF 100 MOST TESTED
QUESTIONS AND 100% CORRECT ANSWER AND
DETAILED RATIONALES PLUS ANSWER KEY
GUARANTEED PASS INSTANT DOWNLOAD PDF
1. A manufactured home installer is preparing to set a home on a site. What
should be done to verify the site's soil-bearing capacity?
A) Visually inspect the soil
B) Consult the local building department's soil records
C) Perform a soil test or consult a geotechnical engineer
D) Assume the soil is adequate
Correct Answer: C
Rationale: The soil-bearing capacity must be verified through a soil test or by
,consulting a geotechnical engineer to ensure the foundation can support the
home's weight.
2. A manufactured home is being installed on a permanent foundation. What is
the minimum depth for footings in Alabama's frost line areas?
A) 6 inches
B) 12 inches
C) 18 inches
D) 24 inches
Correct Answer: B
Rationale: In Alabama, footings must extend below the frost line to prevent
heaving. The minimum depth is typically 12 inches, but local codes may require
more.
3. What is the primary purpose of using piers and tie-downs in a manufactured
home installation?
A) To level the home
B) To anchor the home against wind uplift and overturning
C) To provide a foundation for the home
D) To connect the home to utilities
Correct Answer: B
Rationale: Piers and tie-downs are critical components of the foundation system
designed to resist wind uplift and overturning forces, ensuring the home remains
secure during high winds.
4. An installer is connecting the electrical service to a manufactured home. The
main service panel must be:
A) Located inside the home
B) Located outside the home
,C) Accessible and properly grounded
D) Installed by an electrician only
Correct Answer: C
Rationale: The main service panel must be accessible for maintenance and
emergency shut-off and must be properly grounded according to the National
Electrical Code (NEC).
5. A manufactured home is being installed with a crawlspace foundation. What is
the minimum clearance required between the ground and the bottom of the floor
joists?
A) 6 inches
B) 12 inches
C) 18 inches
D) 24 inches
Correct Answer: C
Rationale: A minimum clearance of 18 inches is required under a crawlspace to
allow for access, ventilation, and to prevent moisture issues.
6. What is the maximum slope allowed for the installation of a manufactured
home on a site without requiring special engineering?
A) 5%
B) 10%
C) 15%
D) 20%
Correct Answer: B
Rationale: Installations on slopes greater than 10% require engineered plans and
special foundation considerations to ensure stability.
, 7. An installer is preparing to place a home on a site. The ground should be:
A) Sloped away from the home
B) Level and free of debris
C) Covered with gravel
D) Wet to compact the soil
Correct Answer: B
Rationale: The site must be level and free of debris to provide a stable base for the
foundation. Any slopes should direct water away from the home.
8. A manufactured home is connected to a septic system. The installer must
ensure:
A) The septic tank is installed by a certified installer
B) The septic system meets local health department regulations
C) The system is located at least 50 feet from the home
D) The system is installed after the home is set
Correct Answer: B
Rationale: Septic systems must meet local health department regulations and
permits. The installer must coordinate with the appropriate authorities.
9. What is the purpose of the vapor barrier under a manufactured home?
A) To insulate the home
B) To prevent moisture from rising into the home
C) To stabilize the foundation
D) To protect against termites
Correct Answer: B
Rationale: A vapor barrier (typically polyethylene sheeting) is placed on the ground
under the home to prevent ground moisture from rising into the crawlspace and
affecting the home.
