NEW MEXICO MHD-1 MANUFACTURED HOUSING INSTALLER
EXAMINATION COMPLETE QUESTIONS AND DETAILED
SOLUTIONS LATEST UPDATE THIS YEAR JUST RELEASED
1. What is the primary purpose of the MHD-1 installer license in New
Mexico?
A. To authorize all electrical repairs in manufactured homes
B. To authorize specified manufactured-home installation functions
C. To authorize natural-gas system repairs
D. To authorize structural remodeling of manufactured homes
Answer: B
Rationale: MHD-1 is an installer classification with a defined scope. It
permits activities such as leveling, placing piers, attaching tiedowns,
connecting existing water/sewer lines, connecting electrical cable to an
approved existing receptacle, skirting, and certain foundation-related
concrete work. (
2. Which activity is specifically within the MHD-1 scope?
A. Repairing a gas furnace
B. Replacing a home's main electrical service
C. Leveling the ground and placing piers
D. Rebuilding a damaged wall
Answer: C
Rationale: Leveling ground and placing piers to support the manufactured
home is expressly identified as an MHD-1 function. (
,3. Which license classification expands upon the MHD-1 scope to include
structural repairs, alterations, and modifications?
A. MHD-1
B. MHD-2
C. MHD-3
D. MHD-3E only
Answer: B
Rationale: MHD-2 includes all MHD-1 functions and additionally permits
structural repairs, alterations, and modifications. ()
4. Which classification provides the broadest general installer/repair scope
among MHD-1, MHD-2, and MHD-3?
A. MHD-1
B. MHD-2
C. MHD-3
D. All three have identical scopes
Answer: C
Rationale: MHD-3 includes MHD-1 and MHD-2 functions plus specified gas,
plumbing, and electrical service and repair activities. (
5. An MHD-1 installer is asked to repair a damaged structural wall in a
manufactured home. What is the best response?
A. Perform the repair because all installation work is allowed
B. Perform it only if the owner approves
,C. Decline because structural repairs are outside MHD-1 scope
D. Perform it if no inspector is present
Answer: C
Rationale: Structural repairs, alterations, and modifications are associated
with the MHD-2 scope rather than MHD-1. ()
6. Which activity is NOT normally within the MHD-1 scope?
A. Installing and repairing skirting
B. Attaching and tightening tiedowns
C. Connecting existing water and sewer lines
D. Servicing natural-gas appliances
Answer: D
Rationale: Natural-gas piping and appliance service/repair is included in the
broader MHD-3 scope, not ordinary MHD-1 work. (
7. A homeowner asks an MHD-1 installer to install a new electrical service
panel. What should the installer do?
A. Perform the work because electrical work is always included
B. Perform the work only after obtaining homeowner permission
C. Stay within the MHD-1 electrical scope and refer work outside it to the
appropriately licensed professional
D. Install it if the panel is less than 200 amperes
Answer: C
Rationale: MHD-1's specified electrical function concerns connecting the
home's electrical cable to an approved existing receptacle; it does not
, authorize general electrical system work. (
8. The New Mexico MHD installer examinations are administered by which
testing organization?
A. ICC
B. PSI
C. NFPA
D. HUD
Answer: B
Rationale: New Mexico RLD states that examinations for Manufactured
Housing license types are administered by PSI. (t)
9. The MHD-1 examination is described by New Mexico RLD as:
A. Closed book with no references
B. Open book with specified reference materials
C. Oral only
D. A practical-only examination
Answer: B
Rationale: The official exam information identifies the examination as open
book and lists permitted reference materials. (
10. Which of the following is an approved reference identified by New
Mexico RLD for the manufactured housing examination?
A. 24 CFR Part 3285
B. International Plumbing Code 2026 only
EXAMINATION COMPLETE QUESTIONS AND DETAILED
SOLUTIONS LATEST UPDATE THIS YEAR JUST RELEASED
1. What is the primary purpose of the MHD-1 installer license in New
Mexico?
A. To authorize all electrical repairs in manufactured homes
B. To authorize specified manufactured-home installation functions
C. To authorize natural-gas system repairs
D. To authorize structural remodeling of manufactured homes
Answer: B
Rationale: MHD-1 is an installer classification with a defined scope. It
permits activities such as leveling, placing piers, attaching tiedowns,
connecting existing water/sewer lines, connecting electrical cable to an
approved existing receptacle, skirting, and certain foundation-related
concrete work. (
2. Which activity is specifically within the MHD-1 scope?
A. Repairing a gas furnace
B. Replacing a home's main electrical service
C. Leveling the ground and placing piers
D. Rebuilding a damaged wall
Answer: C
Rationale: Leveling ground and placing piers to support the manufactured
home is expressly identified as an MHD-1 function. (
,3. Which license classification expands upon the MHD-1 scope to include
structural repairs, alterations, and modifications?
A. MHD-1
B. MHD-2
C. MHD-3
D. MHD-3E only
Answer: B
Rationale: MHD-2 includes all MHD-1 functions and additionally permits
structural repairs, alterations, and modifications. ()
4. Which classification provides the broadest general installer/repair scope
among MHD-1, MHD-2, and MHD-3?
A. MHD-1
B. MHD-2
C. MHD-3
D. All three have identical scopes
Answer: C
Rationale: MHD-3 includes MHD-1 and MHD-2 functions plus specified gas,
plumbing, and electrical service and repair activities. (
5. An MHD-1 installer is asked to repair a damaged structural wall in a
manufactured home. What is the best response?
A. Perform the repair because all installation work is allowed
B. Perform it only if the owner approves
,C. Decline because structural repairs are outside MHD-1 scope
D. Perform it if no inspector is present
Answer: C
Rationale: Structural repairs, alterations, and modifications are associated
with the MHD-2 scope rather than MHD-1. ()
6. Which activity is NOT normally within the MHD-1 scope?
A. Installing and repairing skirting
B. Attaching and tightening tiedowns
C. Connecting existing water and sewer lines
D. Servicing natural-gas appliances
Answer: D
Rationale: Natural-gas piping and appliance service/repair is included in the
broader MHD-3 scope, not ordinary MHD-1 work. (
7. A homeowner asks an MHD-1 installer to install a new electrical service
panel. What should the installer do?
A. Perform the work because electrical work is always included
B. Perform the work only after obtaining homeowner permission
C. Stay within the MHD-1 electrical scope and refer work outside it to the
appropriately licensed professional
D. Install it if the panel is less than 200 amperes
Answer: C
Rationale: MHD-1's specified electrical function concerns connecting the
home's electrical cable to an approved existing receptacle; it does not
, authorize general electrical system work. (
8. The New Mexico MHD installer examinations are administered by which
testing organization?
A. ICC
B. PSI
C. NFPA
D. HUD
Answer: B
Rationale: New Mexico RLD states that examinations for Manufactured
Housing license types are administered by PSI. (t)
9. The MHD-1 examination is described by New Mexico RLD as:
A. Closed book with no references
B. Open book with specified reference materials
C. Oral only
D. A practical-only examination
Answer: B
Rationale: The official exam information identifies the examination as open
book and lists permitted reference materials. (
10. Which of the following is an approved reference identified by New
Mexico RLD for the manufactured housing examination?
A. 24 CFR Part 3285
B. International Plumbing Code 2026 only
