HUD HUD Structural and Mechanical Systems 2 — Questions and Answers
Question 1: Under HQS, what is the standard for an 'adequate' electrical supply in a dwelling unit?
- At least 60-amp service
- A wiring system free of hazardous conditions with sufficient outlets in each room (Correct answer)
- At least one outlet per room
- Circuit breaker panel of 100 amps or more
Correct answer: A wiring system free of hazardous conditions with sufficient outlets in each room
HQS focuses on safety and functionality — the electrical system must be free of hazardous conditions and provide sufficient outlets so occupants don't rely on extension cords as permanent wiring.
Question 2: An inspector notes that the basement of a HUD-assisted property has standing water after a recent rain. What is the structural concern?
- Only a cosmetic issue
- Potential foundation undermining, efflorescence, and structural damage to sill plates and joists (Correct answer)
- Normal for older homes and not a HQS concern
- Only a concern if the basement is finished
Correct answer: Potential foundation undermining, efflorescence, and structural damage to sill plates and joists
Basement water intrusion can undermine foundations, cause wood rot in sill plates and joists, and create mold conditions — all structural and health safety concerns under HQS.
Question 3: What condition related to chimneys must a HUD inspector specifically evaluate during an inspection?
- Whether the chimney was originally installed by a licensed mason
- Whether the chimney is structurally sound and free of obstructions that could prevent proper venting of combustion gases (Correct answer)
- The decorative condition of the chimney cap
- Whether the chimney liner was installed after 2000
Correct answer: Whether the chimney is structurally sound and free of obstructions that could prevent proper venting of combustion gases
Inspectors must evaluate chimney structural integrity and freedom from obstruction because blocked or damaged chimneys can cause carbon monoxide to back-draft into the living space.
Question 4: During a HUD inspection, the inspector finds aluminum branch-circuit wiring in a home built in 1973 connected to devices not rated for aluminum. What hazard does this present?
- None — aluminum wiring is equivalent to copper
- Fire hazard due to loose connections caused by aluminum's expansion and contraction properties (Correct answer)
- Grounding issues only
- Only a problem if the circuit serves a major appliance
Correct answer: Fire hazard due to loose connections caused by aluminum's expansion and contraction properties
Aluminum branch wiring connected to non-aluminum-rated devices is a fire hazard because aluminum expands and contracts differently than copper, causing loose connections that can arc and ignite.
Question 5: What is the minimum required header size over a 6-foot wide window opening in an exterior load-bearing wall under standard residential structural practice applicable to HUD inspections?
- 2×4 flat header
- Double 2×8 or equivalent engineered lumber (Correct answer)
- Single 2×6 on edge
- No header required if cripple studs are present
Correct answer: Double 2×8 or equivalent engineered lumber
A 6-foot opening in a load-bearing exterior wall requires a substantial header, typically a doubled 2×8 or larger (or engineered equivalent), to transfer the load around the opening.
Question 6: Under HUD HQS, what is required of handrails on interior stairs with four or more risers?
- Handrails are optional for interior stairs under HQS
- At least one graspable handrail on stairs with four or more risers (Correct answer)
- Handrails on both sides for all interior stairs
- Handrails only required if children under 12 reside in the unit
Correct answer: At least one graspable handrail on stairs with four or more risers
HQS requires at least one graspable handrail on interior stairs with four or more risers to prevent falls, regardless of occupant age.
HUD HUD Structural and Mechanical Systems 2
Under HQS, what is the standard for an 'adequate' electrical supply in a dwelling unit?