ASHI Plumbing, Electrical & HVAC Systems 5

Question 1

What is the maximum distance allowed between support hangers for horizontal copper water supply pipe (3/4 inch)?

Accepted Answer

8 feet

Answer

Horizontal copper pipe up to 1-1/4 inches in diameter requires support at maximum 6-foot intervals; 3/4-inch copper is commonly cited at 6 feet, though some codes specify 8 feet — inspectors should note unsupported long spans.

Question 2

During inspection, an inspector finds a bathroom exhaust fan that terminates into the attic. What should be reported?

Accepted Answer

The fan duct must terminate to the exterior; discharging into the attic causes moisture damage and mold

Answer

Exhaust fans must terminate outside the building; discharging into the attic introduces moisture that causes structural damage and mold growth.

Question 3

A home inspector tests a receptacle near a kitchen sink and the GFCI trips with the tester, but when reset, the outlet shows correct wiring. What is the correct action?

Accepted Answer

This indicates proper GFCI function; no deficiency exists

Answer

A GFCI that trips when tested and resets properly to provide power is functioning correctly — tripping on test is the desired behavior.

Question 4

What does the presence of yellow (gas) corrugated stainless steel tubing (CSST) bonded to the electrical system indicate?

Accepted Answer

Proper installation practice — CSST requires bonding to minimize arc puncture risk from nearby lightning strikes

Answer

CSST must be bonded to the electrical grounding system because nearby lightning strikes can arc through the thin stainless wall, causing gas leaks and fires.

Question 5

An inspector finds a furnace heat exchanger with visible cracks. What is the primary health concern?

Accepted Answer

Carbon monoxide from combustion gases can enter the air distribution system and living space

Answer

Cracks in the heat exchanger allow combustion gases, including deadly carbon monoxide, to mix with circulated air and enter the living space.

(ASHI) ASHI Certified Home Inspector Practice Test

(ASHI) ASHI Certified Home Inspector Practice Test

ASHI Plumbing, Electrical & HVAC Systems 5