NHIE Plumbing 5

Question 1

A home inspector tests a shower and finds the water temperature reaches 130°F when the hot is fully open. What should be recommended?

Accepted Answer

A thermostatic mixing valve or anti-scald device should be installed or adjusted to limit temperature

Answer

Shower water exceeding 120°F creates a scalding hazard; a thermostatic mixing valve or adjusting the water heater thermostat is the appropriate correction.

Question 2

What is the correct observation when a home inspector finds a cleanout plug missing from a drain cleanout fitting?

Accepted Answer

The missing plug allows sewer gas to escape and must be reported as a deficiency requiring repair

Answer

A missing cleanout plug allows sewer gases to enter the structure and should be documented as a deficiency requiring prompt correction.

Question 3

Which pipe material is commonly identified by its orange-tan color and is used for gas distribution within a home?

Accepted Answer

CSST (corrugated stainless steel tubing)

Answer

CSST (corrugated stainless steel tubing) has a distinctive flexible, ribbed appearance often covered in a yellow or orange plastic jacket and is widely used for residential gas distribution.

Question 4

A home inspector finds that the main water shutoff valve is a gate valve that cannot be fully opened or closed. What should be reported?

Accepted Answer

The valve should be noted as deficient since it may not reliably shut off water in an emergency

Answer

A main shutoff that cannot fully open or close is a safety concern because it may fail to stop water flow during a plumbing emergency.

Question 5

What condition does mineral scale buildup inside a water heater tank primarily cause?

Accepted Answer

Reduced efficiency and heating capacity, and accelerated tank corrosion

Answer

Mineral scale insulates the heating element or burner from water, reducing efficiency, increasing energy consumption, and accelerating tank corrosion and failure.

(NHIE) National Home Inspector Examination Practice Test

(NHIE) National Home Inspector Examination Practice Test

NHIE Plumbing 5