Home Inspector Test Home Inspector Foundation and Basement Inspection 3

Question 1

What is a 'cold joint' in a poured concrete foundation wall?

Accepted Answer

A visible seam where two separate concrete pours meet, often a path for water infiltration

Answer

A crack caused by freezing temperatures during curing

Answer

A control joint intentionally cut into the slab

Answer

The joint between the footing and the foundation wall

Question 2

What does a home inspector look for when checking the connection between the foundation wall and the mudsill (sill plate)?

Accepted Answer

Anchor bolts or straps, signs of rot or insect damage in the mudsill, and proper connection to the foundation

Answer

The color of the wood

Answer

The number of nails in the rim joist

Answer

Whether the mudsill is painted

Question 3

When a basement floor slab shows significant cracking with vertical displacement (one side higher than the other), this most likely indicates:

Accepted Answer

Differential movement, possibly from soil settlement or upheaval beneath the slab

Answer

Normal drying shrinkage

Answer

Improper surface finishing during pour

Answer

Low-quality aggregate in the concrete mix

Question 4

What is 'negative grading' and why does a home inspector flag it?

Accepted Answer

Ground that slopes toward the foundation, directing surface water against the house

Answer

A foundation that is below the frost line

Answer

Insufficient concrete strength in the footing

Answer

A retaining wall that leans inward

Question 5

A home inspector finds that insulation is installed against the foundation walls of a conditioned basement but no vapor barrier is present on the soil floor. What should be noted?

Accepted Answer

The absence of a floor vapor barrier allows ground moisture to evaporate into the conditioned space, causing humidity problems

Answer

This is acceptable — floor vapor barriers are not required in conditioned basements

Answer

A dehumidifier is always an adequate substitute for a vapor barrier

Answer

Only the walls need vapor protection in a conditioned basement

Question 6

What is the significance of a 'telltale' crack monitor placed across a foundation crack?

Accepted Answer

It measures whether the crack is active (still moving) or dormant over time

Answer

It seals the crack permanently

Answer

It prevents water infiltration through the crack

Answer

It indicates the crack has already been repaired