CA Materials & Techniques 3

Question 1

A claims adjuster is inspecting a property with 'galvanic corrosion' on copper pipes where they connect to galvanized steel fittings. What causes this?

Accepted Answer

Electrochemical reaction between two dissimilar metals

Answer

Galvanic corrosion occurs when two dissimilar metals are in electrical contact in the presence of an electrolyte (water), causing the less noble metal to corrode.

Question 2

What is 'oriented strand board' (OSB) and how does its performance differ from plywood in water damage claims?

Accepted Answer

OSB is engineered wood panels that swell and delaminate more severely when wet than plywood

Answer

OSB is made from compressed wood strands and adhesive; it absorbs water at the edges and swells significantly, whereas plywood dries more uniformly and retains more structural integrity.

Question 3

During a fire damage inspection, an adjuster notes 'alligatoring' on painted wood surfaces. What does this pattern indicate?

Accepted Answer

Extreme heat exposure causing paint to crack in a reptile-scale pattern

Answer

Alligatoring in fire-exposed areas indicates the paint experienced rapid extreme heat, creating a characteristic scaly cracking pattern used to estimate heat intensity.

Question 4

What is the function of 'weep holes' in brick veneer construction, and when would their absence be relevant in a water damage claim?

Accepted Answer

They allow water that enters the cavity to drain out and prevent moisture buildup behind the veneer

Answer

Weep holes are small openings at the base of brick veneer that allow any infiltrated water to drain out of the wall cavity; their absence can trap water and cause hidden moisture damage.

Question 5

A homeowner claims their EIFS (Exterior Insulation and Finish System) stucco exterior was damaged. What unique concern should an adjuster investigate?

Accepted Answer

EIFS can trap moisture behind the cladding causing hidden rot in the substrate

Answer

Traditional EIFS without a drainage plane can trap water that penetrates through cracks, leading to hidden rot in the wood sheathing and framing behind it.

(CA) Certified Adjuster Designation Practice Test

(CA) Certified Adjuster Designation Practice Test

CA Materials & Techniques 3