Why Are Cavity Varnishes and Liners Ineffective as Thermal Insulators

question 7

Multiple Choice

Why are cavity varnishes and liners ineffective as thermal insulators?

• A) Used in thin layers
• B) High thermal conductivity
• C) Low coefficient of thermal expansion
• D) High coefficient of thermal expansion

---

Definitions:

Overwhelming Anxiety

An intense feeling of worry, nervousness, or unease that can severely impact day-to-day functioning.

Heart Pounds

A sensation where the heartbeat is strongly and rapidly felt, often due to excitement, fear, or physical exertion.

Phobic Disorder

A type of anxiety disorder characterized by an excessive and irrational fear of an object, situation, or activity that is typically harmless, leading to avoidance behaviors.

Heights

Varied elevations or tall areas which can induce a fear known as acrophobia in individuals.