Question 1

When considering the use of outdoor air, which of the following conditions is the best?

Options :

A : 50°F (10°C) and 80% RH

B : 60°F (16°C) and 60% RH

C : 70°F (21°C) and 30% RH

D : 80°F (27°C) and 70% RH

Answer: C

Question 2

What happens to the surface of a wet material as moisture evaporates?

Options :

A : The surface becomes cooler

B : The surface becomes warmer

C : The surface becomes non-porous

D : The surface becomes porous

Answer: A

Question 3

What is the term for the temperature at which air reaches 100% relative humidity?

Options :

A : Humidity ratio temperature

B : Absolute temperature

C : Dew point temperature

D : Relative humidity temperature

Answer: C

Question 4

What should a technician do in a Category 3 water intrusion when high-risk individuals are present?

Options :

A : Retain an Indoor Environmental Professional (IEP)

B : Install additional air movers and dehumidifiers

C : Always perform a mold test to verify remediation effectiveness

D : Be primarily concerned with the dehumidifier’s AHAM rating

Answer: A

Question 5

If indoor conditions are 90°F (32°C) and 60% relative humidity, at what surface temperature does condensation begin to occur?

Options :

A : 52°F (11°C)

B : 58°F (14°C)

C : 74°F (23°C)

D : 88°F (31°C)

Answer: C

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