Water Damage Restoration Drying Equipment and Technology 2

Question 1

What does LGR stand for in the context of dehumidification equipment?

Accepted Answer

Low Grain Refrigerant

Answer

LGR stands for Low Grain Refrigerant, describing dehumidifiers designed to achieve very low grain humidity levels through advanced refrigerant circuit design.

Question 2

Which type of air mover produces the highest static pressure and is best for duct attachments?

Accepted Answer

Centrifugal air mover

Answer

Centrifugal air movers produce higher static pressure than axial fans, making them ideal for use with duct attachments and cavity drying systems.

Question 3

What is the purpose of a negative air machine in water damage restoration?

Accepted Answer

To create containment by exhausting air and preventing cross-contamination

Answer

Negative air machines create lower pressure inside the work area, preventing contaminated air from migrating to clean areas of the structure.

Question 4

At what minimum temperature do refrigerant dehumidifiers typically begin to lose significant efficiency?

Accepted Answer

55°F (13°C)

Answer

Refrigerant dehumidifiers lose significant efficiency below approximately 55°F (13°C) because the refrigerant coils begin to frost over.

Question 5

What is a 'floor mat system' used for in water damage restoration?

Accepted Answer

Extracting moisture from hardwood or other floor assemblies using suction

Answer

Floor mat systems use suction drying technology to pull moisture directly through hardwood floors and other flooring assemblies without removal.

Water Damage Restoration Practice Test

Water Damage Restoration Practice Test

Water Damage Restoration Drying Equipment and Technology 2