EPA 608 Practice Exam Round 1

Name:

What is the primary function of the ozone layer?

• Absorb carbon dioxide
• Trap greenhouse gases
• Absorb harmful ultraviolet radiation
• Reflect sunlight

Why is a refrigerant system dehydrated?

• chlorine and bromine
• release to the atmosphere
• to remove the water and moisture
• high-side process stub

Which refrigerant type has the highest ozone depletion potential (ODP)?

• Hydrochlorofluorocarbons (HCFCs)
• Hydrofluorocarbons (HFCs)
• Chlorofluorocarbons (CFCs)
• Hydrocarbons (HCs)

low-pressure equipment like low-pressure chillers.

• type 7
• 0 inches of vacuum
• type 3
• type 2

What is the purpose of the Montreal Protocol?

• Regulate refrigerant recycling
• Reduce global warming
• Phase out ozone-depleting substances
• Limit carbon emissions

Self-contained and system-dependent.

• 2 basic types of recovery devices
• 3 basic types of recovery devices
• 98 basic types of recovery devices
• 0 inches of vacuum

Which agency is responsible for enforcing refrigeration regulations?

• FBI
• EPA
• OSHA
• APS

A refrigerant monitor that will sound an alarm and automatically start a ventilation system inequipment rooms before the refrigerant concentration reaches TLV-TWA

• Ashrae standard 3
• Ashrae standard 30
• ASHRAE standard 15
• Ashrae standard 25

What must be done before disposing of a refrigerant-containing appliance?

• Remove all refrigerant
• Remove the compressor
• Flush the system with water
• Purge the system with air