EPA Section 608 type 2

What will back-seating a suction shutoff valve close?

• Suction line and compressor port

• Compressor and gauge port

• Compressor port

• Gauge port

What is the easiest way to check the type of refrigerant used in a packaged rooftop unit

• The unit nameplate

• The refrigerant cylinder

• Ohms law

• Looking at the incoming voltage.

When trying to figure out the leak rate calculations on a package unit. What information can you use?

• Charge stated on name plate

• Total length of piping and system components

• Recovery cylinder weight

• Compressor horse power divided by amperage. In addition to filter dryer diameter.

Air-conditioning appliances used to supply cooling in order to control heat and/or humidity in occupied facilities is defined by EPA as Comfort Cooling. Which facility's are included in this category?

• Residential, office, and commercial

• Big y freezers

• Walmart walk-in coolers

• House hold "domestic refrigerators"

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which of the following repairs would always be considered 'major' under EPA's regulation?

• Replacement of an evaporator coil.

• Replacement of a filter-drier.

• Replacement of a Schrader valve core.

• Replacement of a condenser fan motor.

Before making a major repair, technicians must evacuate an appliance or component containing more than 200 pounds of R-410A to which of the following levels?

• 0 psig

• 25 mm Hg absolute

• 10 inches of Hg vacuum

• 15 inches of Hg vacuum

A cold storage warehouse chooses not to repair an appliance containing R-22 that is leaking above the threshold rate. How long can the facility continue to operate that appliance before it must be retrofitted or retired, assuming no extensions apply?

• 1 month

• 9 months

• 12 months

• 24 months

Tags

NGSS.HS-LS2-7

NGSS.HS-ESS3-4

NGSS.HS-ETS1-3

A company uses a chiller that diverts 55% of its cooling capacity to one of its manufacturing lines and 45% of its cooling capacity to air condition the office spaces. Which leak rate category would this chiller be in?

• Industrial process refrigeration

• Ice making refrigeration

• Commercial refrigeration

• Comfort cooling

How long must an HVAC servicing company keep records for each disposed app charge between 5 and 50 pounds?

• 1 year

• 3 years

• 5 years

• 10 years

When can appliances containing refrigerants be recovered to atmospheric pressure?

• If the appliance is known to have a leak that makes reaching the required recovery level unattainable

• The appliance is being disposed of and recycled

• The repair is followed by an evacuation of the appliance to the environment

• For major repairs such as, replacing the compressor, condenser or evaporator