EPA 608 609 Type II 2

Question 1

Type II certification covers servicing of which type of appliances?

Accepted Answer

High-pressure and very high-pressure appliances

Answer

Small appliances only

Answer

Low-pressure appliances only

Answer

Motor vehicle air conditioning

Question 2

Which refrigerant is a common high-pressure refrigerant covered under Type II?

Accepted Answer

R-22

Answer

R-11

Answer

R-123

Answer

R-113

Question 3

Before opening a high-pressure appliance, refrigerant must be recovered to what level for a system with a functioning compressor (using recovery equipment manufactured after Nov 15, 1993)?

Accepted Answer

10 inches of mercury vacuum

Answer

0 psig

Answer

0 inches of mercury

Answer

4 inches of mercury vacuum

Question 4

What is the required evacuation level for a high-pressure appliance normally containing 200 pounds or more of refrigerant if the compressor is not operating?

Accepted Answer

15 inches Hg vacuum

Answer

0 inches Hg vacuum

Answer

4 inches Hg vacuum

Answer

25 inches Hg vacuum

Question 5

A self-contained recovery device for high-pressure refrigerant uses its own what to remove refrigerant?

Accepted Answer

Its own compressor or pump

Answer

The appliance's compressor

Answer

Gravity only

Answer

Nitrogen pressure

Question 6

Which leak detection method is most commonly used for high-pressure refrigerant systems?

Accepted Answer

Electronic leak detector

Answer

Bubble soap test only

Answer

Ultrasonic only

Answer

Visual inspection only

Question 7

Repeated opening and closing of an appliance's service valves while recovering refrigerant can cause what problem?

Accepted Answer

Refrigerant loss and air contamination

Answer

Faster recovery

Answer

Improved oil return

Answer

Lower cost

Answer

Better vacuum