Exam (elaborations)
EPA 608 TYPE 2 PRACTICE EXAM
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EPA 608 TYPE 2 PRACTICE EXAM
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EPA 608 TYPE 2 PRACTICE EXAMIf5a5leaking5appliance5with5a5regulated5refrigerant5is5not5going5to5be5repaired,5it5must5be;
A5retrofitted5or5retired5within535months.
B5retrofitted5or5retired5within5125months.
C5replaced5within535months.
D5replaced5within5125months.5-5ans--B
retrofitted5or5retired5within5125months.
A5high-pressure5appliance5containing52105lbs.5of5R-
407C5refrigerant5must5be5evacuated5(recovered)5to5a5level5of;
A5155inches5of5vacuum
B5105inches5of5vacuum
C545inches5of5vacuum
D505inches5of5vacuum5-5ans--B5105inches5of5vacuum
What5conditions5allow5for5a5system5to5be5opened5and5repaired5without5recovering5the5refrigerant5to5t
he5required5vacuum5level?
A5A5system5with5a5large5leak5and5internal5pressure5of505psig
B5A5system5that5is5undergoing5a5major5component5replacement
C5A5system5that5uses5a5CFC5refrigerant
D5A5system5that5has5a5non-operational5compressor5-5ans--A
A5system5with5a5large5leak5and5internal5pressure5of505psig
A5crankcase5heater5is5often5used5to5prevent5refrigerant5from5mixing5with5compressor5oil5during5periods
5of:
, ALow5ambient5temperature
B5High5ambient5temperature
C5Low5humidity
D5High5humidity5-5ans--A
Low5ambient5temperature
Leaks5must5be5repaired5on5industrial5process5and5refrigeration5units5with5a550-
pound5charge5or5greater5when5the5annualized5leak5rate5reaches5_____5or5more.
A510%
B520%
C530%
D540%5-5ans--C
30%
When5dehydrating5a5system,5it5should5be5evacuated5to5a5minimum5level5of;
A5305inches5of5Mercury
B525,0005Microns
C55005Microns
D5EPA5does5not5have5a5requirement5-5ans--C
5005Microns
All5HVAC/R5systems5must5be5protected5by5a;
A5Low-pressure5switch
B5High-pressure5switch
C5Compressor5impedance5overload
D5Pressure5relief5valve5-5ans--D
Pressure5relief5valve
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