EPA608 CERTIFICATION EXAM
WITH ALL CORRECT ANSWERS
VERIFIED AND GRADED A+
All refrigeration systems containing more than 50 lbs. of refrigerant must be
repaired when the annual leak rate exceeds___?
35%
The most efficient method of leak checking a charged low-pressure system is
to use?
Controlled hot water or heater blankets.
Systems with open drive compressors are prone to leak where?
At the shaft seal.
What does ASHRAE standard 15 require?
A refrigerant monitor that will sound and alarm and automatically start a
ventilation system in equipment rooms before the refrigerant concentration
reaches the TLV-TWA.
TLV-TWA
, Threshold Limit Value, Time Weighted Average
A-1 Group Refrigerants only require what?
Oxygen Deprivation Sensor
All "B" rated refrigerants require what?
"Refrigerant Specific" Mechanical Room Sensor.
What are Cooling Towers?
They are heat removal devices used to transfer process waste heat to the
atmosphere.
What is the maximum test pressure to use for pressurizing Type III centrifugal
systems with nitrogen?
10 psig
Enough vapor has entered the system and you may begin charging liquid
refrigerant when the refrigerant saturation temperature increases to?
36F
What date was the sale of CFC's & HCFC's restricted to technicians certified
in refrigerant recovery?
WITH ALL CORRECT ANSWERS
VERIFIED AND GRADED A+
All refrigeration systems containing more than 50 lbs. of refrigerant must be
repaired when the annual leak rate exceeds___?
35%
The most efficient method of leak checking a charged low-pressure system is
to use?
Controlled hot water or heater blankets.
Systems with open drive compressors are prone to leak where?
At the shaft seal.
What does ASHRAE standard 15 require?
A refrigerant monitor that will sound and alarm and automatically start a
ventilation system in equipment rooms before the refrigerant concentration
reaches the TLV-TWA.
TLV-TWA
, Threshold Limit Value, Time Weighted Average
A-1 Group Refrigerants only require what?
Oxygen Deprivation Sensor
All "B" rated refrigerants require what?
"Refrigerant Specific" Mechanical Room Sensor.
What are Cooling Towers?
They are heat removal devices used to transfer process waste heat to the
atmosphere.
What is the maximum test pressure to use for pressurizing Type III centrifugal
systems with nitrogen?
10 psig
Enough vapor has entered the system and you may begin charging liquid
refrigerant when the refrigerant saturation temperature increases to?
36F
What date was the sale of CFC's & HCFC's restricted to technicians certified
in refrigerant recovery?
