EPA 608 Type III Exam@#$%^&*()(&^%$#@#%^&*()_)(^%$#@#%&*()_)(&^$
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100% Correct Answer Latest Versions
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A system does not have to be evacuated all the way to the required level when:
.
a) the repair is major
b) the repair is followed by an evacuation of the appliance to the environment
c) the appliance is being disposed of
d) leaks in the appliance make evacuation to the prescribed level unattainable -
- ---------- **ANSWER**: d) leaks in the appliance make evacuation to the
prescribed
level unattainable
A typical setting for the high pressure cut-out control on a recovery unit used for
evacuating the refrigerant from a low pressure chiller is: .
a) 2 psig
b) 5 psig
c) 10 psig
d) 15 psig - ----------- **ANSWER**: c) 10 psig
According to ASHRAE Guideline 3-1996, if the pressure in a system rises from 1 mm
Hg to a level above during a standing vacuum test, the system should be
checked for leaks.
a) 1.5 mmHg
,b) 2.0 mm Hg @#$%^&*()(&^%$#@#%^&*()_)(^%$#@#%&*()_)(&^$
c) 2.5 mm Hg
d) 3.0 mm Hg - ----------- **ANSWER**: c) 2.5 mm Hg
According to ASHRAE Guideline 3-1996, if the pressure in a system rises from 1 mm
Hg to above during a standard vacuum test, the system should be
checked for leaks.
1) 1.5 mm Hg
2) 2.2 mm HG
3) 2.5 mm Hg
4) 0.5 mm Hg - ----------- **ANSWER**: 3) 2.5 mm Hg
According to ASHRAE Standard 34, what is the safety classification of R-123?
a) A1
b) A2
c) B1
d) B2 - ------------**ANSWER**: c) B1
According to the EPA, there is approximately of refrigerant vapor left in an
average 350 ton R-11 chiller at 0 psig pressure once all the R-11 liquid has been
removed.
a) None.
b) 10 pounds.
c) 20 pounds.
,d) 100 pounds. - -----------**ANSWER**: d) @#$%^&*()(&^%$#@#%^&*()_)(^%$#@#%&*()_)(&^$
100 pounds.
After reaching the required recovery vacuum on a chiller, you should:
.
a) immediately disconnect the recycling or recovery equipment and open the system
for service
b) wait for at least a few minutes to se if the system pressure rises, indicating there is
still refrigerant in liquid form or in the oil
c) immediately break the vacuum with nitrogen and open the system for service
d) wait for at least a few minutes to see if the system pressure rises, indicating that
there is still refrigerant in liquid form or in the oil - ------------ **ANSWER**: d) wait
for at
least a few minutes to see if the system pressure rises, indicating that there is still
refrigerant in liquid form or in the oil
After reaching the required recovery vacuum on an appliance, you should
.
1) immediately disconnect the recycling or recovery equipment and open the system
for service
2) wait for at least a few minutes to see if the system pressure rises, indicating that
there is still refrigerant in liquid form or in the oil
3) immediately break the vacuum with nitrogen and open the system for service
4) immediately pressurize the system with nitrogen and perform a leak check -
- ---------- **ANSWER**: 2) wait for at least a few minutes to see if the system
pressure
rises, indicating that there is still refrigerant in liquid form or in the oil
After recovering the liquid refrigerant you must: .
a) recover the vapor refrigerant
, b) pressurize the system with nitrogen @#$%^&*()(&^%$#@#%^&*()_)(^%$#@#%&*()_)(&^$
c) remove the oil from the system
d) solvent-flush the entire system - ----------- **ANSWER**: a) recover the vapor
refrigerant
All EPA recovery units must .
1) recover more than one refrigerant
2) be compatible with Ester and mineral oils
3) operate on 60 cycle U.S. power
4) have a minimum 30 day warrantee
5) none of the above
6) both 1 and 2 - ----------- **ANSWER**: 5) none of the above
An oil sample should be taken when: .
a) a new filter-drier has been installed
b) there has been a compressor burnout
c) the unit is not cooling properly
d) recycled refrigerant has been added to the unit - -----------**ANSWER**: b)
there has
been a compressor burnout
ASHRAE Standard 15 - 1994 requires equipment room refrigerant sensors for what
safety group classifications?
a) A1
Questions with
100% Correct Answer Latest Versions
2025 Top Rated
A system does not have to be evacuated all the way to the required level when:
.
a) the repair is major
b) the repair is followed by an evacuation of the appliance to the environment
c) the appliance is being disposed of
d) leaks in the appliance make evacuation to the prescribed level unattainable -
- ---------- **ANSWER**: d) leaks in the appliance make evacuation to the
prescribed
level unattainable
A typical setting for the high pressure cut-out control on a recovery unit used for
evacuating the refrigerant from a low pressure chiller is: .
a) 2 psig
b) 5 psig
c) 10 psig
d) 15 psig - ----------- **ANSWER**: c) 10 psig
According to ASHRAE Guideline 3-1996, if the pressure in a system rises from 1 mm
Hg to a level above during a standing vacuum test, the system should be
checked for leaks.
a) 1.5 mmHg
,b) 2.0 mm Hg @#$%^&*()(&^%$#@#%^&*()_)(^%$#@#%&*()_)(&^$
c) 2.5 mm Hg
d) 3.0 mm Hg - ----------- **ANSWER**: c) 2.5 mm Hg
According to ASHRAE Guideline 3-1996, if the pressure in a system rises from 1 mm
Hg to above during a standard vacuum test, the system should be
checked for leaks.
1) 1.5 mm Hg
2) 2.2 mm HG
3) 2.5 mm Hg
4) 0.5 mm Hg - ----------- **ANSWER**: 3) 2.5 mm Hg
According to ASHRAE Standard 34, what is the safety classification of R-123?
a) A1
b) A2
c) B1
d) B2 - ------------**ANSWER**: c) B1
According to the EPA, there is approximately of refrigerant vapor left in an
average 350 ton R-11 chiller at 0 psig pressure once all the R-11 liquid has been
removed.
a) None.
b) 10 pounds.
c) 20 pounds.
,d) 100 pounds. - -----------**ANSWER**: d) @#$%^&*()(&^%$#@#%^&*()_)(^%$#@#%&*()_)(&^$
100 pounds.
After reaching the required recovery vacuum on a chiller, you should:
.
a) immediately disconnect the recycling or recovery equipment and open the system
for service
b) wait for at least a few minutes to se if the system pressure rises, indicating there is
still refrigerant in liquid form or in the oil
c) immediately break the vacuum with nitrogen and open the system for service
d) wait for at least a few minutes to see if the system pressure rises, indicating that
there is still refrigerant in liquid form or in the oil - ------------ **ANSWER**: d) wait
for at
least a few minutes to see if the system pressure rises, indicating that there is still
refrigerant in liquid form or in the oil
After reaching the required recovery vacuum on an appliance, you should
.
1) immediately disconnect the recycling or recovery equipment and open the system
for service
2) wait for at least a few minutes to see if the system pressure rises, indicating that
there is still refrigerant in liquid form or in the oil
3) immediately break the vacuum with nitrogen and open the system for service
4) immediately pressurize the system with nitrogen and perform a leak check -
- ---------- **ANSWER**: 2) wait for at least a few minutes to see if the system
pressure
rises, indicating that there is still refrigerant in liquid form or in the oil
After recovering the liquid refrigerant you must: .
a) recover the vapor refrigerant
, b) pressurize the system with nitrogen @#$%^&*()(&^%$#@#%^&*()_)(^%$#@#%&*()_)(&^$
c) remove the oil from the system
d) solvent-flush the entire system - ----------- **ANSWER**: a) recover the vapor
refrigerant
All EPA recovery units must .
1) recover more than one refrigerant
2) be compatible with Ester and mineral oils
3) operate on 60 cycle U.S. power
4) have a minimum 30 day warrantee
5) none of the above
6) both 1 and 2 - ----------- **ANSWER**: 5) none of the above
An oil sample should be taken when: .
a) a new filter-drier has been installed
b) there has been a compressor burnout
c) the unit is not cooling properly
d) recycled refrigerant has been added to the unit - -----------**ANSWER**: b)
there has
been a compressor burnout
ASHRAE Standard 15 - 1994 requires equipment room refrigerant sensors for what
safety group classifications?
a) A1
