A2L EXAM | 130 QUESTIONS | WITH
COMPLETE SOLUTIONS!!
components?
CO2 refrigerant
, Safety to use with H2O Safety to use with high-pressure
refrigerant fully enclosed refrigerants exposed
Don't know?
2 of 130
Term
What kind of environment should a jobsite have to prevent hazards
when working with A2Ls?
Give this one a try later!
It must be poorly lit, no safety perimeter, grounding optional, open flames
allowed
It must be confined with high humidity, no lockout procedures, ignition sources
encouraged
It must be well ventilated proper lockout tag out procedures designate a
safe perimeter around work area system properly grounded, and no
ignition sources
It must be enclosed with limited ventilation, no grounding required, ignition
sources permitted
Don't know?
3 of 130
,Term
When using a flammable refrigerant as a trace gas for leak detection,
the amount must not exceed?
Give this one a try later!
10% of the lower flammability limit 75% of the maximum flammability
(lfl) of the refrigerant. range of the refrigerant.
25% of the lower flammability 50% of the upper flammability limit
limit (LFL) of the refrigerant. (ufl) of the refrigerant.
Don't know?
4 of 130
Term
Hydrogen fluoride (HF) can form when?
Give this one a try later!
Any fluorine-containing refrigerant Any fluorine-containing refrigerant
is exposed to high humidity. undergoes rapid cooling.
, Any fluorine-containing
refrigerant undergoes
Any fluorine-containing refrigerant
complete or incomplete
is mixed with nitrogen.
combustion or thermal
decomposition.
Don't know?
5 of 130
Term
A complex process that cleans, filters, and tests a refrigerant to meet
the "like-new" purity level specified in AHRI Standard 700 is?
Give this one a try later!
Recovery Reforestation
Recycling Reclamation
Don't know?
6 of 130
Term
Why is "label matching" important during A2L system installation?
Give this one a try later!
COMPLETE SOLUTIONS!!
components?
CO2 refrigerant
, Safety to use with H2O Safety to use with high-pressure
refrigerant fully enclosed refrigerants exposed
Don't know?
2 of 130
Term
What kind of environment should a jobsite have to prevent hazards
when working with A2Ls?
Give this one a try later!
It must be poorly lit, no safety perimeter, grounding optional, open flames
allowed
It must be confined with high humidity, no lockout procedures, ignition sources
encouraged
It must be well ventilated proper lockout tag out procedures designate a
safe perimeter around work area system properly grounded, and no
ignition sources
It must be enclosed with limited ventilation, no grounding required, ignition
sources permitted
Don't know?
3 of 130
,Term
When using a flammable refrigerant as a trace gas for leak detection,
the amount must not exceed?
Give this one a try later!
10% of the lower flammability limit 75% of the maximum flammability
(lfl) of the refrigerant. range of the refrigerant.
25% of the lower flammability 50% of the upper flammability limit
limit (LFL) of the refrigerant. (ufl) of the refrigerant.
Don't know?
4 of 130
Term
Hydrogen fluoride (HF) can form when?
Give this one a try later!
Any fluorine-containing refrigerant Any fluorine-containing refrigerant
is exposed to high humidity. undergoes rapid cooling.
, Any fluorine-containing
refrigerant undergoes
Any fluorine-containing refrigerant
complete or incomplete
is mixed with nitrogen.
combustion or thermal
decomposition.
Don't know?
5 of 130
Term
A complex process that cleans, filters, and tests a refrigerant to meet
the "like-new" purity level specified in AHRI Standard 700 is?
Give this one a try later!
Recovery Reforestation
Recycling Reclamation
Don't know?
6 of 130
Term
Why is "label matching" important during A2L system installation?
Give this one a try later!
