Ammonia Exam Questions and
Answers (Latest Update 2026)
1 pound of ammonia absorbs -
correct answer ✅561 BTUs
1% of air concentration equals -
correct answer ✅10,000 ppm
PEL for ammonia -
correct answer ✅Permissible exposure limit 50 ppm need a
respirator
IDLH for ammonia -
correct answer ✅Immediately dangerous to life and health 300
ppm must use SCBA
Trapped liquid will rise how much pressure per degree -
correct answer ✅100 to 150 psi page 83
Liquid ammonia expands what ratio when changing from liquid to
vapor -
correct answer ✅768 to 1
,Ammonia Exam Questions and
Answers (Latest Update 2026)
Ammonia absorption rate into water -
correct answer ✅1300 per 1 gallon
What are the four steps of refrigeration -
correct answer ✅compressor evaporator condenser metering
device
Compressor -
correct answer ✅Reduce volume
Evaporator -
correct answer ✅Liquid to gas
Condenser -
correct answer ✅Gas to liquid
Metering device -
correct answer ✅Controls flow
What vapor carries -
correct answer ✅Heat
, Ammonia Exam Questions and
Answers (Latest Update 2026)
Leak coming from non-insulated pipe -
correct answer ✅Compressor is your enemy
Leak coming from insulated pipe -
correct answer ✅Compressor is your friend
Arete is a measure of something to a fixed units such as time what
is tonnage -
correct answer ✅Heat transfer in BTUs per time
A home air conditioner is rated to remove 48,000 BTUs in one hour
what is its tonnage rating -
correct answer ✅4 ton because 12,000 BTUs in one hour equals 1
ton
Compressors pump vapor only and they are sized by what
requirement -
correct answer ✅CFM
What is not a secondary coolant -
correct answer ✅R-134a
Answers (Latest Update 2026)
1 pound of ammonia absorbs -
correct answer ✅561 BTUs
1% of air concentration equals -
correct answer ✅10,000 ppm
PEL for ammonia -
correct answer ✅Permissible exposure limit 50 ppm need a
respirator
IDLH for ammonia -
correct answer ✅Immediately dangerous to life and health 300
ppm must use SCBA
Trapped liquid will rise how much pressure per degree -
correct answer ✅100 to 150 psi page 83
Liquid ammonia expands what ratio when changing from liquid to
vapor -
correct answer ✅768 to 1
,Ammonia Exam Questions and
Answers (Latest Update 2026)
Ammonia absorption rate into water -
correct answer ✅1300 per 1 gallon
What are the four steps of refrigeration -
correct answer ✅compressor evaporator condenser metering
device
Compressor -
correct answer ✅Reduce volume
Evaporator -
correct answer ✅Liquid to gas
Condenser -
correct answer ✅Gas to liquid
Metering device -
correct answer ✅Controls flow
What vapor carries -
correct answer ✅Heat
, Ammonia Exam Questions and
Answers (Latest Update 2026)
Leak coming from non-insulated pipe -
correct answer ✅Compressor is your enemy
Leak coming from insulated pipe -
correct answer ✅Compressor is your friend
Arete is a measure of something to a fixed units such as time what
is tonnage -
correct answer ✅Heat transfer in BTUs per time
A home air conditioner is rated to remove 48,000 BTUs in one hour
what is its tonnage rating -
correct answer ✅4 ton because 12,000 BTUs in one hour equals 1
ton
Compressors pump vapor only and they are sized by what
requirement -
correct answer ✅CFM
What is not a secondary coolant -
correct answer ✅R-134a
