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20 Cards in this Set

  • Front
  • Back
What was the date in which technicians needed to be certified in Recovery?
November 14th 1994
What date in 1993 was the more stringent levels of recovery set for recovery machines?
November 15, 1993
Hygroscopic refers to refigerant oils natural tendency to repel water. True or False?
False! Hygroscopic refers to refrigerants tendency to absorb water. That is why it is never good to leave oil open to air since air holds water.
What is the maximum penalty a technician could be fined for knowingly releasing refrigerant?
$27,500( It used to be $25,000)
What is the maximum reward that could be used from that penalty to pay someone for reporting the release?
Ozone exists in the stratosphere
How many miles up is the stratosphere?
a. 1 to 5 miles?
b. 5 to 10 miles?
c. 10 to 30 miles?
c. 10 to 30 miles.
Depletion of the ozone causes increase in eye disease and skin cancer. What else does it cause.
Think of four more.
1.crop loss
2.reduced marine life
4.increased amounts of ozone at ground level.
What atom in CFC's and HCFC's is the culprit causing the problems with the ozone?
Which refrigerants are worse for the ozone? CFC's or HCFC's?
Think of the first "C" in each as a hint.
CFC's are worse. The first C stands for chlorine in each. Since HCFC has it's first "C" appearing after the "H" then that makes chlorine less offensive in HCFC's.
Why is it that Chlorine in CFC's and HCFC's cause damage but other chlorine like pool chlorine doesn't?
Chlorine from pools and other sources are not attached to other atoms like the chlorine in CFC's and HCFC's. Since the ozone layer is so high (10 to 30 miles). regular chlorine gets disolved by rain before it can get up there.
How does chlorine separate from CFC's and HCFC's once they get up into the stratosphere (which takes years)?
Actually it is thought by some scientist that UV radiation actually helps separate the Chlorine from CFC's and HCFC's.
What is CLO?
CLO is chlorine monoxide. This is after chlorine steals an oxygen atom from ozone. Later the chlorine gets freed to continue to steal from ozone molecules.
How many ozone molecules can be destroyed by one Chlorine atom.
Up to 100,000 ozone molecules can be destroyed by one CL atom.
What does the F stand for in CFC's and HCFC's?
What does the H stand for in HCFC?
What does the last C in CFC and HCFC stand for?
What does ODP stand for?
ODP stands for Ozone Depletion Potential. All refrigerants are given an ODP number. The worst number a refrigerant can have is the number 1.
R-12 has an ODP of 1. Is R-12 a CFC or an HCFC?
R-12 is a CFC. It starts with "C"FC. That C is Chlorine which makes it worse than a HCFC that starts with "H"CFC the H being Hydrogen. R-22 is a HCFC and has an ODP of just .01 which means it is just 1/hundredths as bad for the ozone as R-12 is.
Is R-11 a CFC or HCFC?
R-11 is a CFC which is why it was replaced with R-123 which is a HCFC. R-123 has some chlorine in it but is not anywhere near as bad for the ozone as R-11
What makes R-11 and it's replacement R-123 different from most refrigerants in use today?
R-11 and it's replacement R-123 are actually Low Pressure refrigerants that need to be at vacuum levels before they will boil at cool temps.