Type 1-1
When using nitrogen, the nitrogen tank should always be equipped with a:
What is a regulator
A compressor burnout has likely occurred when
A pungent odor is detected during a system recovery and or repair
How often does the CFC certification need to be renewed
There is no expiration date
After November 15, 1993 recovery from small appliances must reach what levels
What is recover 90% when the compressor is operating a 4 inch vacuum
When is it essential to take extra measures to help release trapped refrigerant from the compressor oil
What is a passive system dependent recovery with a non operating compressor
Is an MVAC with three pounds of R12 a Type I appliance?
No
When is it necessary to heat and strike the compressor with a rubber mallet
What is recovering refrigerant into a non pressurized container from a refrigerator with an inoperative compressor.
Low loss fitting serve to do what
What is prevent refrigerant loss from hoses
Small amount of refrigerant have no odor, when you smell a pungent odor what has likely occurred
What is compressor burn out.
True or False Ammonia, Hydrogen and water can all be recovered with current EPA approved devices.
What is false
R-12 must be recovered with what type of equipment
What is recovered with equipment regulated by the EPA under section 608
When servicing a small appliance with a leak
It is not mandatory to repair the leak but do so whenever possible
A shipping label used for refrigerant it is necessary to
What is follow all proper labeling and DOT protocol
True or False: R-410A, R-1241 and R-141b can all be used as a replacement for R-22 in small appliances
What is false
Name some EPA equipment recommended for safe working practices
What is wearing safety glasses and butyl-lined gloves when connecting/disconnecting hoses or working with compressed gas
When recovering refrigerant from a frost free refrigerator you should
What is turn on the defrost heat to vaporize any trapped liquid
If a large leak or refrigerant occurs in an enclosed in an enclosed area and no self-contained self contain breathing apparatus is available, what should the tech do
What is vacate and ventilate the spill area.
R-23, R-13, R-505 are all
What is very high pressure appliances above 355 psia
Recover devices manufactured before November 15, 1993 must
What is recover 80%
At high temperatures R-12 and R-22 can decompose to form
What is a phosgene gas
The sale of CFC & HCFC refrigerants is restricted to whom
What is restricted to EPA technicians certified to recover refrigerant.
Who is able to purchase refrigerant?
What is EPA fully certified technicians
When R-500 is recovered from an appliance
What is it must be recovered into its own recovery vessel, unless a cylinder that already contains some.