Core
What spray should be used to remove ice from sight glass or viewing glasses
What is an alcohol spray
EPA definition of a small appliance is?
What is a fully charged, and hermetically sealed system containing 5 pounds or less of refrigerant
When suspecting a system of a refrigerant leak, what should be the first thing you should look for?
What are traces of oil
What should be worn when working with liquid refrigerant for low-pressure systems
What is Gloves , & Safety goggles
when transporting cylinders containing used refrigeration, a _ classification tag and label must be attached to the cylinders.
what is DOT
R744, carbon dioxide co2,is a very high pressure refrigerant and generally does not need to be_
what is Recovered
system containing 1000 LBS. or more of R-22 that has exceeded the applicable leak rate threshold, must be inspected for leaks every 3 months until verification that leak rate has not been exceeded for_
what is one year after repair.
What is the burst pressure on a low-pressure system in psig?
What is 15 psig
A single chlorine atom can destroy up to
What is 100,000 ozone molecules.
When using a passive system-dependent recovery process, you should access both the high side and low side of the system for the refrigerant recovery i
What is the systems compressor does not run
The equipment owner or operator has 30 days to repair the appliance so that it leaks below the threshold limit and conduct the initial verification test unless EPA grants. _
What is additional time
:If a chiller with 200 pounds of ozone depleting refrigerant has passed the initial verification leak test,how many days after should a follow up verification test be conducted?
What is 10 days.
How much will you be fined for violating the Clean air act,including knowingly releasing non-exempt refrigerant from appliances.
What is 44,539 per day
What must be done with the refrigerant that is vented off the top of the charging cylinder during recovery.
What is must be recovered
What tool or table is commonly referenced for refrigerant safety classifications?
What is Ashrae refrigerant safety classifications (tables) are referenced to determine toxicity/flammability characteristics of refrigerants.
What level should a low pressure appliance be evacuated or recovered to, before disposing of it?
What is 25 mm of HG absolute
How long can a single chlorine atom last in the atmosphere?
120 years
If recovery equipment is used on a small appliance whose compressor does not run, what is one rule/precaution?
What is Use approved recovery equipment and follow the equipment specific procedures for devices whose compressors will not operate during recovery
How often must leak checks be done on units exceeding maximum allowable leak rate that contain 50 lbs or more of refrigerant
What is Once per calendar year until the owner/operator can demonstrate through the leak rate calculations that the leak has not exceeded 10% for one year
Technicians working on a Type III (low-pressure) chiller that is suspected of having a major leak must pressurize the system to what pressure for a leak test?
What is A maximum of 10 psig