Chlorofluorocarbon (CFC) refrigerants consist of: Right Ans - Chlorine,
Fluorine, Carbon
What causes a CFC molecule to break down once it reaches the upper
atmosphere? Right Ans - Ultraviolet light
The Ozone layer: Right Ans - Reduces ultraviolet radiation.
Hydrochlorofluorocarbon (HCFC) refrigerants consists of: Right Ans -
Hydrogen, Chlorine, Fluorine, Carbon.
Which of the following refrigerants causes the least amount of damage to the
ozone layer? Right Ans - R-134a
Are there any fluorocarbon refrigerants that cause no harm to stratospheric
ozone? Right Ans - Yes, HFC's
Which of the following is not a direct result of ozone depletion? Right Ans -
Increased incidence of smog
There are two environmental issues relating to refrigerants; one is ozone-
depletion and the other is: Right Ans - The effect on global warming.
Are there any other chemicals, besides refrigerants, that damage the ozone
layer? Right Ans - Yes, the Bromine in a Halon fire extinguisher system is
more damaging.
The ODP Certification obtained from another province is accepted in Ontario:
Right Ans - When it is recognized by the Ministry of the Environment
A vehicle may not be refilled with CFCs under any circumstance. However
already contained CFCs can continue to be used in the air-conditioning system
if the air conditioning system was installed in a motor vehicle on or before
what date? Right Ans - December31, 1994
, When servicing refrigeration or air conditioning equipment on Federal
property within Ontario, a service technician must: Right Ans - FoIIow both
Ontario and federal regulations.
The production, import and export of virgin HCFC refrigerants by Canada is
presently legislated to end by: Right Ans - January 1, 2020
The refill of CFCs or HCFCs for mobile air conditioner is Right Ans - Not
allowed
A person who services a refrigeration/air conditioning system that contains
or may have contained a CFC/HCFC/HFC, must conduct the leak testing in
accordance with: Right Ans - The Code of Practice for the Elimination of the
Fluorocarbon Emissions from Refrigeration and Air Conditioning Systems.
Ontario Regulation 463/10 applies to refrigerants containing: Right Ans -
Hydrofluorocarbons, Chlorofluorocarbons, and Hydrochlorofluorocarbons.
How many refrigerants are recommended to be transported in the same
recovery cylinder? Right Ans - One.
To ensure that the vacuum pump performs adequately, the ____________ vacuum
must be changed on a regular basis. Right Ans - Oil
Which of the following chemicals may be added to a refrigeration system for
the purpose of pressure testing? Right Ans - Nitrogen
Every person who owns a cylinder that has contained a refrigerant should:
Right Ans - Have the cylinder tested annually.
At a temperature of 20 C (68,F), a refrigerant container cannot be filled, with
liquid, beyond a maximum of_______________ of the internal volume: Right
Ans - 80%
Once the liquid refrigerant has been removed from a system, the remaining
vapour is to be: Right Ans - Recovered by the recovery equipment.
If a certified person's ODP card has expired, the person: Right Ans - Must
attend a full day certification program and successfully complete the exam.