Deck 9: Refrigerant and Oil Chemistry and Managementrecovery, Recycling, Reclaiming, and Retrofitting

Question 1

How many chlorine atoms does it take to destroy 100,000 ozone molecules in the stratosphere?

A) 1,
B) 10,
C) 100,
D) 1,000,

Answer 1

A

Question 2

A refrigerant reclaimed from a system may be charged back into the system from which it came.

Answer 2

False

Question 3

Which type of refrigerant has the highest Ozone Depletion Potential (ODP)?

A) HFC.
B) HCFC.
C) CFC.
D) All have the same ODP.

Answer 3

C

Question 4

Which of the following refrigerants is considered an HFC-type of refrigerant?

A) R-134a.
B) R-12.
C) R-22.
D) R-11.

Question 5

The abbreviation for refrigerants containing fluorine, carbon, and hydrogen is ____.

A) HFC
B) HCFC
C) CFC
D) HFAC

Question 6

The DOT-approved cylinder used for recovering refrigerant is gray and yellow.

Question 7

To clean refrigerant by the use of filter dryers is called ____.

A) recovery
B) renew
C) reclaim
D) recycle

Question 8

Mechanical refrigerant recovery equipment must meet specifications established by the 1993 AHRI 740 standard.

Question 9

As of July 1, 1992, it is illegal to intentionally vent ____ refrigerants into the atmosphere .

A) CFC
B) HCFC
C) Polyvinylether (PVE)
D) Both a and b.

Question 10

To remove the refrigerant from a system without any testing or processing and to be put back into the same system is called ____.

A) recovery
B) renew
C) reclaim
D) recycle

Question 11

Which of the following refrigerants is a CFC-type refrigerant?

A) R-22.
B) R-123.
C) R-134a.
D) R-12.

Question 12

To process refrigerant to new product specifications is called ____.

A) recovery
B) renew
C) reclaim
D) recycle

Question 13

Ozone is produced mainly by a process called ____________________.

Question 14

The abbreviation for refrigerants containing chlorine, fluorine, carbon, and hydrogen is ____.

A) HFC
B) HCFC
C) CFC
D) HFAC

Question 15

When a technician works for a company in which the technician does not have a financial interest, the technician does not have to be certified.

Question 16

Which of the following is an example of an HCFC refrigerant?

A) R-12.
B) R-22.
C) R-32.
D) R-134a.

Question 17

Refrigerants that have a low Ozone Depletion Potential (ODP) will, in turn, have a high "Total Equivalent Warming Impact" (TEWI).

Question 18

The _____ takes into consideration both the direct and indirect global warming effects of refrigerants.

A) GWI
B) GWP
C) ODP
D) TEWI

Question 19

The abbreviation for refrigerants containing chlorine, fluorine, and carbon is ____.

A) HFC
B) HCFC
C) CFC
D) HFAC

Question 20

Refrigerants that are made up of two or more liquids are called ____.

A) fluorocarbons
B) azeotropes
C) chlorofluorocarbons
D) isotopes

Question 21

When did it become illegal to "intentionally" vent CFC refrigerants to the atmosphere? Give the month, day, and year.

Question 22

The fastest way to remove refrigerant from a system is to take it out in the ____________________ state.

Question 23

The fine for venting refrigerant into the atmosphere can be as high as $____________________ per day.

Question 24

Refrigerants that damage the ozone layer contain an element called ____________________.

Question 25

The small amount of refrigerant released when removing gauge hoses from the system is called ____________________.

Question 26

Why is stratospheric ozone so important to our environment?

Question 27

On what does universal EPA certification allow a service technician to work?

Question 28

On what does Type I EPA certification allow a service technician to work ?

Question 29

What is tropospheric ozone and why are we not concerned with protecting it?

Question 30

On what does Type III EPA certification allow a service technician to work?

Question 31

In refrigerant blends, when does fractionation occur?

Question 32

What is the difference between an azeotropic mixture and a near-azeotropic mixture?

Question 33

How are near-azeotropic blends identified?

Question 34

On what does a Type II EPA certification allow a service technician to work?

Question 35

The trapping of the Earth's heat in the atmosphere which is causing global warming is called the ____________________.

Question 36

When did it become illegal to "intentionally" vent HFC refrigerants to the atmosphere? Give the month, day, and year.

Question 37

Production of CFC refrigerants became illegal on January 1, ____________________.

Question 38

The DOT-approved cylinder in which refrigerant may be recovered has a mechanism for shutting the recovery system off when it reaches approximately ____________________% full.

Question 39

HCFC-based blends work best with ____________________ lubricants, while HFC-based blends work best with ester lubricants.