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Hvac > EPA Core > Flashcards

EPA Core Flashcards

1
Q

On what date is the sale of CFC and HCFC refrigerants is restricted to certified technicians.

A) November 15 1995
B) July 1 1992
C) November 14 1994
D) November 15 1993

A

C) November 14 1994

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2
Q

On what date did it become a violation of Section 608 to: Vent CFC’s or HCFC’s

A) November 15 1995
B) July 1 1992
C) November 14 1994
D) November 15 1993

A

B) July 1 1992

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3
Q

On what date did it become a violation of Section 608 to: Vent HFC’s

A) November 15 1995
B) July 1 1992
C) November 14 1994
D) November 15 1993

A

A) November 15 1995

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4
Q

The layer of the Stratosphere that protects us from excessive Ultra Violet radiation is comprised of;

A) Nitrogen
B) Chlorine monoxide
C) Ozone
D) Oxygen

A

C) ozone

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5
Q

The molecule found in CFC’s and HCFC’s that depletes ozone is:

A) fluorine
B) hydrogen
C) carbon
D) chlorine

A

D) chlorine

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6
Q

Which type of refrigerant contains no chlorine?

A HCFC’s
B HCFC blends
C HFC’s
D CFC’s

A

C HFC’s

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7
Q

An ozone molecule contains;

A one oxygen atom
B two oxygen atoms
C three oxygen atoms
D four oxygen atoms

A

C three oxygen atoms

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8
Q

The compressor….

A changes a high pressure vapor to a high pressure liquid
B changes a low pressure vapor to a high pressure vapor
C changes a high pressure liquid to a low pressure liquid
D changes a low pressure liquid to a low pressure vapor

A

B changes a low pressure vapor to a high pressure vapor

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9
Q

HCFC’s contain

A)Chlorine ,Fluorine, and Carbon

B)Hydrogen, Chlorine, Fluorine, and Carbon

C)Hydrogen, Fluorine, and Carbon

D)Hydrogen, Fluorine, and Olefin

A

B)Hydrogen, Chlorine, Fluorine, and Carbon

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10
Q

Which of the following has the highest Ozone Depletion Potential?

A)HFO’s

B)HCFC’s

C)HFC’s

D)CFC’s

A

D)CFC’s

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11
Q

Technicians have been required to be certified to service, maintain, or dispose of appliances containing regulated refrigerants since.

A)July 1, 1992

B)May 1, 1993

C)November 14, 1994

D)November 15, 1995

A

C)November 14, 1994

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12
Q

It has been a violation of EPA Section 608 regulations to vent CFC’s or HCFC’s since;

A)July 1, 1992

B)May 1, 1993

C)November 14, 1994

D)November 15, 1995

A

A)July 1, 1992

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13
Q

It has been a violation of EPA Section 608 regulations to vent HFC’s since;

A)July 1, 1992

B)May 1, 1993

C)November 14, 1994

D)November 15, 1995

A

D)November 15, 1995

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14
Q

Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the proper disposal method for;

A)Recovery cylinders

B)One pound cans

C)Disposable cylinders

D)Accumulator cylinders

A

C)Disposable cylinders

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15
Q

Which international agreement (Treaty) regulated the production and use of CFCs, HCFC’s, halons, methyl chloroform and carbon tetrachloride?

A)Kyoto Treaty

B)Montreal Protocol

C)Council of Nicaea

D)Treaty of Ghent

A

B)Montreal Protocol

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16
Q

Clean refrigerant for reuse by separating the oil from the refrigerant and removing moisture from the refrigerant by passing it through one or more filter driers, is the definition of;

A)Recover
B)Reclaim
C)Reuse
D)Recycle

17
Q

To process refrigerant to a level equal to new (virgin) product specifications as determined by chemical analysis defines;

A) Recovery

B) Reclaiming

C) Reuse

D) Recycle

A

B) Reclaiming

18
Q

HFC’s ________;

A)will not damage stratospheric ozone

B)will damage stratospheric ozone

C)will deplete stratospheric ozone

D)are only harmful to ground level ozone

A

A)will not damage stratospheric ozone

19
Q

The metering device…
A changes a high pressure vapor to a high pressure liquid
B changes a low pressure vapor to a low pressure liquid
C changes a high pressure liquid to a low pressure liquid
D changes a low pressure liquid to a low pressure vapor

A

C changes a high pressure liquid to a low pressure liquid

20
Q

The condenser…
A changes a high pressure vapor to a high pressure liquid
B changes a low pressure vapor to a low pressure liquid
C changes a high pressure liquid to a low pressure liquid
D changes a low pressure liquid to a low pressure vapor

A

A changes a high pressure vapor to a high pressure liquid

21
Q

The evaporator…
A changes a high pressure vapor to a high pressure liquid
B changes a low pressure vapor to a low pressure liquid
C changes a high pressure liquid to a low pressure liquid
D changes a low pressure liquid to a low pressure vapor

A

D changes a low pressure liquid to a low pressure vapor

22
Q 
When a system is in full vacuum...
A It is dangerous to charge the system
B Never use a micron gauge
C Never energize the compressor
D No precautions are required
A

C Never energize the compressor

23
Q 
The two types of recovery systems are...
A System dependent and passive
B System dependent and self contained
C Self contained and active
D Recycling and reclaiming
A

B System dependent and self contained

24
Q 
Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs)
A both contain hydrogen
B are explosive
C are ODP substances
D will be completely phased-out in 2030
A

C are ODP substances

25
Q

When chlorine monoxide is found in the stratosphere, it indicates that;
A we are well protected from harmful UV radiation
B additional ozone is being created
C harmful nitrous oxide is also present
D the ozone layer is being depleted

A

D the ozone layer is being depleted

26
Q

Crop loss, eye disease, and skin cancer have been attributed to;

A) Depletion of Stratospheric nitrogen
B) Depletion of Stratospheric chlorine monoxide
C) Depletion of Stratospheric ozone
D) Depletion of Stratospheric oxygen

A

C) Depletion of Stratospheric ozone

27
Q

How many chlorine atoms does it take to destroy 1,000,000 (one million) ozone molecules?

A)1

B)10

C)100

D)1,000

28
Q

The chlorine in CFC’s will;

A) dissolve in water

B) not dissolve in water

C) rain out of the atmosphere

D) is heavier than air and cannot rise to the stratosphere

A

B) not dissolve in water

Hvac (18 decks)

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