18 - CORRECT ANSWER: 18

EPA 608 Core Test Sample Questions Latest Update - 350 Questions and 100% Verified Correct Answers Guaranteed A+

____ of stratospheric chlorine is contribution of from natural sources such as volcano

eruptions and others:

40% 35% 30%

18% - CORRECT ANSWER: 18%

____ recovery is the fastest and takes up less volume per pound of refrigerant to

recover:

Gas Either Liquid and Gas

Liquid - CORRECT ANSWER: Liquid

_____ breaks down the CFCs and frees the chlorine ion:

X-radiation Infrared radiation Ultraviolet radiation

Gamma radiation - CORRECT ANSWER: Ultraviolet radiation

_____ is the amount of heat required to change the refrigerant from a liquid to a gas: 1 / 4

Enthalpy Latent heat Sensible heat

Total heat - CORRECT ANSWER: Latent heat

_____ is the reaction of refrigerant with water:

Hydrolysis Electrolysis

All the options are correct - CORRECT ANSWER: Hydrolysis

_____ is used to the push-pull method of refrigeration:

Triple-valve recovery tank Dual-valve recovery tank

Quadruple recovery tank - CORRECT ANSWER: Dual-valve recovery tank

______ nitrogen is used to pressurize the system:

Gaseous Either Liquid or Gaseous

Liquid - CORRECT ANSWER: Gaseous

______ recovery equipment can only be used on appliances with 15 pounds or less of

refrigerant:

System-dependent Self-contained - CORRECT ANSWER: System-dependent 2 / 4

______ refrigerant cannot be transferred to another owner:

Reclaimed

Recycled - CORRECT ANSWER: Recycled

______ which formed at the stratosphere is unstable and strips a free oxygen atom and then releases the chlorine ion which continue the chain reaction of destroying ozone

molecules:

Chlorine dioxide Chlorine trioxide Chlorine monoxide

Chlorine oxide - CORRECT ANSWER: Chlorine monoxide

_______ of stratospheric chlorine comes from ozone-depleting substances:

51% 82% 18%

72% - CORRECT ANSWER: 82%

A ______ drier should be installed to trap any debris that may damage the compressor:

discharge line filter suction line filter vapor line filter

liquid line filter - CORRECT ANSWER: suction line filter

• / 4

A cylinder label must contain what type of information about the refrigerant?

• Weight of refrigerant
• Type and amount of refrigerant
• Pressure of cylinder

d. None of the above - CORRECT ANSWER: b. Type and amount of refrigerant

A recovery cylinder can maximum store _____ refrigerants:

3 2 1

4 - CORRECT ANSWER: 1

A vacuum test allows air and moisture to enter the system if there is a leak:

True

False - CORRECT ANSWER: True

A vacuum test could actually hide a leak:

False

True - CORRECT ANSWER: True

A violation of the Clean Air Act, including improper record keeping, is subject to a

penalty of a fine of up to _____ per day per violation:

$37,500

$24,000

$35,000

$40,000 - CORRECT ANSWER: $37,500

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