Is Freon Heavier Than Air

Core Questions

1.	The use and release of CFCs and HCFCs has a far reaching effect on ________.
		A. the stratosphere
		B. our transportation
		C. heating equipment
		D. our h2o supply
The introduction of CFCs and HCFCs has dramatically inverse our lifestyles. Fiddling did we know that the use and release of these compounds into the atmosphere would have far reaching effects on our environment. The greatest effect is in the stratosphere, far removed from the Earth's surface. Incorrect answer. Please cull some other answer.

two.	Crop loss, eye affliction 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
One of the most serious results from the thinning and damaging of the stratospheric ozone layer is an increase in the rates of skin cancer in humans. (Page 6 ESCO EPA ninth V2 Edition Prep Manual) Incorrect reply. Delight choose another respond.

3.	The chlorine in CFCs and HCFCs:
		A. will dissolve in water.
		B. volition not dissolve in h2o.
		C. will rain out of the atmosphere.
		D. is heavier than air and cannot rise to the stratosphere.
The chlorine in CFCs and HCFCs volition neither deliquesce in h2o nor break down into compounds that dissolve in water, so they do not rain out of the atmosphere. (Folio half dozen ESCO EPA 9th V2 Edition Prep Manual) Wrong answer. Please cull another answer.

4.	Which of the following refrigerant has a GWP of "1"?
		A. R-22
		B. R-134a
		C. R-410A
		D. R-1233zd
R-1233zd is an HFO with a Global Warming Potential of i. (Page 6 and 15 ESCO EPA 9TH V2 Edition Prep Manual) Incorrect respond. Delight choose another answer.

5.	A refrigerant cylinder designed to concur recovered refrigerant has a:
		A. yellow body and grey top.
		B. grey body and yellowish elevation.
		C. green trunk and yellowish meridian.
		D. orangish body and grey acme.
Canonical refrigerant recovery cylinders can easily be identified by their colors: yellow tops and grey bodies. (Page 14 ESCO EPA 9TH V2 Edition Prep Manual) Incorrect answer. Please cull another answer.

half-dozen.	Before shipping any used refrigerant cylinders, what standards should exist checked?
		A. Department of Transportation
		B. The Meaning New Alternatives Policy (SNAP)
		C. Underwriters Laboratories
		D. All of the above
When transporting cylinders containing used refrigerant, a Department of Transportation (DOT) classification tag and characterization must be attached to the cylinders. (Page fourteen ESCO EPA ninth V2 Edition Prep Manual) Incorrect answer. Please choose another answer.

Type I Questions

7.	Technicians who perform sealed-system service on minor appliances must have:
		A. Type I, II, or 3 certification.
		B. Type I or Universal certification
		C. Type Ii certification
		D. A Universal 609 certification
Persons handling refrigerant during maintenance, service or repair of minor appliances must be certified as either a Type I Technician or as a Universal Technician. (Page16 ESCO EPA ninth V2 Edition Prep Manual) Incorrect answer. Delight cull another answer.

viii.	A small appliance is defined by the EPA every bit:
		A. Appliances charged, and hermetically sealed in a factory that comprise eight lbs or less of refrigerant.
		B. Appliances charged, and hermetically sealed in a mill that contain 10 lbs or less of refrigerant.
		C. Appliances with internal volumes no greater than iii cubic feet.
		D. Appliances manufactured, charged, and hermetically sealed in a manufacturing plant that incorporate 5 lbs. or less of refrigerant.
The EPA definition of a small appliance includes products manufactured, charged, and hermetically sealed in a mill with five pounds of refrigerant or less. (Page16 ESCO EPA 9TH V2 Edition Prep Manual) Incorrect answer. Delight choose another reply.

ix.	Recovery equipment must be:
		A. CSA approved.
		B. Certified past an EPA-approved testing laboratory.
		C. Used on all equipment manufactured afterward July 1, 1995.
		D. Used on all equipment manufactured after November 15, 1995.
Recovery equipment used during the maintenance, service, or repair of small appliances that use CFCs, HCFCs, and HFCs must be certified past an EPA-approved laboratory.  (Page16 ESCO EPA 9th V2 Edition Prep Manual) Incorrect answer. Please choose some other answer.

ten.	When using a organization-dependent recovery system on an appliance that has an operating compressor, the technician should;
		A. Run the compressor and recover from the low side of the organisation merely.
		B. Install access fittings on both the high and low-pressure level sides of the organisation.
		C. Run the compressor and recover from the high side of the system only.
		D. Never allow the refrigerant to go to the high side of the system.
An appliance with an operating compressor and completely restricted capillary tube or metering device requires simply 1 admission valve on the high side of the system. (Folio 17 & 18 ESCO EPA ninth V2 Edition Prep Manual) Incorrect answer. Delight choose another answer.

11.	After the refrigerant has been recovered, which of the following should be used to affluent the system?
		A. R-22
		B. Compressed air
		C. Nitrogen
		D. H2o
When nitrogen is used to pressurize or accident debris out of the organisation, the nitrogen may be vented to the ambient air. (Page 18 ESCO EPA 9th V2 Edition Prep Manual) Incorrect respond. Delight cull another answer.

12.	When a arrangement is in deep vacuum, yous should never:
		A. energize the compressor.
		B. use a micron judge.
		C. add together refrigerant to the system.
		D. energize organization fans and blowers.
You should never energize the compressor. A hermetic compressor's motor winding could be damaged if energized when under a deep vacuum. (Folio 22 ESCO EPA ninth V2 Edition Prep Transmission) Incorrect answer. Please choose another answer.

13.	Which HC refrigerant is allowed for utilise in new domestic pocket-size appliances?
		A. R-404A
		B. R-600a
		C. R-410a
		D. R-717
Hydrocarbon (HC) R-600a is an approved refrigerant for new household refrigerators, freezers, and combination refrigeration/freezers. (Page 16 ESCO EPA ninth V2 Edition Prep Manual) Incorrect answer. Please choose another answer.

xiv.	The EPA requirement for repairing leaks on modest appliances states that:
		A. Leaks should be repaired whenever possible.
		B. All leaks must be repaired immediately.
		C. All leaks must be repaired within xxx days.
		D. Leaks should not be repaired.
The EPA does not require leak repair for small appliances, merely leaks should exist repaired whenever possible. (Page 17 ESCO EPA ninth V2 Edition Prep Manual) Wrong reply. Please choose another reply.

Type II Questions

15.	Leaks must be repaired on industrial process and refrigeration units with a l-pound accuse or greater when the annualized leak rate reaches _____ or more.
		A. 10%
		B. xx%
		C. 30%
		D. twoscore%
EPA regulations require that all commercial and industrial process refrigeration containing more than 50 lbs. of refrigerant must be repaired when the almanac leak rate exceeds 30%. (Page19 ESCO EPA 9TH V2 Edition Prep Manual) Wrong answer. Delight choose another answer.

xvi.	EPA regulations state that removal of which component constitutes a "major repair"?
		A. Pressure switch
		B. Compressor
		C. Liquid line drier
		D. Evaporator fan motor
Under EPA regulations, a "major repair" means whatever maintenance, service or repair involving the removal of any or all of the post-obit components: compressor, condenser, evaporator or an auxiliary estrus exchanger coil. (Folio 23 ESCO EPA 9th V2 Edition Prep Manual) Wrong answer. Please cull another answer.

17.	A high-pressure level apparatus containing less than 200 lbs. of an HCFC or HFC refrigerant must be evacuated (recovered) to a level of:
		A. xv inches of vacuum
		B. 10 inches of vacuum
		C. four inches of vacuum
		D. 0 inches of vacuum
A high-pressure level appliance containing less than 200 lbs. of an HCFC or HFC refrigerant must be evacuated (recovered) to a level of 0 inches of vacuum. (Folio 20 ESCO EPA 9TH V2 Edition Prep Transmission) Incorrect answer. Please cull another reply.

18.	A loftier-pressure appliance containing 210 lbs. of R-407C refrigerant must exist evacuated (recovered) to a level of;
		A. 15 inches of vacuum
		B. 10 inches of vacuum
		C. 4 inches of vacuum
		D. 0 inches of vacuum
A high-force per unit area apparatus containing 210 lbs. of R-407C refrigerant must be evacuated (recovered) to a level of 10 inches of vacuum. (Page 20 ESCO EPA ninth V2 Edition Prep Manual) Incorrect answer. Delight choose another answer.

19.	If a leaking appliance with a regulated refrigerant is not going to be repaired, it must be:
		A. retrofitted or retired within 3 months.
		B. retrofitted or retired within 12 months.
		C. replaced inside iii months.
		D. replaced within 12 months.
Blazon Two appliances that volition not be repaired must exist retrofitted or retired in 12 months. If the appliance is using an exempt refrigerant and then the possessor has eighteen months to retire the leaking system. (Folio twenty ESCO EPA ninth V2 Edition Prep Manual) Incorrect reply. Please cull another respond.

20.	Proper recovery techniques begin with the use of advisable recovery equipment that has been certified past:
		A. EPA simply
		B. Manufacturers approved by UL
		C. EPA canonical laboratory
		D. EPA field supervisors
Refrigerant Recovery and/or Recycling equipment manufactured after November xv, 1993, must exist certified and labeled by an EPA approved equipment testing organization to meet EPA standards. (Page 26 ESCO EPA 9TH V2 Edition Prep Manual) Incorrect respond. Please cull another answer.

21.	After the installation of whatsoever type of organization, the unit should showtime be:
		A. Pressurized with air and checked for leaks.
		B. Pressurized with an inert gas and leak checked.
		C. Charged co-ordinate to manufacturer's guidelines.
		D. Left 24 hours to allow the system to stabilize.
Afterward the installation of any type of arrangement, the unit should outset exist pressurized with nitrogen (an inert gas) and leak checked. In lodge to make up one's mind the general area of a leak use an electronic or ultrasonic leak detector. (Page 21 ESCO EPA 9th V2 Edition Prep Manual) Incorrect answer. Please choose another answer.

22.	Disposable cylinders must exist:
		A. Discarded.
		B. Stored away.
		C. Used for air.
		D. Recovered and used again.
It is a violation of Department 608 to dispose of a disposable cylinder without starting time recovering whatsoever remaining refrigerant (to 0 psig.), rendering the cylinder useless, and then recycling the metal. (Page 10 EPA Prep Manual) Wrong answer. Delight choose another answer.

Type Iii Questions

23.	What blazon of equipment can be worked on with Type III certification?
		A. High-pressure
		B. Medium-pressure
		C. Depression-force per unit area
		D. Vacuum force per unit area
Technicians maintaining, servicing, repairing or disposing of lowpressure appliances must be certified as a Type Iii Technician or a Universal Technician. (Page 24 ESCO EPA 9th V2 Edition Prep Manual) Wrong reply. Please choose another answer.

24.	The EPA-required evacuation level for recovery or recycling equipment used on depression-pressure systems is:
		A. 15 inches Hg.
		B. 20 inches Hg.
		C. 25 mm of Hg absolute.
		D. 30 inches Hg absolute.
Recovery or recycling equipment manufactured or imported before or afterward Nov. 15, 1993, must be able to achieve a recovery level of 25mm Hg Absolute. (Page 26 ESCO EPA 9th V2 Edition Prep Manual) Wrong answer. Please choose another answer.

25.	Which of the following best describes the refrigerant recovery process from an R-123 system?
		A. Start with vapor removal and and then switch over to liquid recovery.
		B. Start with liquid removal and then switch over to vapor recovery.
		C. Run the compressor and only recover refrigerant in the liquid country.
		D. Run the compressor and simply recover refrigerant in the vapor country.
Refrigerant recovery from a system using R11 or R123 starts with liquid removal and is followed by vapor recovery. (Folio 25 ESCO EPA 9TH V2 Edition Prep Transmission) Wrong reply. Delight cull some other reply.

26.	When charging a low-force per unit area system, refrigerant should exist introduced to the organisation as a vapor to raise the organization'south saturation temperature to a minimum of;
		A. 0 degrees.
		B. 36 degrees.
		C. 40 degrees.
		D. lxx degrees.
Before charging with liquid, a refrigeration organisation requires a vapor pressure to a higher place a saturation temperature of 36° F. (Page 26 ESCO EPA ninth V2 Edition Prep Manual) Wrong answer. Delight cull another answer.

27.	The standard for machine room safety is:
		A. ASHRAE-15
		B. ASHRAE-34
		C. AHRI-740
		D. EPA-740
ASHRAE standard 15 requires a refrigerant monitor that will sound an alarm and automatically start a ventilation system in equipment rooms earlier the refrigerant concentration reaches the TLVTWA, (threshold limit valuetime weighted average). (Page 27 ESCO EPA 9TH V2 Edition Prep Manual) Incorrect reply. Delight choose another respond.

28.	To repair a chiller operating with R-22, the technician:
		A. does not need a certification.
		B. must have a Type I certification.
		C. must have a Type 2 certification.
		D. must have a Blazon Iii certification.
R-22 is a high-pressure level refrigerant therefore blazon II certification is needed. R-xi and R-123 are low-pressure refrigerants. (Page xx ESCO EPA ninth V2 Edition Prep Transmission) Incorrect respond. Please choose another answer.

29.	When removing oil from a lowpressure organisation, a temperature of what must be attained?
		A. fifty degrees F.
		B. 75 degrees F.
		C. 100 degrees F.
		D. 130 degrees F.
A temperature of 130° F should be attained when removing oil from a lowpressure system. Less refrigerant is independent in the oil at this higher temperature. (Page 26 ESCO EPA 9th V2 Edition Prep Manual) Incorrect answer. Please choose another respond.

30.	Water must be circulated through the tubes when evacuating refrigerant in club to forbid:
		A. Oil problems.
		B. Refrigerant Leaks.
		C. H2o from freezing.
		D. H2o leaks.
H2o must be circulated through the tubes when evacuating refrigerant in society to prevent freezing the water. (Page 26 ESCO EPA 9TH V2 Edition Prep Manual) Incorrect answer. Delight choose another answer.

Is Freon Heavier Than Air,

Source: https://www.tests.com/practice/epa-608-technician-certification-test-short

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