100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
EPA 608 Exam Questions with Correct Answers £8.37   Add to cart
Quickly navigate to
Preview
  2.  
  3. Refrigeration Machine Operator
  4.  
  5. Refrigeration machine operator

Exam (elaborations)

EPA 608 Exam Questions with Correct Answers
 9 views  0 purchase
  • Module
  • Refrigeration machine operator
  • Institution
  • Refrigeration Machine Operator

What should a service technician do if they lose their EPA certification card? - Answer-Request a new card from the certifying organization What type of synthetic oils are commonly used in new HFC systems and for retrofitting HCFC equipment to HFC refrigerants? - Answer-Polyolester Which of t...

[Show more]

Preview 2 out of 5  pages

Document information

  • September 10, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • epa 608 exam questions with correct answers
  • what should a service technician do if they lose t

Written for

  • Refrigeration machine operator
  • Refrigeration machine operator

Seller

avatar-seller
lectknancy

Reviews received

Content preview

EPA 608 Exam Questions with Correct
Answers
What should a service technician do if they lose their EPA certification card? - Answer-
Request a new card from the certifying organization

What type of synthetic oils are commonly used in new HFC systems and for retrofitting
HCFC equipment to HFC refrigerants? - Answer-Polyolester

Which of the following is NOT a violation of the refrigerant management regulations
under the clean air act? - Answer-Servicing a system the uses CFC's or HCFC's after
the phaseout of those refrigerants

What effect will low ambient temperatures have on recovery? - Answer-Increase the
recovery time

You have to leak-check a unit which has lost a complete charge. Which gas(es) would
cause the LEAST damage to the environment? - Answer-Dry nitrogen

Over evacuation of a system
Responses - Answer-Does not occur

What evidence demonstrates that chlorine in the stratosphere is primarily from man-
made chemicals rather than from natural sources such as volcanoes? - Answer--The
rise in the amount of chlorine measured in the stratosphere matches the rise in the
amount of fluorine, which has different natural sources than chlorine, over the same
period.
-The rise in the amount of chlorine measured in the stratosphere matches the rise in
ozone-depleting substance missions over the same period.
-Samples of air taken from the stratosphere over erupting volcanoes show that
volcanoes contribute to a small quantity to the stratosphere compared to CFC's and
HCFC's
**All of the listed reasons**

Why are HFO refrigerants less flammable than hydrocarbon refrigerants? - Answer-
They contain fluorine

Which of the following practices will conserve refrigerant when servicing an appliance? -
Answer-Finding and repairing leaks in the system

Which of the following refrigerants is an HFO? - Answer-R-1234yf

What is the strongest evidence that HCFC's are in the stratosphere? - Answer-
Measurements of HCFC's in air samples from the stratosphere

, The refrigerant label to identify the type of refrigerant recovered is placed on a recovery
cylinder for all of the following reasons EXCEPT to - Answer-Tell if the cylinder is safe

What should a technician do if they discover that some R-410a was added to and R-22
system? - Answer-Recover the mixture in a separate recovery tank

Which of the following is NOT important to do before recharging any flammable
hydrocarbon or HFO refrigerant into a system? - Answer-Add an odorant to the system
to indicate a flammable refrigerant is being used

The term "retrofit" refers to a change to the appliance in order to do what? - Answer-
Convert it to use a different refrigerant

Why should care be used to prevent overfilling refrigerant storage cylinders? - Answer-
The internal pressure of the cylinder may rise to heated areas and cause an explosion

When transporting cylinders containing used refrigerant, DOT requires that you -
Answer-Attach DOT classification tags

What must be done to the refrigerant that is vented off the top when filling a charging
cylinder? - Answer-The refrigerant must be recovered if it is a CFC, HCFC, or HFC

In addition to fines and being required to appear in court, what penalty can be imposed
to service technicians who violate the Clean Air Act provisions? - Answer-They may
lose their certification

What is the service procedure if the refrigerant in a recovery cylinder is suspected to be
contaminated? - Answer-Take a pressure reading of the cylinder

When do EPA's refrigerant management regulations exempt refrigerant from the venting
prohibition? - Answer-When the EPA has determined that the refrigerant in that type of
appliance does not pose a threat to the environment if released

A passive system-dependent recovery process for small appliances - Answer-Captures
refrigerant in a non-pressurized container

All appliances must be equipped with a service aperture or process stub which is used
when adding or removing refrigerant from the appliance. What is typically used on small
appliances? - Answer-A straight piece of tubing that is entered using a piercing access
valve

What action must an owner/operator take if a supermarket system containing 50 or
more pounds of R-22 leaks more than 125% of it's charge in a calendar year? - Answer-
Submit a report to the EPA describing efforts to identify leaks and repair of the
appliance

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller lectknancy. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £8.37. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79271 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£8.37
  • (0)
  Add to cart