EPA 608 TYPE 3 EXAM QUESTIONS WITH 100% CORRECT ANSWERS
1 view 0 purchase
Course
EPA 608
Institution
EPA 608
EPA 608 TYPE 3 EXAM QUESTIONS WITH 100%
CORRECT ANSWERS On low pressure chillers, moisture typically enters the refrigerant system
through *correct answer*air leaks from areas with gaskets or fittings
• The maximum test pressure for leak testing a low pressure centrifugal is:
*correct answer...
EPA 608 TYPE 3 EXAM QUESTIONS WITH 100%
CORRECT ANSWERS
• On low pressure chillers, moisture typically enters the refrigerant system
through *correct answer*air leaks from areas with gaskets or fittings
• The maximum test pressure for leak testing a low pressure centrifugal is:
*correct answer*10 psig
• A hydrostatic tube test kit is used to: *correct answer*determine if a tube
leaks
• Commercial and industrial process refrigeration systems must be
repaired when the leak rate exceeds of the charge per year. *correct
answer*35%
• A rupture disc on a recovery vessel for a low pressure refrigerants
relieves at: *correct answer*15 psig
• According to ASHRAE Guideline 3-1996, if the pressure in a system
rises from 1 mm Hg to a level above during a standing vacuum test, the
system should be checked for leaks. *correct answer*2.5 mm Hg
• The primary water source for a recovery unit condensing coil is.
*correct answer*local municipal water supply
• When recharging a refrigeration system with R-11, what vaporpressure
is necessary in the shells before changing with liquid? *correct answer*16.9"
Hg vacuum
• After recovering the liquid refrigerant you must: *correct answer*recover
the vapor refrigerant
, • According to the EPA there is approximately refrigerant vapor left in
an average 350 ton R-11 chiller at 0 psig pressure once all the R-11 liquid has
been removed. *correct answer*100 pounds
• Charging refrigerant liquid into a refrigeration system when it is under a
29 inch Hg vacuum can cause the: *correct answer*system water to freeze
• A system does not have to be evacuated all the way to the required level
when: *correct answer*leaks in the appliance make evacuation to the
prescribed level unattainable
• Which of the foloowing repairs would ALWAYS be considered "major"
under EPA's *correct answer*replacement of evaporator coil
• Under EPA's regulation's is used to pressurize a low pressure chiller for
the purpose of opening the system for a non major repair?
*correct answer*warming the refrigerant
• If you are using a recovery machine manufactored AFTER 11-15-93 you
must evacuate an low pressure appliance to before making a major repair.
*correct answer*25 mm of Hg absolute
• After reaching the required recovery vacuum on a chiller, you should
*correct answer*Wait for at least a few minutes to see if the system pressure
rises, indicating that there is till refrigerant in a liquid form or in the oil
• The pressure corresponding to 32 F for R-123 *correct answer*20
inches of HG vacuum
• When evacuating a system the use of too large a vacuum pump can
cause? *correct answer*trapped water to freeze
• Refrigerant-11 at a pressure of 17 inches HG vacuum has a saturation
temperature of: *correct answer*35F
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 Hosmerit. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
