Exam (elaborations)
EPA Section 2 – Questions & Detailed Solutions (100%)
- Course
- Institution
EPA Section 2 – Questions & Detailed Solutions (100%)
[Show more]
Content preview
EPA Section 2 – Questions & Detailed Solutions (100%)Industrial process and refrigeration units with a 50 pound charge or more
with an annualized leak rate of _____ or more must have leaks repaired.
Right Ans - 35%
Unless plans are made to replace a system exceeding the maximum leak,
repairs must be made in; Right Ans - 30 days
Refrigerants CFC R-12, HCFC R-22, and HFC 134a are all classified as; Right
Ans - type A-1
All Refrigeration & HVAC systems are protected by a; Right Ans - Pressure
relief valve
A refrigerant sensor which will sound an alarm and automatically start a
ventilation system in occupied equipment rooms fall under; Right Ans -
ASHRAE Standard 15
Non-condensables will cause; Right Ans - High discharge pressure
A crankcase heater is often used to prevent refrigerant from migrating to the
oil during periods of: Right Ans - Low ambient tempurature
EPA regulations state that maintenance, service or repair involving the
removal of the following component is a "major repair" Right Ans -
compressor
What refrigerant can be used as a trace gas when checking for leaks? Right
Ans - R-22
What can be done with the refrigerant trace gas and nitrogen after the leak is
found? Right Ans - Release to the atmosphere
High pressure appliances can be evacuated to atmospheric pressure (O psig)
when; Right Ans - there is a leak
If a high pressure appliance containing 100 lbs. of an HCFC OTHER THAN R-22
refrigerant Recovery and/or Recycling equipment manufactured after
, November 15, 1993 must be evacuated to a level of; Right Ans - 10 inches
of vacuum
When dehydrating a system it should be evacuated to a level of; Right Ans -
500 microns
When recovering from a system with a refrigerant leak, recover to a level of;
Right Ans - 0 Psig
When using a recovery system manufactured after November 15, 1993 on a
system containing 100 lbs. of R-502 must be evacuated to; Right Ans - 10
inches of vacuum
If a high pressure appliance containing 210 lbs. of R-22 refrigerant Recovery
and/or Recycling equipment manufactured before November 15, 1993 must
be evacuated to a level of; Right Ans - 4 inches of vacuum
What conditions allow for a system to be opened and repaired without
recovering the refrigerant to the required vacuum level? Right Ans - a
system with a large leak and system pressure is atmospheric
A new split system should be checked for leaks by; Right Ans - pressurizing
the system with a few ounces of r-22 and an inert gas
An overcharged system will operate; Right Ans - less efficiently
Refrigerant should be removed from the condenser outlet if the condenser is;
Right Ans - Below the reciever
EPA regulations require that all Commercial and Industrial Process
Refrigeration containing more than 50lbs. of refrigerant MUST be repaired
when the annual leak rate exceeds; Right Ans - 35%
Proper recovery techniques begin with the use of appropriate recovery
equipment that has been certified by; Right Ans - EPA approved labratory
What happens to a refrigerant that is above the saturation temperature?
Right Ans - It remains a vapor state
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 LeCrae. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
80796 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now