Exam (elaborations)
ABYC Air Conditioning & Refridgeration Certification Exam Review
- Course
- Institution
ABYC Air Conditioning & Refridgeration Certification Exam Review
[Show more]
Seller
Follow
selftest
Reviews received
Content preview
Matching questions1-200 of 200
Click a term to match it with a definition
While phasing out R-22, other gases can cause serious damage, except which one?
a. HFC-134a
b. R417A
c. R-12
d. None of the above
Give this one a try later!
b. R417A
,Air handling units (AKA "heat exchanger, Coil, or evaporator units) installed at floor
level must be ducted so as to discharge air
a. At waist level or above
b. At floor level under 10 feet away from unit
c. At floor level over 10 feet away from unit
d. Goes overboard
Give this one a try later!
a. At waist level or above
Once pressure tested, for how long afterward may a refrigerant recovery cylinder be
used without re-testing?
Give this one a try later!
5 years
Air in the condenser or an air-cooled condenser with dust-clogged cooling fins can
cause what?
Give this one a try later!
Excessive compressor head pressure
To convert Watts into BTU's, the Watts should be multiplied by:
A. 3.41
,B. 4.4
C. 22
D. 34
Give this one a try later!
A. 3.41
Capacitors must be within ______ percent if you need to replace them
a. 10
b. 15
c. 20
d. 25
Give this one a try later!
a. 10
Using a high-quality dual-stage vacuum pump, about how many hours will it take to
fully evacuate a small A/C system and remove all moisture (~29.72" or 5,000 microns)
at 70 degrees F?
Give this one a try later!
~4 hours
A system has low suction and discharge pressure, but high superheat and partial
frosting on the evaporator. What is probably wrong:
a. System blockage
, b. Too much refrigerant in system
c. Not enough refrigerant in system
d. System needs maintenance/cleaning
Give this one a try later!
c. Not enough refrigerant in system
The amount of BTU's needed per square foot to cool a mid-deck space in the pacific
northwest is;
a. 60
b. 90
c. 120
d. 150
Give this one a try later!
b. 90
The decrease in pressure due to friction of a fluid or vapor as it passes through a tube
or duct and/or lift.
Give this one a try later!
Pressure Drop
1 BTU per hour is equal to how many Watts?
Give this one a try later!
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 selftest. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81989 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now