HVAC JOURNEYMAN EXAM 2024-2025 AND
PRACTICE EXAM 150 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES (100%
CORRECT AND VERIFIED
Terms in this set (127)
Defects on gas piping or B. Fitting shall be replaced or repaired and retested.
fittings shall be _____.(A) UMC Section 1316.4.3
repaired(B) replaced or
repaired and retested(C)
repaired by a certified
welder(D) ignored, as the
operating pressure is
much less than the air test.
Every absorption B. Slab extending not less than 3" above the adjoining
refrigerating system ground level. UMC Section 1106.2
supported from the
ground shall rest on a
concrete slab extending
not less than _____ the
adjoining ground level.(A)
3 inches below(B) 3 inches
above (C) 6 inches
below(D) 6 inches above.
,Any part of a venting B. any part of the venting installed at an angle
system installed at an GREATER than 45 degrees is considered by this code
angle greater than 45 to be Horizontal UMC Section 802.6.1.1
degrees from the vertical
is considered by code to
be _____.(A) vertica(B)
horizontal l (C) a flat vent
(D) an offset vent
Listed transition ducts f or D. Dryers shall not exceed 6 feet in length. UMC
clothes dryers shall not Section 504.3.2.1
exceed_____ feet in length.
A.3 B.4 C.5 D.6.
Industrial product- A. Shall Be Constructed of sheet metal. UMC Section.
conveying ducts and their 5 0 6.1
fittings for abrasive and
nonabrasive dust or solid
materials shall be
constructed of _____.(A)
sheet meta(B) polyvinyl
chloride l (C) fiberglass
(D) A and C apply
Industrial product- A 511.2
conveying ducts and their
fittings for abrasive and
nonabrasive dust or solid
materials shall be
constructed of _____.(A)
sheet metal ((B) polyvinyl
chloride C) fiberglass (D)
A and C apply
, Unlisted vented gas D. clearance of an unlisted vented gas fireplace at the
fireplaces shall have a sides and the rear not less than 18". UMC Section
clearance at the sides and 908.2(B)
rear of not less than _____
inches. Is the Answer: A.
10" B. 12" C 16" D. 18".
Leaks in gas piping shall C. leaks in a gas piping shall be located with a non
be located _____.(A) with a corrosive leak detecting fluid. UMC Section 1316.4.2
sniffer(B) with a presto-lite
flame (C) with a
noncorrosive leak-
detecting fluid (D) by
increasing the air pressure
during a test until the leaks
are heard as a whistle.
Condensate drain piping A. Slope of not less than 1/8" per foot. UMC Section
shall have a slope of not 309.1
less than _____ inch per foot.
A 1⁄8" B.¼" C.½" D. 1"
The minimum gauge or C. 18 Minimum Gauge note: AWG is the abbreviation
size steel wire used to for "gauge size" Table 6-7(B)
support horizontal metal
ducts 10 inches or less in
size is _____. A.14 AWG B.16
AWG C.18 AWG D.20 AWG
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 TheAlphanurse. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
