Hvac Journeyman Exam Questions and Answers_____ 100% Pass

Hvac Journeyman Exam Questions and
Answers_____ 100% Pass

Defects on gas piping or fittings shall be _____.

(A) 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.

(Correct Answer) - ✅✅ B. Fitting shall be replaced or repaired and retested. UMC
Section 1316.4.3



Every absorption refrigerating system 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.

(Correct Answer) - ✅✅ B. Slab extending not less than 3" above the adjoining ground
level. UMC Section 1106.2



Any part of a venting system installed at an angle greater than 45 degrees from the
vertical is considered by code to be _____

.(A) vertica

(B) horizontal l

(C) a flat vent

,(D) an offset vent

(Correct Answer) - ✅✅ B. any part of the venting installed at an angle GREATER than
45 degrees is considered by this code to be Horizontal UMC Section 802.6.1.1



Listed transition ducts f or clothes dryers shall not exceed_____ feet in length.

A.3

B.4

C.5

D.6.

(Correct Answer) - ✅✅ D. Dryers shall not exceed 6 feet in length. UMC Section
504.3.2.1



Industrial product-conveying ducts and their 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

(Correct Answer) - ✅✅ A. Shall Be Constructed of sheet metal. UMC Section. 5 0 6.1



Industrial product-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 (Correct Answer) - ✅✅ A 511.2



Unlisted vented gas fireplaces shall have a clearance at the sides and rear of not less than
_____ inches. Is the Answer: A. 10" B. 12" C 16" D. 18". (Correct Answer) - ✅✅ D.

, clearance of an unlisted vented gas fireplace at the sides and the rear not less than 18".
UMC Section 908.2(B)



Leaks in gas piping shall be located _____.(A) with a 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. (Correct Answer) - ✅✅ C. leaks in a gas piping
shall be located with a non corrosive leak detecting fluid. UMC Section 1316.4.2



Condensate drain piping shall have a slope of not less than _____ inch per foot. A 1⁄8"
B.¼" C.½" D. 1" (Correct Answer) - ✅✅ A. Slope of not less than 1/8" per foot. UMC
Section 309.1



The minimum gauge or size steel wire used to support horizontal metal ducts 10 inches or
less in size is _____. A.14 AWG B.16 AWG C.18 AWG D.20 AWG (Correct Answer) - ✅✅
C. 18 Minimum Gauge note: AWG is the abbreviation for "gauge size" Table 6-7(B)



When smoke detectors are required as part of an automatic shutoff system, they shall be
installed in the _____. A. return air duct ahead of any fresh-air inlet(B) main supply air
duct served by such equipment(C) fresh-air inlet(D) main return and the main supply
duct. (Correct Answer) - ✅✅ B. shall be installed in the main supply air duct served by
equipment. UMC Section 609.0(5)



The largest fuel-burning appliance allowed in a room 100'W x 20'L x 8'H without
combustion air openingsis _____ Btu.(A) 80,000 (C) 140,000(B) 100,000 (D) 320,000
(Correct Answer) - ✅✅ 31 D. 701.2.1



Return air ducts that serve a dwelling unit shall be permitted to be of _____ construction?
A.non-combustible B. combustible C. rated D. none of the above. (Correct Answer) -
✅✅ B. Shall be permitted to be of combustible type UMC Section 602.2 Ex (1)