1
Hvac Journeyman Exam2026
Questions and Answers (100% Correct
Answers) Already Graded A+
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. Ans: B. Fitting shall be
© 2026 Assignment
replaced or repaired and retested. UMC Section 1316.4.3
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Every absorption refrigerating system supported from the
ground shall rest on a concrete slab extending not less
Expert
than _____ the adjoining ground level.(A) 3 inches below(B)
3 inches above (C) 6 inches below(D) 6 inches above. Ans:
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 Ans: 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. Ans: 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 Ans: A. Shall Be
Constructed of sheet metal. UMC Section. 5 0 6.1
, 2
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 Ans: 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". Ans: D. clearance of an unlisted
vented gas fireplace at the sides and the rear not less than
18". UMC Section 908.2(B)
© 2026 Assignment
Leaks in gas piping shall be located _____.(A) with a
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sniffer(B) with a presto-lite flame (C) with a noncorrosive
leak-detecting fluid (D) by increasing the air pressure
Expert
during a test until the leaks are heard as a whistle. Ans: 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" Ans: 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 Ans: 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. Ans: B.
, 3
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 Ans: 31
D. 701.2.1
Return air ducts that serve a dwelling unit shall be
permitted to be of _____ construction? A.non-combustible
© 2026 Assignment
B. combustible C. rated D. none of the above. Ans: B. Shall
be permitted to be of combustible type UMC Section 602.2
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Ex (1)
Expert
Solid fuel-burning appliances _____ be connected to a
venting system that serves a gas- or oil-
burningappliance.(A) shall (B) may (C) shall not(D) with
special approval may Ans: C. appliances shall not UMC
Section 802.5.5.1
Any joint obtained by joining of metal parts with alloys
that melt at temperatures higher than 840°F, but lowerthan
the melting temperature of the parts to be joined, is a
_____ joint.(A) brazed(B) fused (D) soldered (C) welded Ans:
A. Is a brazed joint UMC section 2 1 2.0
A vessel or arrangement of piping or tubing in which
vaporized refrigerant is liquefied by removal of heat is a
_____.(A) compressor (C) evaporator(B) generator (D)
condenser Ans: D. A condenser is the piping which
vaporizes the refrigerant liquefied by removal of heat,
UMC Section 2 0 5.0
Hvac Journeyman Exam2026
Questions and Answers (100% Correct
Answers) Already Graded A+
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. Ans: B. Fitting shall be
© 2026 Assignment
replaced or repaired and retested. UMC Section 1316.4.3
Guru01 - Stuvia
Every absorption refrigerating system supported from the
ground shall rest on a concrete slab extending not less
Expert
than _____ the adjoining ground level.(A) 3 inches below(B)
3 inches above (C) 6 inches below(D) 6 inches above. Ans:
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 Ans: 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. Ans: 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 Ans: A. Shall Be
Constructed of sheet metal. UMC Section. 5 0 6.1
, 2
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 Ans: 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". Ans: D. clearance of an unlisted
vented gas fireplace at the sides and the rear not less than
18". UMC Section 908.2(B)
© 2026 Assignment
Leaks in gas piping shall be located _____.(A) with a
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sniffer(B) with a presto-lite flame (C) with a noncorrosive
leak-detecting fluid (D) by increasing the air pressure
Expert
during a test until the leaks are heard as a whistle. Ans: 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" Ans: 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 Ans: 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. Ans: B.
, 3
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 Ans: 31
D. 701.2.1
Return air ducts that serve a dwelling unit shall be
permitted to be of _____ construction? A.non-combustible
© 2026 Assignment
B. combustible C. rated D. none of the above. Ans: B. Shall
be permitted to be of combustible type UMC Section 602.2
Guru01 - Stuvia
Ex (1)
Expert
Solid fuel-burning appliances _____ be connected to a
venting system that serves a gas- or oil-
burningappliance.(A) shall (B) may (C) shall not(D) with
special approval may Ans: C. appliances shall not UMC
Section 802.5.5.1
Any joint obtained by joining of metal parts with alloys
that melt at temperatures higher than 840°F, but lowerthan
the melting temperature of the parts to be joined, is a
_____ joint.(A) brazed(B) fused (D) soldered (C) welded Ans:
A. Is a brazed joint UMC section 2 1 2.0
A vessel or arrangement of piping or tubing in which
vaporized refrigerant is liquefied by removal of heat is a
_____.(A) compressor (C) evaporator(B) generator (D)
condenser Ans: D. A condenser is the piping which
vaporizes the refrigerant liquefied by removal of heat,
UMC Section 2 0 5.0
