HVAC JOURNEYMAN EXAM SCRIPT 2026
QUESTIONS WITH ANSWERS GRADED A+
◉ 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. 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 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. 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
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
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". 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. 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" 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 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. 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 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. Answer: B. Shall be permitted to be of combustible type
UMC Section 602.2 Ex (1)
◉ 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 Answer: 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 Answer: A. Is a brazed joint UMC section 2 1 2.0
QUESTIONS WITH ANSWERS GRADED A+
◉ 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. 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 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. 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
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
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". 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. 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" 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 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. 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 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. Answer: B. Shall be permitted to be of combustible type
UMC Section 602.2 Ex (1)
◉ 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 Answer: 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 Answer: A. Is a brazed joint UMC section 2 1 2.0
