HVAC Journeyman Exam
(127 QUESTIONS) with
answers
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
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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)
||| ||| ||| ||| |||
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 - correct 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 - correct answer ✔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 - correct answer ✔D. A condenser is the piping
||| ||| ||| ||| ||| ||| ||| ||| ||| ||| ||| |||
(127 QUESTIONS) with
answers
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)
||| ||| ||| ||| |||
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 - correct 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 - correct answer ✔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 - correct answer ✔D. A condenser is the piping
||| ||| ||| ||| ||| ||| ||| ||| ||| ||| ||| |||
