Hvac Journeyman Exam QUESTIONS WITH ANSWERS

Hvac Journeyman Exam \| \| \|




QUESTIONS WITH ANSWERS \| \|




Defects on gas piping or fittings shall be _____.(A) repaired(B)
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replaced or repaired and retested(C) repaired by a certified
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welder(D) ignored, as the operating pressure is much less than
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the air test. - CORRECT ANSWERS ✔✔B. Fitting shall be replaced
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or repaired and retested. UMC Section 1316.4.3
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Every absorption refrigerating system supported from the ground
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shall rest on a concrete slab extending not less than _____ the
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adjoining ground level.(A) 3 inches below(B) 3 inches above (C) 6
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inches below(D) 6 inches above. - CORRECT ANSWERS ✔✔B. Slab
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extending not less than 3" above the adjoining ground level. UMC
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Section 1106.2 \|




Any part of a venting system installed at an angle greater than 45
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degrees from the vertical is considered by code to be _____.(A)
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vertica(B) horizontal l (C) a flat vent (D) an offset vent - CORRECT
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ANSWERS ✔✔B. any part of the venting installed at an angle \| \| \| \| \| \| \| \| \| \| \|



GREATER than 45 degrees is considered by this code to be
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Horizontal UMC Section 802.6.1.1 \| \| \|




Listed transition ducts f or clothes dryers shall not exceed_____
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feet in length. A.3 B.4 C.5 D.6. - CORRECT ANSWERS ✔✔D. Dryers
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shall not exceed 6 feet in length. UMC Section 504.3.2.1
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,Industrial product-conveying ducts and their fittings for abrasive
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and nonabrasive dust or solid materials shall be constructed of
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_____.(A) sheet meta(B) polyvinyl chloride l (C) fiberglass (D) A
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and C apply - CORRECT ANSWERS ✔✔A. Shall Be Constructed of
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sheet metal. UMC Section. 5 0 6.1
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Industrial product-conveying ducts and their fittings for abrasive
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and nonabrasive dust or solid materials shall be constructed of
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_____.(A) sheet metal ((B) polyvinyl chloride C) fiberglass (D) A
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and C apply - CORRECT ANSWERS ✔✔A 511.2
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Unlisted vented gas fireplaces shall have a clearance at the sides
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and rear of not less than _____ inches. Is the Answer: A. 10" B. 12"
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C 16" D. 18". - CORRECT ANSWERS ✔✔D. clearance of an unlisted
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vented gas fireplace at the sides and the rear not less than 18".
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UMC Section 908.2(B) \| \|




Leaks in gas piping shall be located _____.(A) with a sniffer(B) with
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a presto-lite flame (C) with a noncorrosive leak-detecting fluid (D)
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by increasing the air pressure during a test until the leaks are
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heard as a whistle. - CORRECT ANSWERS ✔✔C. leaks in a gas
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piping shall be located with a non corrosive leak detecting fluid.
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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 ANSWERS ✔✔A.
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Slope of not less than 1/8" per foot. UMC Section 309.1
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The minimum gauge or size steel wire used to support horizontal
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metal ducts 10 inches or less in size is _____. A.14 AWG B.16 AWG
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, C.18 AWG D.20 AWG - CORRECT ANSWERS ✔✔C. 18 Minimum
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Gauge note: AWG is the abbreviation for "gauge size" Table 6-7(B)
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When smoke detectors are required as part of an automatic
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shutoff system, they shall be installed in the _____. A. return air
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duct ahead of any fresh-air inlet(B) main supply air duct served by
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such equipment(C) fresh-air inlet(D) main return and the main
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supply duct. - CORRECT ANSWERS ✔✔B. shall be installed in the
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main supply air duct served by equipment. UMC Section 609.0(5)
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The largest fuel-burning appliance allowed in a room 100'W x 20'L
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x 8'H without combustion air openingsis _____ Btu.(A) 80,000 (C)
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140,000(B) 100,000 (D) 320,000 - CORRECT ANSWERS ✔✔31 D. \| \| \| \| \| \| \| \| \|



701.2.1


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




Solid fuel-burning appliances _____ be connected to a venting
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system that serves a gas- or oil-burningappliance.(A) shall (B)
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may (C) shall not(D) with special approval may - CORRECT
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ANSWERS ✔✔C. appliances shall not UMC Section 802.5.5.1 \| \| \| \| \| \| \|




Any joint obtained by joining of metal parts with alloys that melt
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at temperatures higher than 840°F, but lowerthan the melting
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temperature of the parts to be joined, is a _____ joint.(A) brazed(B) \| \| \| \| \| \| \| \| \| \| \| \|



fused (D) soldered (C) welded - CORRECT ANSWERS ✔✔A. Is a
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brazed joint UMC section 2 1 2.0 \| \| \| \| \| \|