HAVEC JOURNEYMAN EXAM WITH QUESTIONS AND ANSWERS

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HAVEC JOURNEYMAN EXAM WITH
QUESTIONS AND ANSWERS

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


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 - answer-D. A condenser is the piping which
vaporizes the refrigerant liquefied by removal of heat, UMC
Section 2 0 5.0


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. - answer-B. Fitting shall be 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 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

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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