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Journeyman Test Prep (Nebraska) Questions and Answers
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Journeyman Test Prep (Nebraska) Questions and Answers
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Journeyman Test Prep (Nebraska) Questions andAnswers
When mounted on or above the roof covering, the collector array and supporting construction
shall be constructed of ______________ materials or fire-retardant-treated wood conforming to
the International Building Code to the extent required for the type of roof construction of the
building to which the collectors are accessory
A. combustible
B. noncombustible
C. plastic or fiberglass
D. stainless steel, aluminum or copper CORRECT ANS-B. noncombustible
Exhaust ducts for domestic clothes dryers shall be constructed of metal and shall have a smooth
interior finish. The exhaust duct shall be a minimum nominal size of _____________. The entire
exhaust system shall be supported and secured in place
A. 3 inches in diameter
B. 4 inches in diameter
C. 5 inches in diameter
D. 6 inches in diameter CORRECT ANS-B. 4 inches in diameter
Where a code provision is less restrictive than the conditions of the listing of the equipment or
appliance or the manufacturer's installation instructions, the ____________ shall apply.
A. conditions of the listing and the manufacturer's installation instructions
B. code CORRECT ANS-A. conditions of the listing and the manufacturer's installation
instructions
Smoke barriers shall comply with the International Building Code. Smoke barriers shall be
constructed and sealed to limit leakage areas exclusive of ______________
A. protected openings
B. window sizes
,C. backdraft dampers
D. none of these CORRECT ANS-A. protected openings
Clearance shall be maintained around boilers, generators, heaters, tanks and related
equipment, and appliances so as to permit inspection, servicing, repair, replacement, and
visibility of all gauges. When boilers are installed or replaced, clearance shall be provided to
allow access for inspection, maintenance and repair. Passageways around all sides of boilers
shall have an unobstructed width of not less than ___________________, unless otherwise
approved
A. 12 inches
B. 18 inches
C. 24 inches
D. 30 inches CORRECT ANS-B. 18 inches
The design and operation of the exhaust system shall be such that inflammable contaminants
are diluted in non-contaminated air to maintain concentrations in the exhaust flow below
__________ percent of the contaminant's lower flammability limit
A. 10
B. 15
C. 25
D. 35 CORRECT ANS-C. 25
Dryer exhaust ducts for clothes dryers shall terminate on the outside of the building and shall
be equipped with a ____________
A. screen with not less than 1/4 inch mesh
B. backdraft damper and screen
C. backdraft damper
D. none of these CORRECT ANS-C. backdraft damper
, A refrigerating system in which refrigerant is pressurized by pumping a chemical solution of
refrigerant in absorbent, and then separated by the addition of heat in a generator, condensed
(to reject heat), expanded, evaporated (to provide refrigeration), and reabsorbed in an absorber
to repeat the cycle; the system may be single or multiple effect, the latter using multiple stages
or internally cascaded use of heat to improve efficiency
A. appliance
B. absorption system
C. air distribution system
D. heat pump CORRECT ANS-B. absorption system
In wood structures, notches on the end of the joists shall not exceed ___________ the joist
depth.
A. one fourth
B. 6% of
C. 1/2 of
D. 10% of CORRECT ANS-A. one-fourth
Underground inspection shall be made after trenches or ditches are excavated and bedded,
piping installed, and ___________ backfill is put in place. When excavated soil contains rocks,
broken concrete, frozen chunks, and other rubble that would damage or break the piping or
cause corrosive action, clean backfill shall be on the jobsite.
A. after
B. before
C. as the CORRECT ANS-B. before
For a gas appliance, the volume of gas to be provided, in cubic feet per hour, may be
determined ___________________
A. where an input rating is not indicated, from the gas supplier
B. where an input rating is not indicated, from the appliance manufacturer
C. directly from the manufacturers input ratings of the appliances served
D. all of the above CORRECT ANS-D. all of the above
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