HVAC KY598 JOURNEYMAN EXAM PREP QUESTIONS AND VERIFIED CORRECT ANSWERS GRADED A+
Soldering on a metal portion of a hydronic piping system shall be performed a minimum of ________ inches from any plastic to metal adapter in the same water line.
18
Where gas piping is required to be installed in...
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HVAC KY598 JOURNEYMAN EXAM PREP QUESTIONS AND
VERIFIED CORRECT ANSWERS GRADED A+
Soldering on a metal portion of a hydronic piping system shall be performed a
minimum of ________ inches from any plastic to metal adapter in the same water
line.
18
Where gas piping is required to be installed in conduit and one end terminates
outdoors, the conduit must extend not less than ________ inches outside the
building.
4
Domestic clothes dryer exhaust ducts shall be constructed of metal not less than
_______ inch thick.
0.019
Energy recovery ventilation systems shall be provided with means of access to
the heat exchanger as required for service, maintenance, repair, or ________.
replacement
On a roof with a 4/12 slope, an 8-inch diameter Type B vent located 12 feet from a
vertical wall shall terminate a minimum of _______ inches above the roof.
12
What type of cooling system does not need a compressor for the refrigerant
flow?
,Absorption
Catwalks installed to provide the required rooftop equipment access shall be a
minimum of _____ inches above the roof.
24
Required field tests of refrigerant containing parts may be performed with
_______ or _________.
nitrogen, carbon dioxide
Chapter 4 of the International Mechanical Code governs ventilation within
buildings intended to be occupied, but not applicable to _______.
smoke control systems
For an open type hot water expansion tank, an overflow with a minimum of
________ inch(es) shall be installed at the top of the tank.
1
What would the amp draw be for a 120v AC electric motor with 10 ohms
resistance?
12 amps
Gas vents terminating less than 8 feet from a vertical wall shall terminate not less
than ______ feet above any portion of a building within 10 feet.
2
Factory built barbeque appliances shall be of an approved type and installed in
accordance with the International _______ Code.
Fuel gas
, In dry-cleaning rooms, the exhaust system for a Type 2 dry cleaning system shall
be designed to provide an exhaust air flow rate of _______ cfm per square foot of
floor area.
1
Where other approved means of controlling condensation is not provided, the
_______ of attics or structural spaces used as a part of a passive solar system is
required.
ventilation
Ventilation air shall not be recirculated from one dwelling to another or to
_________ occupancies.
dissimilar
Heat exchangers for solar energy systems shall have adequate protection to
insure that the potable aspect of the water supply and distribution system is
______.
properly safeguarded
Steel pipe used in a fuel oil piping system shall be supported horizontally a
maximum of ________ feet.
12
When serving a Type 1 hood, a grease duct penetrates a ceiling shall have a
minimum clearance of _______ inches from gypsum wallboard.
6
The operating mechanism for an opening providing natural ventilation shall be
controllable by ________.
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