A boiler for generating steam at gauge pressures in excess of 15 psi or for heating water to a temperature in excess of 250 degrees, or at a gauge pressure in excess of 160 psi is considered a ______ _______ boiler
What is high pressure
Equipment or appliances shall be approved by the _________ for safe use or comply with nationally recognized standards
AHJ
Refrigerants that do not show flame propagation where tested in air at 14.7 pound force per square inch absolute and 140 degrees are class______
What is class 1.
Appliance vents shall not discharge into a space enclosed by screens having openings less than _____ inch mesh.
What is 1/4.
Ducts installed underground shall be approved for the installation and shall have a slope of not less than _____ inch per foot back to the main riser.
What is 1/8
In regards to to accessibility for service, not less than ______ inches in depth, width and height of working space shall be provided unless otherwise specified.
What is 30
Masonry chimneys shall be built and installed in accordance with NFPA 211 and lined with approved clay flue lining, a listed chimney lining system, or other approved material that resists corrosion, erosion, softening, or cracking from vent gases at temperatures not exceeding _______ degrees.
What is 1800
A 120 volt receptacle shall be located with ______ feet of the equipment for service and maintenance purposes
What is 25
Unlisted air conditioning appliances shall be installed with clearances from combustible materials of not less than _______ inches above the appliance and at the sides, front, rear and in accordance with the manufactures installation instructions.
What is 18.
A room or space having a volume less than 50 cubic feet per 1,000 BTU per hour of the aggregate input rating of all fuel burning appliances installed in that space is known as a ___________
What is a confined space
Where 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 ________ inches.
What is 18.
Exhaust ducts shall not pass through _________, as defined by NFPA 211.
What is fire walls.
Seams, joints, and penetrations of the hood enclosure that direct and capture grease laden vapors and exhaust gases shall have a ______
What is a continuous external weld to the hoods lower outermost perimeter.
Furnaces shall not be located upstream from _________, unless the ________ is designed or equipped so as not to develop excessive temperature or pressure.
What is refrigeration coil
A kitchen hood for collecting and removing grease and smoke is known as a _________
What is a type 1 hood
An unobstructed readily accessible opening and passageway not less than ________inches in width and _____ inches in height shall be provided and maintained to the compressor, valves required by this chapter, or other portions of the system requiring routine maintenance
What is 36, 80
Recirculating direct gas fired industrial air heaters shall not serve_________
What is sleeping quarters
Ducts, plenums, or fittings of metal shall comply with______
What is SMACNA
Piping and tubing shall be securely fastened to a permanent support within _____ feet following the first bend in such tubing from the compressor and within _____ feet of each subsequent bend or angle
What is 6,2.
Where more than one heating, cooling, ventilation, or refrigerating system is installed on the roof of a building or within a building, it shall be ________
What is permanently identified as to the area or space served by the equipment.
When shall combustion air ducts not be screened?
Where terminating in an attic space
Systems in which the basic design, or the location of the components, is such that a leakage of refrigerant from a failed connection, seal, or component is not capable of entering the occupied space shall be classified as _______________.
What is low probability system
The required volume for indoor combustion air shall be not less than ______ cubic feet per _____ BTU, when using the standard method.
What is 50,100
Where gypsum products are exposed in ducts, or plenums, the air temperature shall be restricted to a range from _____ degrees to ______ degrees.
What is 50 to 125
The piping and equipment between the street gas main and the gas piping system inlet that is installed by, and is under the control of maintenance of the serving gas supplier is known as_________.
What is service piping.