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58 Cards in this Set
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- Back
- 3rd side (hint)
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Recovered refrigerants shall not be used in a different owners equipment unless the refrigerant has been _____. (A) thoroughly filtered and dried (B) properly blended with new refrigerant (C) analyzed and found to meet purity requirements (D) both A and C |
(C) analyzed and found to meet purity requirements
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1105.4.2 |
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A refrigerant system that is designed or located in such a manner that a leakage could occur and the refrigerant could enter an occupied space is classified as a ____ system.
(A) low probability (B) high probability (C) low hazard (D) high hazard |
(B) high probability
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1104.2 |
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A refrigerant system that has joints and connections effectively isolated from an occupied space is classified as a ____ system.
(A) low hazard (B) low probability (C) isolated (D) unlimited |
(B) low probability
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1104.3 |
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The quantity of refrigerant allowed in a high-probability system is based on the ____.
(A) location (B) area (C) volume (D) occupant load of the occupied space. |
(C) volume
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1105.2 |
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Refrigerant quantities in piping and evaporators within rooms or spaces used exclusively for processing or storage of materials under refrigerated conditions is not limited, providing the _____.
(A) exiting meets the Building Code requirements (B) space is equipped with a refrigerant vapor detection and alarm system (C) space is sealed from all other building portions by the use of vapor-tight construction and tight-fitted gasketed doors (D) A, B, and C apply |
(D) A, B, and C apply
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1105.3 |
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Outside-air and return-air in-cooling systems used for human comfort must comply with _____.
(A) outside-air and return-air code provisions for furnaces (B) the manufacturer's recommendations (C) ASH RAE standards (D) the Building Code |
(A) outside-air and return-air code provisions for furnaces
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1106.1 |
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Supports and anchorage for refrigeration equipment and piping shall be _____.
(A) constructed of stainless steel materials (B) combustible (C) listed and approved by the Authority Having Jurisdiction (D) designed in accordance with the Building Code as Group H Occupancy hazardous facilities |
(D) designed in accordance with the Building Code as Group H Occupancy hazardous facilities
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1106.2 |
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Compressors, valves, and portions of refrigerating systems requiring routine maintenance shall be provided with a readily accessible opening and passageway ___.
(A) 24 inches in width and 6 feet, 8 inches in height (B) 36 inches in width and 6 feet, 8 inches in height (C) 36 inches in width and 36 inches in height (D) adequate to properly maintain the equipment |
(B) 36 inches in width and 6 feet, 8 inches in height
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1106.3 |
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Where an unobstructed access opening is provided for servicing air filters, brine control or stop valves, fan motors and drives, an unobstructed space not less than ___ inches in depth, width, and height shall be provided.
(A) 24 (B) 30 (C) 36 (D) 42 |
(B) 30
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1106.3(2) |
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Except where the fixed building lighting is adequate, permanent lighting fixtures shall be installed for all indoor equipment required to be _____.
(A) removed (B) cleaned (C) serviced (D) accessible or readily accessible |
(D) accessible or readily accessible
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1106.4 |
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Refrigerant-containing portions of condensing units located in rooms or spaces other than a refrigeration machinery room require ventilation of not less than ______.
(A) 4 square feet net free area extending to the exterior of the building (B) a mechanical exhaust system providing a complete change of air every 15 minutes, discharging outside of the building (C) a mechanical exhaust system providing a complete change of air every 20 minutes, discharging to an approved location within the building (D) a mechanical exhaust system providing a complete change of air every 20 minutes, discharging outside the building |
(D) a mechanical exhaust system providing a complete change of air every 20 minutes, discharging outside the building
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1106.7.2 |
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Except as modified by this code, refrigeration systems shall comply with ____.
(A) Fire Code (B) Building Code (C) ASHRAE 15 (D) Electrical Code |
(C) ASHRAE 15
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1102.1 |
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Where temperatures can drop below freezing condensate drains shall be installed with _____.
(A) a slope greater than 1/4 inch per foot (B) an air gap (C) a vent (D) heat tracing and insulation |
(D) heat tracing and insulation
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1106.10 |
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Refrigerator systems require a refrigeration machinery room in all of the following conditions except _____.
(A) the quantity of refrigerant in a single, independent refrigerant circuit of a system exceeds Table 1102.2 amounts (B) systems containing more than 35 pounds of refrigerant R-717 (C) systems containing less than 35 pounds of refrigerant R-717 and located in an approved exterior location (D) indirect-fired absorption equipment with systems containing more than 35 pounds of refrigerant R-717 |
(C) systems containing less than 35 pounds of refrigerant R-717 and located in an approved exterior location
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1107.1.4(4) |
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Access to refrigeration machinery rooms shall be restricted to ____ and posted with a permanent sign.
(A) maintenance staff (B) authorized personnel (C) the building engineer (D) the service technician |
(B) authorized personnel
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1107.2 |
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Refrigeration machine rooms shall have an unobstructed walking space at least ___ in width and ___ in height, allowing free access to at least two sides of all moving machinery.
(A) 2 feet, 6 feet (B) 2 feet; 6 feet, 8 inches (C) 3 feet, 6 feet (D) 3 feet; 6 feet, 8 inches |
(D) 3 feet; 6 feet, 8 inches
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1107.2 |
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Machinery rooms shall have approved ____ located in an area where ____ is likely to concentrate.
(A) smoke detectors, smoke (B) smoke alarms, smoke (C) alarms, a refrigerant leak (D) refrigerant vapor detectors, refrigerant from a leak |
(D) refrigerant vapor detectors, refrigerant from a leak
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1107.4 |
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Makeup air intakes to replace the exhaust air shall be provided to the refrigeration machinery room directly from _____.
(A) the return air plenum (B) the elevator shaft (C) the occupied space from which it serves (D) outside the building |
(D) outside the building
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1108.1 |
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Open flames or devices having exposed surface temperatures exceeding ___°F are prohibited in refrigeration machinery rooms.
(A) 212 (B) 300 (C) 600 (D) 800 |
(D) 800
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1107.7 |
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Refrigeration machinery rooms shall be provided with ____.
(A) adequate return air (B) restrooms as required by the plumbing code (C) temperature relief dampers (D) a continuous source of outside air for ventilation |
(D) a continuous source of outside air for ventilation
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1108.1 |
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Refrigeration machinery rooms shall be separated from other portions of the building by ____.
(A) 1 hour fire-resistive construction (B) 2 hour fire-resistive construction (C) a separation as required by the special hazards provisions of the Building Code (D) noncombustible construction |
(C) a separation as required by the special hazards provisions of the Building Code
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1107.5 |
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Fans providing emergency purge ventilation for refrigerant escape shall have a clearly identified switch of the break-glass type providing "on" only control _____.
(A) located in the fire command control center (B) as per the Fire code (C) in the building engineers office (D) adjacent to the refrigerant machinery room exit |
(D) adjacent to the refrigerant machinery room exit
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1108.5 |
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The ventilation exhaust from a refrigeration machinery room shall be discharged not less than ___ feet from a property line or building opening.
(A) 5 (B) 10 (C) 15 (D) 20 |
(D) 20
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1108.7 |
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Makeup air intakes to replace exhaust air shall be provided to refrigeration machinery rooms _____.
(A) directly from outside of the building (B) from other interior rooms or spaces (C) when infiltration is insufficient (D) when exhaust quantities exceed two air changes per hour |
(A) directly from outside of the building
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1108.9 |
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Pressure vessels with ___ cubic feet internal gross volume or less may use a single pressure-relief device or a fusible plug.
(A) 4 (B) 6 (C) 2 (D) 3 |
(D) 3
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1117.2 |
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Material stored in a refrigeration machinery room shall be as permitted in the ____ Code.
(A) Building (B) Property Maintenance (C) Fire (D) Mechanical |
(C) Fire
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1109.3 |
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An emergency control switch shall be provided to shut off all electrically energized equipment and devices within the refrigeration machinery room. The control switch must _____.
(A) be inside the refrigerant machinery room (B) be located within 5 feet of the machinery room exit (C) be located in the fire command center as per the Fire Code (D) provide "off" only control |
(D) provide "off" only control
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1109.4 |
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Electrically energized equipment within the refrigeration machine room shall automatically be shut down when the concentration of refrigerant vapor exceeds ____ percent of the LFL.
(A) 10 (B) 25 (C) 35 (D) 50 |
(B) 25
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1109.4 |
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All materials and equipment used in the construction and installation of mechanical refrigerating systems shall ____.
(A) be supplied by the building owner (B) meet the requirements of the Life Safety Code (C) be protected from freezing (D) be suitable for the refrigerant in the system |
(D) be suitable for the refrigerant in the system
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1110.1 |
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Soft annealed copper tubing installed in mechanical refrigerating systems shall be of a nominal size not larger than ___ inch.
(A) 11/2 (C) 1 (B) 13/8 (D) 3/4 |
(B) 13/8
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1111.3 |
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No mechanical joint shall be made in a mechanical refrigerating system in soft annealed copper larger than __ inch nominal size.
(A) 3/8 (B) 1/2 (C) 3/4 (D) 1 |
(C) 3/4
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1111.3
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Copper tubing conveying a refrigerant of a mechanical refrigerating system may be enclosed in iron or steel piping conduit, molding, or raceway with or without previous visual inspection by the Authority Having Jurisdiction provided _____.
(A) no fittings or joints are concealed (B) all joints are brazed (C) pressures do not exceed 300 pounds per square inch (D) only Group Al refrigerant is used |
(A) no fittings or joints are concealed
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1111.4 |
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Iron and steel pipe containing refrigerants of a mechanical refrigerating system may have ____ pipe joints.
(A) soldered (B) liquid tight (C) insulated (D) threaded, flanged or welded |
(D) threaded, flanged or welded
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1111.7 |
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A stop valve shall be installed in the refrigerant piping of every mechanical refrigerating system at the following location(s):
(A) at the inlet of every positive displacement compressor (B) at the outlet of every positive displacement compressor (C) at the refrigerant outlet of every liquid receiver (D) A, B, and C |
(D) A, B, and C
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1112.1 |
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A stop valve shall be installed in all refrigerant inlet piping of every pressure vessel connected to a positive displacement compressor when the internal gross volume of the pressure vessel exceeds __ cubic feet.
(A) 2 (B) 3 (C) 5 (D) 10 |
(B) 3
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1112.3 |
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Evaporators located within __ inches of a heating element or coil shall be fitted with a pressure-relief device.
(A) 18 (B) 24 (C) 30 (D) 36 |
(A) 18
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1114.4 |
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A ____ valve shall not be installed between a pressure-relief device and the portion of the system protected thereby.
(A) flow control (B) pressure-reducing (C) stop (D) temperature relief |
(C) stop
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1114.6 |
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A pressure-relief valve installed in a refrigeration system that discharges from the high-pressure side into the low-pressure side of the system shall be of a type that is not affected by ____.
(A) freezing (B) back pressure (C) heat (D) pressure fluctuations |
(B) back pressure
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1117.8 |
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Each part of a refrigeration system having internal diameters over 6 inches that may be shut off by valves from other parts of the system shall be equipped with a(n) ____.
(A) pressure-relief device (B) expansion valve (C) stop valve (D) check valve |
(A) pressure-relief device
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1114.5 |
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Pressure vessels of 10 cubic feet or more internal gross volume shall use a ____.
(A) fusible plug (B) single pressure-relief device (C) stop valve (D) single rupture member or dual pressure-relief valve |
(D) single rupture member or dual pressure-relief valve
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1117.2 |
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Pressure vessels of a refrigeration system having an internal gross volume of more than 3 cubic feet but less than 10 cubic feet may use a(n) ____.
(A) fusible plug (B) rupture member (C) single pressure-relief device (D) expansion valve |
(C) single pressure-relief device
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1117.2
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A compressor or portion of a condensing unit supported from the ground shall rest on a concrete or other approved base not less than __ inches above the adjoining ground level.
(A) 2 (B) 3 (C) 4 (D) 6 |
(B) 3
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1106.2 |
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At least __ gallon(s) of fresh water shall be provided for each pound of Ammonia in the system.
(A) 2 (B) 6 (C) 3 (D) 1 |
(D) 1
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1120.1 |
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The area of the discharge pipe from a pressure-relief device or fusible plug shall be ____ the outlet area of the device or plug.
(A) one-fourth (B) one-half (C) the same size or larger than (D) two times |
(C) the same size or larger than
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1118.1 |
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Systems containing other than A1 or B1 refrigerants shall discharge into the atmosphere and require an approved ___.
(A) flaring device (B) pressure-relief device (C) rupture member (D) fusible plug |
(A) flaring device
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1119.1 |
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Ammonia shall be discharged into _____.
(A) the atmosphere (B) a tank of water designed exclusively for ammonia absorption (C) a listed ammonia recovery vessel (D) a flaring device |
(B) a tank of water designed exclusively for ammonia absorption
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1120.1 |
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Refrigerant-vapor detection and alarm systems shall be installed, maintained, and tested in accordance with the ____ Code.
(A) Building (B) Life Safety (C) Fire (D) Mechanical |
(C) Fire
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1121.4 |
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Refrigerant-containing parts of units shall be tested and provided tight by the ____ at the design pressure for which they are rated.
(A) Authority Having Jurisdiction (B) manufacturer (C) contractor (D) Fire Code |
(B) manufacturer
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1124.1 |
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Alarms shall be activated within the space and as required in Section 1121.3 whenever the refrigerant vapor ___ is exceeded.
(A) OEL (B) EFV (C) PEX (D) AHU |
(A) OEL
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1121.1 |
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A dated declaration of test shall be provided for systems containing ____ pounds or more of refrigerant.
(A) 100 (B) 80 (C) 75 (D) 55 |
(D) 55
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1124.4 |
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Refrigeration systems shall be operated and maintained as required by the ____ Code.
(A) Building (B) Fire (C) Mechanical (D) Life Safety |
(B) Fire
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1125.1 |
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Pressure-relief valves and rupture members shall actuate or rupture at a setting _____.
(A) 90 percent of the maximum design pressure (B) 110 percent of the high side pressure (C) not exceeding the design pressure of the parts protected (D) below the high side pressure of the entire unit |
(C) not exceeding the design pressure of the parts protected
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1115.0 |
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Piping and fittings that may condense water and cause a hazard or damage shall ____.
(A) not be used (B) be isolated in a refrigeration machinery room (C) be sloped so condensate will run back to the equipment (D) be protected to prevent such an occurrence |
(D) be protected to prevent such an occurrence
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1106.9 |
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Stop valves shall be identified by tagging in accordance with the ____ standard for identification.
(A) reference (B) Fire Code (C) Building Code (D) ASHRAE 15 |
(A) reference
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1112.4 |
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Cooling towers shall ______.
(A) be readily accessible (B) be located near the mechanical room (C) have access to the fan portion (D) have chemical treatment systems |
(A) be readily accessible
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1127.1 |
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The plume discharge from a cooling tower shall _____.
(A) be at least 5 feet above a ventilation inlet (B) direct its airstream toward occupied spaces (C) be at least 25 feet away from the ventilation inlet (D) be located as required by the Building Code |
(C) be at least 25 feet away from the ventilation inlet
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1131.1 |
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When chemicals are used in a chemical treatment system that present a contact hazard, ______.
(A) warning signs must be posted (B) an approved emergency eyewash and shower facilities shall be installed (C) a floor drain must be installed in the area (D) directions to the emergency treatment must be posted |
(B) an approved emergency eyewash and shower facilities shall be installed
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1130.1 |
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Air Conditioning refrigerant circuit access ports located _____ shall be protected from unauthorized access.
(A) within 6 inches of grade (B) outdoors (C) on the roof (D) on a platform |
(B) outdoors
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1106.14 |
