Topics: ASHRAE/CMR
1: What is Trichlorotrifluoromethane?
- R-12
- R-13
- R-113
- R-11
2: What was the main reason for enacting the no venting rule of July 1, 1992?
- Ozone depletion
- Green house effect
- Global warming potential
- All of the above
3: What kind of material can't be used on the outlet of a relief valve?
- PVC
- Stainless Steel
- Copper
- Aluminum
4: What happens after your initial inspection of a pressure vessel?
- Notify the AHJ to let them know that the system been inspected
- Inspector leaves a metal tag with a certification listed on it
- There is a temporary shut-down until a final inspection can be performed.
- Notify the Fire Marshal that the system has been inspected and approved
5: NH3 is
- R-508A
- lithium bromide
- R-718
- ammonia
6: R-717 is
- carbon dioxide
- ammonia
- water
- trichloromethane
7: What is the intention of the word “should” as used in the code?
- A mandatory requirement
- A recommendation or advisory guideline
- A technician’s choice of how it should be done
- None of the Above
8: Fusible plugs must have what marked on them?
- Melting temperature in F
- Melting temperature in C
- Opening pressure
- All of the above
9: Pressure vessels having an inside diameter of 6” or less shall be protected by
- a pressure relief device
- a fusible plug
- either a fusible plug or a pressure relief device
- Pressure vessels having an inside diameter of 6” or less need no such protection unless otherwise specified
10: Systems containing more than 110 pounds must have stop valves located at the
- compressor suction inlet
- compressor discharge outlet
- receiver inlet and outlet
- All of the above
11: Ashrae states that the equipment on a building needs to conform to adjacent buildings classifications when within ____ feet from opening and intakes.
- 15
- 20
- 50
- 75
12: pressure relief valves must discharge to the atmosphere at a location not less than 15 feet from ground level and ____ feet from any window, ventilation opening, or exits of buildings.
- 10
- 15
- 20
- 25
13: Emergency shutdown procedures, including precautions to be observed in case of a breakdown or leak over 55 lbs of refrigerant charge, shall be displayed on a conspicuous card located as near as possible to the
- boiler
- evaporator
- outside the machinery room
- compressor
14: A class B2 refrigerant is considered
- non-toxic and non-flammable
- toxic and non-flammable
- non-toxic and highly flammable
- toxic and somewhat flammable
15: When must refrigeration system covered by the code be inspected?
- Annually
- Not required
- Upon installation
- Annually and when installed
16: All serviceable components of a refrigeration system shall be provided with
- name plates with markings referring to pressure and temperature in accordance with ASME Boiler and Pressure Vessel Code
- manufactures instructions on start-up procedures
- service manuals
- safe access
17: What is R-290’s ASHRAE safety code?
- A2
- A3
- B1
- B2
18: What is R-611’s ASHRAE Safety Code?
- B3
- B2
- C3
- A2
19: What type of material can't be used on the outlet of a relief valve?
- Copper
- Stainless steel
- PVC
- Magnesium alloy
20: Halogenated refrigerants cannot be used with what material?
- Magnesium alloy
- Aluminum
- Copper
- Stainless steel
21: Pressure vessels with an internal volume of 3 cubic feet or less
- shall use pressure relief devices
- do not need pressure relief protection
- shall use fusible plugs
- shall use pressure relief devices or fusible plugs
22: Evaporators located ____inches of a heating coil shall be equipped whit a pressure relief device.
- 18
- 10
- 15
- 24
23: A premise where large numbers of people congregate and from which occupants can not quickly vacate the space is considered
- public assembly occupancy
- institutional occupancy
- commercial occupancy
- mixed occupancy
24: What would be the classification of a church?
- Institutional
- Large mercantile
- Industrial
- Place of assembly
25: A person holding a license as a refrigeration technician may connect or disconnect for the purpose of installation, repair, or replacement, any electrical device or control to be a part of a refrigeration or air conditioning system, from the
- 24 volt secondary side of the Class 2 transformer to the thermostat
- load-side of the contactor in
- first disconnect in
- breaker panel in