Topics: ASHRAE/CMR
1: Pressure relief valves shall be marked with the data from
- Section VIII Division of the ASME Boiler & Pressure Code
- Section IV Division of the ASME Boiler & Pressure Code
- Section I Division VIII of ASME Boiler & Pressure Code
- Section XIII Division of the ASME Boiler & Pressure Code
2: Joints in piping for refrigeration containing parts must withstand temperatures of ___?
- 600F
- 800F
- 700F
- 1000F
3: _____ and its alloys are suitable for use with ammonia systems.
- Copper
- Magnesium
- Zinc
- Aluminum
4: What refrigerant were phased out in 2004?
- R-12
- R-11
- R-134a
- R-22
5: Large vessels containing refrigerant ______________________ from using two or more pressure-relief devices in parallel to obtain the required capacity.
- of Group B2 refrigerant shall be prohibited
- shall not be prohibited
- shall be prohibited
- containing R-11, R-123 & R-717 exclusively shall not be prohibited
6: Name three things that must be done when changing refrigeration lubricant?
- Make sure it's compatible, notify owner, notify AHJ
- Nothing must be done
- You can't change lubricants.
- Place sign, check for leaks, insulate
7: When is the space above a drop ceiling calculated as space for refrigerant limit quantities?
- When there are sprinklers above
- When its white
- When it's used as part of a supply or return air system
- When there is a space 6' or more above it
8: Single compound Refrigerants are classified by what two criteria?
- Flammability and toxicity
- Flammability and temperature range
- Temperature range and hazardousness
- Weight and color
9: What is an example of institutional occupancy?
- Shopping mall
- Dorms
- Hospital
- Football stadium
10: What section governs pressure vessels?
- Section ASHREA 34
- OSHA
- Section 8 ASHREA 15 ASME unfired
- Section 1 ASHREA 15 ASME fired
11: What refrigerant doesn't have to be classified?
- R-422A
- R-718
- R-134A
- R-717
12: The 522 CMR 9.00 has adopted for reference ASHRAE ____
- 15
- III
- 10
- 25
13: Pressure vessels having design pressures of 15 psig or less shall have the strength to withstand at least ______times the design pressure.
- 2.0
- 3.0
- 2.5
- 5.5
14: Can you use Ammonia in industrial applications?
- When mixed with R-718
- Yes, Under certain condidtions
- Yes, always
- No, never
15: Ammonia can come in contact with _______ ?
- Brass
- Copper tubing
- Copper
- Aluminum
16: Ammonia shall be discharged into ____________ or a tank containing one gallon of water for every pound of ammonia.
- the atmosphere
- a de-pressurized recovery tank with a silver top and yellow bottom
- a tank containing two pounds of a water/lithium bromide mix for every pound of ammonia
- All of the above
17: When must refrigeration system covered by the code be inspected?
- Annually
- Upon installation
- Annually and when installed
- Not required
18: Trichlorofluoromethane is the name of what refrigerant?
- R-12
- R-113
- R-11
- R-502
19: What would be the classification for Stop & Shop grocery store?
- Place of assembly
- Large mercantile
- Industrial
- Instituional
20: The Department that certifies the transportation of refrigerant is the
- EPO
- DOT
- RSES
- EPA
21: What is an egress?
- An escape route
- An entrance or exit
- A code violation
- A valve put on the low side of the system to prevent frosting
22: Methyl Chloride is a halogenated refrigerant and should not come in contact with
- aluminum
- zinc
- magnesium
- all of the above
23: The gauge thickness required on a CO2 tank construction is
- 5/16"
- 1/16"
- 1/8"
- 3/32"
24: 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
- first disconnect in
- breaker panel in
- load-side of the contactor in
25: Which occupancy can ammonia be used in?
- commercial
- industrial
- depends on the quantity of freon
- redifential