ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

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