ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: When is the only time you can leave a service container attached to a system?

  • Leaking system
  • Recovery
  • Charging
  • Both b and c

2: What type of copper is not permitted on refrigeration systems?

  • Type L
  • Type K
  • Type N
  • Type M

3: How many refrigerant classifications are there for toxicity?

  • 3
  • 5
  • 1
  • 2

4: The ____ design is the maximum pressure for which a specific part of a refrigeration system is designed.

  • high pressure
  • design pressure
  • critical pressure
  • low pressure

5: A restaurant is classified as a

  • large mercantile occupancy
  • commercial occupancy
  • public assembly occupancy
  • mixed occupancy

6: 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

7: The dial of a pressure gauge, when installed on the high side of a system be graduated 1.2 times the designed pressure.

  • True
  • False

8: Liquid level gauge glasses shall have automatic closing shut off valves, except Bull's eye or reflex type.

  • True
  • False

9: What must be done to refrigerant pipes before being buried ?(8.10.4)

  • Certified
  • Classifed
  • Insulated and installed in a pipe duct (Encased)
  • Leak checked

10: A machine room with a refrigerant system using ammonia shall

  • be provided with a continuously operated ventilation system
  • be considered a non-hazardous location in accordance with National Electrical code
  • have no flame producing apparatus permanently installed and operated
  • All of the above

11: Group A2 refrigerants have a ______ toxicity rating than Group B1 refrigerants.

  • higher
  • there is no Group B1 refrigerants
  • the same
  • lower

12: A declaration test is needed when the system contains more than

  • 110 lbs
  • 65 lbs
  • 55 lbs
  • 120 lbs

13: 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

14: Refrigerant systems containing Group I refrigerants can be installed in or on public stairways.

  • True
  • False

15: When testing systems using non-positive displacement compressors, the entire system shall be considered for test purposes as the low side.

  • True
  • False

16: Where are the three places that the discharge from an ammonia relief valve be piped?

  • atmosphere, tank containing water, where the A.H.J. indicates
  • underground, into drain, into mechanical room
  • to chemical neutralizing tank only
  • none of the above

17: The color code of a tank of ammonia is

  • silver
  • white
  • light green
  • lavender

18: A “U” or “UM” marking a on a nameplate of a pressure vessels signifies compliance with Section VIII of

  • the ASME Boiler and Pressure Vessel Code
  • Section 11.3.1.5 ASHRAE 15 Standard
  • the ANSI Standard 10.7.2
  • both the ANSI Standard 10.7.2 and ASHRAE 15 Standard 11.3.1.5

19: copper and its alloys shall not be used in contact with _____ except as a component of bronze alloys for bearing or other non-refrigerant containing uses.

  • ammonia
  • HCFC-123
  • Lithium bromide
  • CFC-11

20: How far from the window does a relief valve need to be according to ASHRAE-15?

  • At least 40'
  • At least 30'
  • There is no minimum for relief valve and windows.
  • At least 20'

21: R-22 is considered a(n)

  • HCFC
  • CFC
  • HCFCH
  • HFC

22: There can be no airflow from an occupied space through a machine room unless what?

  • System is high velocity
  • System is ducted and sealed
  • Duct is not located in the ceiling
  • None of the above.

23: A premise or that portion of a premise where people transact business, receive personal service, or purchase foods, other goods is considered a

  • public assembly occupancy.
  • mercantile occupancy
  • business occupancy
  • commercial occupancy

24: What is R-611’s ASHRAE Safety Code?

  • B3
  • B2
  • C3
  • A2

25: Whoever owns/uses a refrigeration or air conditioning system covered by this code

  • must notify the Department of Public Safety prior to starting the system
  • shall be licensed by the Commonwealth of Massachusetts according to CMR 522
  • shall make application for inspections to the Chief of Inspectors
  • None of the above