ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Evaporators located ____inches of a heating coil shall be equipped whit a pressure relief device.

  • 10
  • 18
  • 15
  • 24

2: An evaporator coil located near heating coil shall have a pressure-relief device installed within ______ inches of the evaporator.

  • 36
  • 48
  • 24
  • 18

3: When an inspection is needed, how often must it be done?

  • annually
  • every 18 months
  • every 24 months
  • every 36 months

4: When must refrigeration system covered by the code be inspected?

  • Upon installation
  • Annually and when installed
  • Annually
  • Not required

5: A premise where large numbers of people congregate and from which occupants can not quickly vacate the space is considered

  • commercial occupancy
  • mixed occupancy
  • institutional occupancy
  • public assembly occupancy

6: The total amount of refrigerant stored in a machinery room in all containers not provided with relief valves shall not exceed

  • 550 lbs
  • 330 lbs.
  • 55 lbs
  • 660 lbs

7: Before determining if a machinery room equipment is excluded from following Ashrae 15, you must determine how many pounds of refrigerant per _____ cubic feet?

  • 1,000
  • 100,000
  • 10,000
  • 100

8: What is an example of institutional occupancy?

  • Hospital
  • Football stadium
  • Dorms
  • Shopping mall

9: Dual-pressure relief devices should be installed on

  • vessels of 10 cubic feet or more
  • vessels of 3 cubic feet or less
  • vessels of 3 cubic feet or more
  • vessels of 10 cubic feet or less

10: Liquid level gauges must be provided with what?

  • A relief valve
  • A low level mark
  • Automatic shut-offs
  • A red line

11: 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

12: The Department that certifies the transportation of refrigerant is the

  • DOT
  • EPO
  • RSES
  • EPA

13: Industrial occupancy is

  • a premise or that portion of a premise that is not open to the public, where access by authorized persons is controlled, and that is used to manufacture, process, or store goods, such as chemicals, food, ice, meat, or petroleum.
  • is a premise or that portion of a premise where large number of people congregate and from which occupants cannot quickly vacate the space.
  • a premise or that portion of a premise where people transact business, receive personal service, or purchase food and other goods.
  • Both a and b are correct

14: The total amount of refrigerant stored in a machinery room in all containers not provided with relief valves shall not exceed

  • 55 lbs
  • 500 lbs
  • 660 lbs
  • 330 lbs

15: Low temperature systems should have what?

  • High pour point
  • Low pour point
  • High viscosity
  • None of the above

16: A pressure vessel having an inside diameter of 6” or less shall be sufficient to withstand ____times the pressure of the saturation temperature of the refrigerant or ____times the critical pressure of the refrigerant, whichever is less.

  • 2.5, 3.0
  • 3.0, 3.5
  • 6.6, 6.6
  • 2.5, 2.5

17: What refrigerant were phased out in 2004?

  • R-12
  • R-134a
  • R-11
  • R-22

18: Name an HCFC refrigerant(s):

  • R-22
  • R-123
  • R-11
  • both a & b

19: Refrigerants shall be classified by

  • toxicity and flammability
  • color codes
  • maximum permissible quantities of each group
  • requirements for commercial, industrial, and residential occupancies

20: What would be the classification of a church?

  • Industrial
  • Place of assembly
  • Institutional
  • Large mercantile

21: A professional or office building would be considered what type of occupancy?

  • public assembly
  • business
  • mercantile
  • commercial

22: What do you need to do when you install a new system?

  • Document the superheat and subcooling reading
  • Insulate the suction line before you take a superheat reading
  • Add refrigerant
  • Have it inspected

23: All machine rooms must be outfitted with a detector that _______?

  • activates an audible alarm
  • activates a visual alarm
  • starts the ventilation system
  • All of the above

24: R-22 is classified as a ____ refrigerant on the safety matrix.

  • A-2
  • B-2
  • A-1
  • B-1

25: What refrigerant doesn't have to be classifted?

  • R-718
  • R-711
  • R-717
  • R-134a