ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: 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

2: Defined process piping by code CMR (528)

  • Any piping that conveys a solid, liquid or gas that is not part of the plumbing or fire protection system
  • Any piping in an industrial space
  • Any piping in an industrial or commercial space
  • All of the above

3: Pressure relief devices are marked with a ____________ signifying compliance with the ASME Boiler & Pressure Vessel Code.

  • UL and UM
  • UM or UL
  • UL and UR
  • UV or UR

4: A restaurant is classified as a

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

5: What is the refrigerant dichlorodifluoromethane?

  • R-22
  • R-12
  • R-134A
  • R-123

6: When liquid receivers are used, the liquid refrigerant shall not exceed _______percent of the volume at 90F.

  • 75%
  • 99%
  • 80%
  • 90%

7: How many refrigerant classifications are there for flammability?

  • 3
  • 2
  • 7
  • 1

8: A class B1 refrigerant is considered

  • non-toxic and non-flammable
  • toxic and somewhat flammable
  • toxic but non-flammable
  • non-toxic but highly flammable

9: Pressure vessels with an internal volume of 3 cubic feet or less

  • shall use fusible plugs
  • shall use pressure relief devices or fusible plugs
  • do not need pressure relief protection
  • shall use pressure relief devices

10: How many flammability classifications are refrigerants in?

  • 7
  • 2
  • 5
  • 3

11: What would be the classification of a prison?

  • Institutional
  • Place of assembly
  • Industrial
  • Large mercantile

12: Group A3 refrigerants have a ______ flammability rating than Group B1 refrigerants

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

13: Who authorizes changes to the safety codes?

  • Contractor who last serviced the system.
  • Person in charge of the facility
  • Board of Boilers
  • Person who pulled the permit

14: Pressure-limiting device isn't required on a factory-sealed system containing less than ____ lbs.

  • 50
  • 18
  • 33
  • 22

15: Pressure vessels nameplate markings must be compliant with the

  • ASHRAE 34 Standards
  • CMR-588 & CMR-528
  • ASME Boiler and Pressure Vessel Code
  • All of the Above

16: The color code of a tank of ammonia is

  • silver
  • light green
  • white
  • lavender

17: 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
  • service manuals
  • safe access
  • manufactures instructions on start-up procedures

18: What type of refrigerants are NOT flammable?

  • CHC
  • HFC
  • HCFC
  • All of the above

19: When a refrigerating machinery room is used, the emergency procedures shall be posted

  • outside the room, immediately adjacent to each door
  • on a conspicuous card located near the compressor
  • on a conspicuous card located near the evaporator
  • inside the room, immediately adjacent to each door

20: Which refrigerant(s) is an HFC?

  • R-22
  • R-410A
  • R-502
  • All of the above

21: What type of material can't be used on the outlet of a relief valve?

  • Stainless steel
  • Magnesium alloy
  • Copper
  • PVC

22: Refrigeration piping before being buried shall be

  • leak tested
  • encased in pipe duct
  • pressure tested
  • All of the above

23: Relief valves are rated in

  • pounds of air per hour
  • pounds of air per minute
  • gallons of water per hour
  • gallons of water per minute

24: How much refrigerant can be stored in a mechanical room outside of the system?

  • 100
  • 150
  • 330
  • 200

25: 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.
  • business occupancy
  • commercial occupancy
  • mercantile occupancy