ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

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

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

2: A class B2 refrigerant is considered

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

3: Field Inspections of refrigeration and A/C systems in Massachusetts shall be made by

  • District Engineering Inspectors
  • Commissioned Inspectors
  • Master licensed Technician
  • both a or b

4: 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

5: A restaurant is classified as a

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

6: What refrigerant were phased out in 2004?

  • R-22
  • R-134a
  • R-11
  • R-12

7: A room having machinery but no flame producing apparatus permanently installed and operated is considered a

  • Class B machinery room
  • Class M machinery room
  • Class T machinery room
  • Class A machinery room

8: Name an HCFC refrigerant(s):

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

9: All serviceable components of a refrigeration system shall be provided with

  • manufactures instructions on start-up procedures
  • service manuals
  • name plates with markings referring to pressure and temperature in accordance with ASME Boiler and Pressure Vessel Code
  • safe access

10: What type of relief valve is used on low pressure centrifugal compressor systems?

  • Spring-loaded relief valve
  • Rupture disc
  • Purge relief
  • None of the above

11: Doors communicating with outside from a mechanical room must be?

  • Self-closing, aligned, fire door
  • Steel, approved, weather-stripped
  • Self-closing, approved, fire door
  • Self-closing, wooden, fire door

12: Pressure limiting devices are not required for systems containing less then ________ refrigerants.

  • 6.6 lbs
  • 44 lbs
  • 13.9 lbs
  • 22 lbs

13: Most CFC's are

  • flammable
  • toxic
  • inert but toxic
  • inert

14: B3 refrigerants are considered

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

15: How far from the ground does a relief valve need to be?

  • At least 20' above grade
  • At least 15' above grade
  • At least 25' above grade
  • Not more than 3' above grade

16: What type of pressure relief device is used on a CO2 system?

  • Glove valve
  • Fusible plug
  • Rupture disk
  • Gate valve

17: Dual-pressure relief devices should be installed on

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

18: Halogen refrigerants are corrosive to which type of metal?

  • magnesium
  • copper
  • stainless steel
  • black iron

19: Refrigeration piping before being buried shall be

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

20: Group A1 refrigerants over ____ pounds in a system must discharge to the atmosphere

  • 6.6
  • 330
  • 1,000
  • 110

21: The certificate of inspection

  • shall be authorized by a notarized insurance company
  • shall be posted and protected from dirt, water, and other elements
  • shall be $20 and an additional fee of $1 for each tone above 20 tons
  • shall be posted on the compressor shell or electrical panel at the unit

22: 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

23: Ashrae states that the equipment on a building needs to conform to adjacent buildings classifications when within ____ feet from opening and intakes.

  • 50
  • 20
  • 75
  • 15

24: When is the space above a drop ceiling calculated as space for refrigerant limit quantities?

  • When there are sprinklers above
  • When it's used as part of a supply or return air system
  • When its white
  • When there is a space 6' or more above it

25: 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
  • 10,000
  • 100
  • 100,000