ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Single compound Refrigerants are classified by what two criteria?

  • Flammability and toxicity
  • Temperature range and hazardousness
  • Weight and color
  • Flammability and temperature range

2: Class A refrigerants are considered

  • non-toxic
  • toxic
  • flammable
  • non-flammable

3: What would be the classification for Stop & Shop grocery store?

  • Industrial
  • Place of assembly
  • Instituional
  • Large mercantile

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

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

5: Pressure vessels with an internal volume of 10 cubic feet or more

  • shall use fusible plugs
  • shall use rupture discs or duel pressure relief valves
  • shall use pressure relief devices
  • shall use pressure relief devices or fusible plugs

6: A total of all group A-2,B-2, A-3, and B-3 refrigerants shall not exceed ____ lb in the occupied areas and machinery rooms of institutional occupancies.

  • 100
  • 550
  • 350
  • 50

7: R-22 is considered a(n)

  • HFC
  • HCFCH
  • CFC
  • HCFC

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

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

9: How much clearance do you need around the perimeter of electrical panels?

  • 18"
  • 24"
  • 12"
  • 36"

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

  • PVC
  • Stainless Steel
  • Aluminum
  • Copper

11: What must be done to all doors and access points in duct work going through a mechanical room?

  • Must be hindged
  • Must be screwed shut
  • Must be sealed and gasketed
  • All of the above

12: Pressure relief valves shall be marked with the data from

  • Section I Division VIII of ASME Boiler & Pressure Code
  • Section XIII Division of the ASME Boiler & Pressure Code
  • Section IV Division of the ASME Boiler & Pressure Code
  • Section VIII Division of the ASME Boiler & Pressure Code

13: Indirect systems using Group II refrigerants

  • shall be used in refrigeration system in excess of 1,000 lbs
  • shall be used in refrigeration system less than 1,000 lbs
  • shall have all refrigerant containing parts except piping, installed in a Class T machine room
  • shall be used for mechanical equipment only

14: Which refrigerant was still able to be vented to the atmosphere after July 1, 1992?

  • R-22
  • R-11
  • R-12
  • R-113

15: 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.

16: Where must a refrigeration contractor's license number be displayed?

  • Trucks, license plates, and uniforms
  • Trucks, invoices, and advertising
  • Truck, office, every job, and on all equipment
  • Uniforms, checks, and invoices.

17: Stop valves shall not be permitted between the system and the

  • relief valve
  • bleed valve
  • condenser
  • service valve

18: 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

19: 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

20: What type of refrigerants are NOT flammable?

  • CHC
  • HFC
  • HCFC
  • All of the above

21: Which refrigerant(s) is an HFC?

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

22: A restaurant is classified as a

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

23: What would be the classification of a church?

  • Industrial
  • Large mercantile
  • Institutional
  • Place of assembly

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

  • True
  • False

25: Liquid shall not occupy more than ____ of the volume when the temperature of the refrigerant is 90F.

  • 80%
  • 90%
  • 100%
  • 75%