ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Systems containing more than 110 pounds must have stop valves located at the

  • compressor suction inlet
  • compressor discharge outlet
  • receiver inlet and outlet
  • All of the above

2: 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

3: Pressure vessels shall be provided with ___________in accordance with Section VIII of the ASME Boiler & Pressure Vessel Code

  • Pressure vessels need no type of protection as long as it is hydrostatically tested every three months
  • over pressure protection and a rupture disc
  • over pressure protection
  • over pressure protection as well as a temperature protection device

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

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

5: Halogenated refrigerants cannot be used with what material?

  • Copper
  • Stainless steel
  • Magnesium alloy
  • Aluminum

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

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

7: How many refrigerant classifications are there for toxicity?

  • 1
  • 2
  • 5
  • 3

8: R-123 belongs to Group

  • B-2
  • A-3
  • B-3
  • B-1

9: When releasing a hydrogenated hydrocarbon refrigerant to the atmosphere, ample ventilation must be provided and

  • gas masks must be worn
  • explosion precautions must be taken
  • the owner shall be informed
  • no flames shall be permitted

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

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

11: Where a refrigeration or air conditioning system is installed,

  • The company who installed the system must notify the fire department in the jurisdiction where installed
  • A field inspection shall be made before it is put into service
  • it shall not be operated below prescribed pressuers
  • the form or certificate shall be authorized by the Department of Public Safety

12: Walls and doors of a machinery room shall be at least _____ hour(s) fire rated.

  • 1
  • 5
  • 3
  • 2

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

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

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

  • 10
  • 15
  • 24
  • 18

15: What would be the classification of a church?

  • Institutional
  • Industrial
  • Place of assembly
  • Large mercantile

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

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

17: A hotel is considered a _______ occupancy.

  • mercantile
  • commercial
  • residential
  • institutional

18: A factory-sealed system containing less than 22lbs. of Group A1 refrigerant

  • shall have a pressure limiting device installed on the high side of the system
  • shall have a pressure limiting device and a pressure relief valve installed
  • does not require a pressure-limiting device
  • shall be inspected by the Boiler of Inspectors bi-annually

19: What is R-22?

  • Chlorodifluoromethane
  • Chlorofluoromethane
  • CCFCM
  • HFC

20: When systems are protected by a high pressure relief device, the compressor's pressure limiting device shall be set at or below ____ % of the operating pressure of the high side relief device.

  • 100
  • 80
  • 90
  • 110

21: _____ and its alloys are suitable for use with ammonia systems.

  • Aluminum
  • Copper
  • Magnesium
  • Zinc

22: R-22 falls under which safety classification?

  • A-1
  • A-2
  • B-1
  • B-2

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

  • EPA
  • DOT
  • RSES
  • EPO

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

  • mercantile
  • commercial
  • business
  • public assembly

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

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