ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: What is not a requirement of a Class T machine room?

  • Self-closing doors
  • Fire hose connected to the building fire protection system.
  • Tight fitting doors
  • Automatic ventilation

2: Indirect systems using Group II refrigerants

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

3: R-717 is

  • trichloromethane
  • carbon dioxide
  • ammonia
  • water

4: Ammonia shall be discharged into ____________ or a tank containing one gallon of water for every pound of ammonia.

  • the atmosphere
  • a de-pressurized recovery tank with a silver top and yellow bottom
  • a tank containing two pounds of a water/lithium bromide mix for every pound of ammonia
  • All of the above

5: 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

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

  • 1,000
  • 6.6
  • 110
  • 330

7: Who authorizes changes to the safety codes?

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

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

  • 90%
  • 100%
  • 75%
  • 80%

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

  • Place of assembly
  • Large mercantile
  • Industrial
  • Instituional

10: 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

11: Low temperature systems should have what?

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

12: R-22 is considered a(n)

  • HFC
  • HCFC
  • HCFCH
  • CFC

13: Large Mercantile occupancy is a premise or that portion of a premise where more than ____ persons congregate on levels above or below the street level to purchase personal merchandise.

  • 100
  • 350
  • 250
  • 400

14: A restaurant is classified as a

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

15: What refrigerant has zero ozone depletion

  • HFC
  • CFC
  • HCFC
  • None of the above

16: What refrigerant is an inorganic compound?

  • R-22
  • R-132A
  • Ammonia
  • R-410A

17: 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

18: What is not a requirement of a class T machine room?

  • self-closing doors
  • automatic ventilation
  • tight fitting doors
  • fire hose connection to the building fire protection system

19: 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.

  • 350
  • 50
  • 100
  • 550

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

  • PVC
  • Magnesium alloy
  • Stainless steel
  • Copper

21: Which refrigerant replaced R-12?

  • R-134A
  • R-410A
  • R-22
  • R-407A

22: What must be done to refrigerant pipes before being buried?

  • Certified
  • Coated
  • Leaked checked
  • Encased

23: What section governs pressure vessels?

  • Section ASHREA 34
  • Section 1 ASHREA 15 ASME fired
  • Section 8 ASHREA 15 ASME unfired
  • OSHA

24: The ASHRAE Standard 34 requires what type of alarm for equipment rooms using HCFC-123?

  • A group sensing
  • refrigerant sensing
  • phosgene gas sening
  • CO Sensing

25: Which refrigerant(s) is an HFC?

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