ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Ammonia is under what safety classification?

  • A3
  • B2
  • B3
  • B1

2: A class B1 refrigerant is considered

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

3: Refrigerant piping crossing an open space that affords passageway in any building shall not be less than _____ feet above the floor unless piping is located against the ceiling.

  • 7.25'
  • 8'4"
  • 7.00'
  • 9.00'

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

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

5: A declaration test is needed when the system contains more than

  • 110 lbs
  • 65 lbs
  • 120 lbs
  • 55 lbs

6: What section of ASHRAE-15 governs pressure vessels?

  • OSHA
  • Section 6 ASHRAE-34 ASME VIII unfired
  • Section 9 ASHRAE-15 ASME VIII unfired
  • Section 7 ASHRAE-15 ASME VIII fired

7: Institutional occupancy is

  • a premise or that portion of a premise where large numbers of people congregate and from which occupants cannot quickly vacate the space.
  • a premise or that portion of a premise from which, because they are disabled, debilitated, or confined, occupants cannot readily leave without the assistance of others.
  • a premise or that portion of a premise where people transact business, receive personal service, or purchase food and other goods.
  • None of the above

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

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

9: What would be the classification of a church?

  • Place of assembly
  • Institutional
  • Industrial
  • Large mercantile

10: R-22 falls under which safety classification?

  • B-1
  • A-2
  • A-1
  • B-2

11: 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

12: Pressure vessels with an internal volume of 3 cubic feet or more

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

13: Which refrigerant replaced R-12?

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

14: The 522 CMR 9.00 has adopted for reference ASHRAE ____

  • 10
  • 25
  • III
  • 15

15: What type of refrigerants are NOT flammable?

  • CHC
  • HFC
  • HCFC
  • All of the above

16: A premise or that portion of a premise where large numbers of people congregate and from which occupants cannot quickly vacate the space such as auditoriums, ballrooms, classrooms, passenger depots, restaurants, and theaters is considered a(n)

  • public assembly occupancy
  • illegal occupancy
  • commercial occupancy
  • institutional occupancy

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

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

18: Can you use Ammonia in industrial applications?

  • Yes, Under certain condidtions
  • When mixed with R-718
  • No, never
  • Yes, always

19: Name three things that must be done when changing refrigeration lubricant?

  • You can't change lubricants.
  • Make sure it's compatible, notify owner, notify AHJ
  • Place sign, check for leaks, insulate
  • Nothing must be done

20: 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

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

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

22: R-22 is classified as a ____ refrigerant on the safety matrix.

  • B-1
  • A-1
  • A-2
  • B-2

23: Name a CFC refrigerant(s):

  • R-11
  • R-12
  • R-123
  • both a & b

24: Trichlorofluoromethane is the name of what refrigerant?

  • R-113
  • R-12
  • R-11
  • R-502

25: Which refrigerant(s) is an HFC?

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