ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Insurance companies shall forward each inspection report of all refrigeration or A/C systems to the Chief of Inspections within

  • 30 days
  • 14 days
  • 2 months
  • 1 week

2: Which occupancy can ammonia be used in?

  • commercial
  • depends on the quantity of freon
  • redifential
  • industrial

3: What type of refrigerants are NOT flammable?

  • CHC
  • HFC
  • HCFC
  • All of the above

4: Pressure vessels having design pressures of 15 psig or less shall have the strength to withstand at least ______times the design pressure.

  • 3.0
  • 2.5
  • 5.5
  • 2.0

5: 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

6: What is an egress?

  • A code violation
  • An entrance or exit
  • A valve put on the low side of the system to prevent frosting
  • An escape route

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

  • Encased
  • Leaked checked
  • Coated
  • Certified

8: Can you use Ammonia in industrial applications?

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

9: The test pressure applied to the high side of each factory-assembled refrigerating system shall be at least equal to the design pressure of

  • the high side
  • 2.5 times the design pressure
  • the aggregate of the high side and low side
  • the low side

10: A plug containing an alloy that will melt at a specific temperature to relief pressure is a

  • fusible plug
  • relief plug
  • rupture plug
  • fusion plug

11: All welding done on any refrigeration system or piping covered by 522 CMR 9.00 shall be performed by a according to Section IX of the ASME code

  • competent welder
  • licensed technician
  • welder qualified
  • licensed welder

12: The discharge relief valve is located (9.4.6)

  • between the compressor and reciever
  • between the compressor and oil separator
  • on top of the condensor
  • between the compressor and the stop valve

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

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

14: 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

15: 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.

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

16: Pressure vessels having an inside diameter of 6” or less shall be protected by

  • Pressure vessels having an inside diameter of 6” or less need no such protection unless otherwise specified
  • a pressure relief device
  • a fusible plug
  • either a fusible plug or a pressure relief device

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

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

18: What does safe access mean?

  • Well-lit exit signs
  • A clear unobstructed path to the equipment and controls
  • Locked doors
  • OSHA approved

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

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

20: 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

21: 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

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

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

23: Refrigeration piping before being buried shall be

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

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

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

25: What is the minimum size of the discharge pipe?

  • Same size as the outlet of the relief valve
  • One pipe size larger that the inlet of the relief valve
  • Depends on size of manifold
  • All of the above