ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: The certificate of inspection

  • shall be posted on the compressor shell or electrical panel at the unit
  • shall be authorized by a notarized insurance company
  • shall be $20 and an additional fee of $1 for each tone above 20 tons
  • shall be posted and protected from dirt, water, and other elements

2: When testing systems using non-positive displacement compressors, the entire system shall be considered for test purposes as the low side.

  • True
  • False

3: Who approves containers for refrigerants?

  • E.P.A
  • D.O.D
  • D.O.T
  • D.O.E

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

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

5: An evaporator coil located near heating coil shall have a pressure-relief device installed within ______ inches of the evaporator.

  • 36
  • 18
  • 24
  • 48

6: Whoever owns/uses a refrigeration or air conditioning system covered by this code

  • must notify the Department of Public Safety prior to starting the system
  • shall be licensed by the Commonwealth of Massachusetts according to CMR 522
  • shall make application for inspections to the Chief of Inspectors
  • None of the above

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

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

8: 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

9: A Category D fluid

  • is when the fluid handled is non flammable, nontoxic, and not damaging to human as defined in ANSI/ASME Process Piping.
  • is when the design pressure does not exceed 150 psi
  • a fluid for service piping in which the potential for personnel exposure is judged to cause harm and irreversible damage to those persons exposed to it
  • Both a and b are correct

10: The Board of Boilers adopts by reference

  • Montreal Protocol Safety Code
  • the 1997 ANSI/ASHRAE Safety Code
  • the MACS Pressure Vessel Code of Massachusetts
  • MSCA Code

11: Name an HCFC refrigerant(s):

  • R-22
  • R-123
  • R-11
  • both a & b

12: 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 pressure relief devices or fusible plugs
  • shall use fusible plugs

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

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

14: A restaurant is classified as a

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

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

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

16: A premise or that portion of a premise where people transact business, receive personal service, or purchase foods, other goods is considered a

  • public assembly occupancy.
  • business occupancy
  • mercantile occupancy
  • commercial occupancy

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: 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.

  • 110
  • 100
  • 90
  • 80

19: Which refrigerant class listed below is the most flammable?

  • A-1
  • A-3
  • C-3
  • B-2

20: Liquid level gauges must be provided with what?

  • Automatic shut-offs
  • A relief valve
  • A low level mark
  • A red line

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

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

22: R-123 belongs to Group

  • B-1
  • A-3
  • B-3
  • B-2

23: 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

24: The total amount of refrigerant stored in a machinery room in all containers not provided with relief valves shall not exceed

  • 550 lbs
  • 660 lbs
  • 330 lbs.
  • 55 lbs

25: Liquid level gauges shall have _____________ with one exception being that of the liquid level gauge bull’s eye type.

  • color-coded glass to determine type of refrigerant
  • moisture indicators
  • automatic closing shut-off valves
  • All of the above