ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: 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

2: 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'
  • 7.00'
  • 9.00'
  • 8'4"

3: A class B1 refrigerant is considered

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

4: Direct systems using Group II refrigerants

  • shall not be used for air condition for human comfort
  • shall be allowed to be used for human comfort.
  • shall be installed in Class T machinery rooms
  • shall be installed per instruction of the AHJ

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

  • 24
  • 18
  • 10
  • 15

6: Before determining if a machinery room equipment is excluded from following Ashrae 15, you must determine how many pounds of refrigerant per _____ cubic feet?

  • 100,000
  • 1,000
  • 100
  • 10,000

7: What refrigerant has zero ozone depletion

  • HFC
  • CFC
  • HCFC
  • None of the above

8: How many groups of refrigerants are there?

  • 7
  • 1
  • 5
  • 3

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

  • 90%
  • 80%
  • 75%
  • 100%

10: R-410A is classified as a ____ refrigerant on the safety matrix.

  • A-1
  • B-2
  • A-2
  • B-1

11: 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

12: Which refrigerant(s) is an HFC?

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

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

  • A-2
  • B-1
  • B-2
  • A-1

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

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

15: The Board of Boilers adopts by reference

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

16: What would be the classification of a prison?

  • Industrial
  • Institutional
  • Large mercantile
  • Place of assembly

17: Trichlorofluoromethane is the name of what refrigerant?

  • R-12
  • R-502
  • R-113
  • R-11

18: Machinery rooms must be vented to ______?

  • outdoors
  • unoccupied spaces
  • basement
  • neutralizing tank

19: Group A3 refrigerants have a ______ flammability rating than Group B1 refrigerants

  • the same
  • there is no Group B1 refrigerants
  • lower
  • higher

20: An example of direct system is

  • rooftop unit
  • chiller
  • absorber
  • none of the above

21: A “U” or “UM” marking a on a nameplate of a pressure vessels signifies compliance with Section VIII of

  • the ASME Boiler and Pressure Vessel Code
  • Section 11.3.1.5 ASHRAE 15 Standard
  • the ANSI Standard 10.7.2
  • both the ANSI Standard 10.7.2 and ASHRAE 15 Standard 11.3.1.5

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

  • 10
  • 15
  • III
  • 25

23: How many different groups of refrigerants are there?

  • 11
  • 3
  • 15
  • 7

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

  • Instituional
  • Place of assembly
  • Industrial
  • Large mercantile

25: Before you change the type of refrigerant in a refrigeration system, what three things must be done?

  • nothing must be done
  • place sign, check for leaks, insulate
  • make sure it's compatible, notify owner, notify A.H.J
  • you can't change refrigerants