ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Name a CFC refrigerant(s):

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

2: 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.

  • 550
  • 50
  • 100
  • 350

3: There can be no airflow from an occupied space through a machine room unless what?

  • System is high velocity
  • System is ducted and sealed
  • Duct is not located in the ceiling
  • None of the above.

4: What must be done to refrigerant pipes before being buried ?(8.10.4)

  • Classifed
  • Leak checked
  • Certified
  • Insulated and installed in a pipe duct (Encased)

5: What section governs pressure vessels?

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

6: What refrigerant doesn't have to be classifted?

  • R-134a
  • R-718
  • R-717
  • R-711

7: 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.

  • 350
  • 100
  • 250
  • 400

8: 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

9: How much clearance do you need around the perimeter of electrical panels?

  • 24"
  • 36"
  • 12"
  • 18"

10: Ammonia belongs to Group

  • B-2
  • A-2
  • A-1
  • B-1

11: Pressure-limiting device isn't required on a factory-sealed system containing less than ____ lbs.

  • 22
  • 50
  • 18
  • 33

12: How much refrigerant can be stored in a mechanical room outside of the system?

  • 100
  • 330
  • 150
  • 200

13: All electrical work done on refrigeration systems must comply with

  • ASHREA-15 Section 9.2.1
  • NEC and Massachusetts Modifications
  • OSHA
  • Department of Energy

14: The certificate of inspection

  • 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
  • shall be posted on the compressor shell or electrical panel at the unit

15: Pressure vessels nameplate markings must be compliant with the

  • ASHRAE 34 Standards
  • CMR-588 & CMR-528
  • ASME Boiler and Pressure Vessel Code
  • All of the Above

16: 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

17: When must refrigeration system covered by the code be inspected?

  • Annually
  • Upon installation
  • Annually and when installed
  • Not required

18: When a refrigerating machinery room is used, the emergency procedures shall be posted

  • on a conspicuous card located near the evaporator
  • outside the room, immediately adjacent to each door
  • on a conspicuous card located near the compressor
  • inside the room, immediately adjacent to each door

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

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

20: Setting a pressure relief device shall not exceed ___ of the design pressure

  • 90%
  • 100%
  • 75%
  • 80%

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

  • A-2
  • A-1
  • B-2
  • B-1

22: 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

23: 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

24: What pipe can not be used for refrigeration?

  • L
  • M
  • K
  • N

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

  • 55 lbs
  • 330 lbs
  • 500 lbs
  • 660 lbs