ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

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

  • 36"
  • 18"
  • 24"
  • 12"

2: Dual-pressure relief devices should be installed on

  • vessels of 10 cubic feet or more
  • vessels of 10 cubic feet or less
  • vessels of 3 cubic feet or less
  • vessels of 3 cubic feet or more

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

  • 2.5
  • 5.5
  • 2.0
  • 3.0

4: 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
  • 90
  • 100
  • 80

5: Large mercantile occupancy is

  • a premise of that portion of a premise where more than 100 persons congregate on levels above of below street level to purchase personal merchandise.
  • a premise of that portion of a premise where more than 50 persons congregate on levels above of below street level to purchase personal merchandise.
  • a premise or that portion of a premise where more than 200 persons congregate on levels above or below street level to purchase personal merchandise
  • a premise or that portion of a premise where more than 1500 persons congregate on levels above or below street level to purchase personal merchandise

6: Ammonia belongs to Group

  • A-1
  • A-2
  • B-1
  • B-2

7: The Board of Boilers adopts by reference

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

8: The certificate of inspection

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

9: Joints in piping for refrigeration containing parts must withstand temperatures of ___?

  • 700F
  • 600F
  • 1000F
  • 800F

10: Pressure vessels of 10 cubic feet or more gross volume shall use

  • at least one rupture member
  • a dual pressure-relief valve if charging into the atmosphere
  • at least three means of discharge and/or rupture discs
  • both a and b are correct

11: Relief valves are rated in

  • gallons of water per hour
  • pounds of air per hour
  • gallons of water per minute
  • pounds of air per minute

12: Refrigerant restricted in 2004 but used for transition for decades:

  • R-134A
  • R-11
  • R-123
  • R-22

13: Machinery rooms must be vented to ______?

  • neutralizing tank
  • outdoors
  • unoccupied spaces
  • basement

14: 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
  • 100,000
  • 1,000
  • 10,000

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

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

16: Pressure relief valves shall be marked with the data from

  • Section XIII Division of the ASME Boiler & Pressure Code
  • Section IV Division of the ASME Boiler & Pressure Code
  • Section I Division VIII of ASME Boiler & Pressure Code
  • Section VIII Division of the ASME Boiler & Pressure Code

17: 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.
  • mercantile occupancy
  • commercial occupancy
  • business occupancy

18: Name a CFC refrigerant(s):

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

19: A pressure vessel having an inside diameter of 6” or less shall be sufficient to withstand ____times the pressure of the saturation temperature of the refrigerant or ____times the critical pressure of the refrigerant, whichever is less.

  • 6.6, 6.6
  • 2.5, 3.0
  • 3.0, 3.5
  • 2.5, 2.5

20: What does safe access mean?

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

21: Halogenated refrigerants cannot be used with what material?

  • Magnesium alloy
  • Aluminum
  • Stainless steel
  • Copper

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

  • Certified
  • Leaked checked
  • Encased
  • Coated

23: Direct systems using Group II refrigerants

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

24: How many different groups of refrigerants are there?

  • 7
  • 15
  • 3
  • 11

25: Refrigeration piping before being buried shall be

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