ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

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

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

2: Emergency shutdown procedures, including precautions to be observed in case of a breakdown or leak over 55 lbs of refrigerant charge, shall be displayed on a conspicuous card located as near as possible to the

  • compressor
  • evaporator
  • boiler
  • outside the machinery room

3: Ammonia can come in contact with _______ ?

  • Copper tubing
  • Copper
  • Aluminum
  • Brass

4: Which occupancy can ammonia be used in?

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

5: Large vessels containing refrigerant ______________________ from using two or more pressure-relief devices in parallel to obtain the required capacity.

  • containing R-11, R-123 & R-717 exclusively shall not be prohibited
  • of Group B2 refrigerant shall be prohibited
  • shall be prohibited
  • shall not be prohibited

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

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

7: Name an HCFC refrigerant(s):

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

8: A premise where large numbers of people congregate and from which occupants can not quickly vacate the space is considered

  • commercial occupancy
  • institutional occupancy
  • public assembly occupancy
  • mixed occupancy

9: What refrigerant is an inorganic compound?

  • R-22
  • R-410A
  • Ammonia
  • R-132A

10: Ammonia (NH3) is a group III refrigerant

  • True
  • False

11: What does safe access mean?

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

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

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

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

14: Halo-carbon refrigerants cannot be used with what material?

  • Aluminum
  • Magnesium alloy
  • Copper
  • Stainless Steel

15: When is the space above a drop ceiling calculated as space for refrigerant limit quantities?

  • When there are sprinklers above
  • When it's used as part of a supply or return air system
  • When its white
  • When there is a space 6' or more above it

16: The Board of Boilers adopts by reference

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

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

  • A-3
  • C-3
  • A-1
  • B-2

18: Where are the three places that the discharge from an ammonia relief valve be piped?

  • To chemical neutralizing tank only
  • Underground, into drain, into mechanical room
  • Atmosphere, Tank containing water, where the AHJ indicates.
  • None of the above.

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

  • rupture disc
  • gate valve
  • glove disc
  • fusible plug

20: What section governs pressure vessels?

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

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

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

22: It shall be the duty of the person in charge of the premises on which a refrigeration system containing more than ___ lbs of refrigerant is installed to provide a schematic drawing or panel giving directions for the operation of the system.

  • 50
  • 15
  • 75
  • 55

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

  • True
  • False

24: A class B1 refrigerant is considered

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

25: Ammonia is under what safety classification?

  • B1
  • A3
  • B3
  • B2