ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: What is an example of institutional occupancy?

  • Shopping mall
  • Hospital
  • Football stadium
  • Dorms

2: What refrigerant were phased out in 2004?

  • R-11
  • R-22
  • R-134a
  • R-12

3: All welding done on any refrigeration system or piping covered by 522 CMR 9.00 shall be performed by a according to Section IX of the ASME code

  • licensed welder
  • competent welder
  • licensed technician
  • welder qualified

4: Pressure vessels with an internal volume of 3 cubic feet or more

  • shall use pressure relief devices or fusible plugs
  • shall use fusible plugs
  • shall use pressure relief devices
  • do not need pressure relief protection

5: Pressure vessels with an internal volume of 3 cubic feet or less

  • shall use fusible plugs
  • shall use pressure relief devices or fusible plugs
  • shall use pressure relief devices
  • do not need pressure relief protection

6: Pressure vessels with an internal volume of 10 cubic feet or more

  • shall use rupture discs or duel pressure relief valves
  • shall use pressure relief devices
  • shall use pressure relief devices or fusible plugs
  • shall use fusible plugs

7: 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

8: The main cause of enacting the "no vending rule" of July 1st 1992 was

  • global warming potential
  • ozone depletion
  • both a & b
  • None of the above

9: How many refrigerant classifications are there for toxicity?

  • 2
  • 5
  • 1
  • 3

10: How many refrigerant classifications are there for flammability?

  • 2
  • 3
  • 1
  • 7

11: When this is installed on the high side of a system, it must be capable of reading 1.2 times the design pressure (ASHRAE 15 9.11.3)

  • Pressure gauge
  • Temperature gauge
  • Sight glass gauge
  • All of the above

12: The pressure relief device of a positive displacement compressor shall discharge in the ______________or in accordance with 9.7.8

  • the vapor side of the system
  • the liquid side of the system
  • low side of the system
  • high side of the system

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

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

14: Ammonia can come in contact with _______ ?

  • Brass
  • Copper tubing
  • Aluminum
  • Copper

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

  • 75%
  • 80%
  • 100%
  • 90%

16: What section governs pressure vessels?

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

17: Liquid level gauge glasses shall have automatic closing shut off valves, except Bull's eye or reflex type.

  • True
  • False

18: What is R-22?

  • HFC
  • CCFCM
  • Chlorodifluoromethane
  • Chlorofluoromethane

19: What is the refrigerant chlorodifluoromethane?

  • R-12
  • R-22
  • R-134a
  • R-123

20: Field Inspections of refrigeration and A/C systems in Massachusetts shall be made by

  • District Engineering Inspectors
  • Commissioned Inspectors
  • Master licensed Technician
  • both a or b

21: How many different groups of refrigerants are there?

  • 7
  • 15
  • 3
  • 11

22: A hotel is considered a _______ occupancy.

  • institutional
  • commercial
  • mercantile
  • residential

23: Machinery rooms shall be vented to _____________ and utilizing mechanical ventilation.

  • the mechanical room housing the refrigeration system
  • the outdoors
  • Machinery rooms need not be vented
  • the return air ducted system

24: R-22 is considered a(n)

  • HCFC
  • CFC
  • HCFCH
  • HFC

25: Most CFC's are

  • toxic
  • flammable
  • inert but toxic
  • inert