ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: 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

2: What happens after your initial inspection of a pressure vessel?

  • There is a temporary shut-down until a final inspection can be performed.
  • Inspector leaves a metal tag with a certification listed on it
  • Notify the Fire Marshal that the system has been inspected and approved
  • Notify the AHJ to let them know that the system been inspected

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

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

4: 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

5: What should not (and can not) be located between a pressure imposing device and a pressure-limiting device?

  • Stop valve
  • Foot valve
  • Muffler
  • Moisture indicator

6: 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

7: A relief valve shall be located at least ___ above grade.

  • 10'
  • 36'
  • 15'
  • 25'

8: What refrigerant has zero ozone depletion

  • HFC
  • CFC
  • HCFC
  • None of the above

9: How many gallons of water do you need per pound of ammonia?

  • 50
  • 100
  • 10
  • 1

10: What refrigerant doesn't have to be classified?

  • R-422A
  • R-134A
  • R-717
  • R-718

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

  • 10
  • 25
  • III
  • 15

12: What refrigerant is an inorganic compound?

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

13: What type of copper is not permitted on refrigeration systems?

  • Type M
  • Type K
  • Type L
  • Type N

14: Pressure vessels shall be provided with ___________in accordance with Section VIII of the ASME Boiler & Pressure Vessel Code

  • over pressure protection
  • Pressure vessels need no type of protection as long as it is hydrostatically tested every three months
  • over pressure protection and a rupture disc
  • over pressure protection as well as a temperature protection device

15: Which of the following are considered inorganic refrigerants?

  • R-717 and R-718
  • 410A and R-407C
  • R-500 and R-502
  • None of the above

16: A class A3 refrigerant is considered

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

17: Which refrigerant(s) is an HFC?

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

18: What do you need to do when you install a new system?

  • Document the superheat and subcooling reading
  • Add refrigerant
  • Have it inspected
  • Insulate the suction line before you take a superheat reading

19: NH3 is

  • ammonia
  • lithium bromide
  • R-718
  • R-508A

20: R-22 is considered a(n)

  • HCFCH
  • CFC
  • HCFC
  • HFC

21: 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.

  • 15
  • 50
  • 55
  • 75

22: Which refrigerant was still able to be vented to the atmosphere after July 1, 1992?

  • R-11
  • R-113
  • R-22
  • R-12

23: Ammonia (NH3) is a group III refrigerant

  • True
  • False

24: 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 fusible plugs
  • shall use pressure relief devices or fusible plugs

25: 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