ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Who authorizes changes to the safety codes?

  • Contractor who last serviced the system.
  • Person in charge of the facility
  • Board of Boilers
  • Person who pulled the permit

2: When a pressure gauge is permanently installed on a system, it must be ___ times the design pressure of the system.

  • 2.2
  • 1.2
  • 1.5
  • 1

3: All machine rooms must be outfitted with a detector that _______?

  • activates an audible alarm
  • activates a visual alarm
  • starts the ventilation system
  • All of the above

4: How many refrigerant classifications are there for toxicity?

  • 1
  • 5
  • 2
  • 3

5: Ashrae states that the equipment on a building needs to conform to adjacent buildings classifications when within ____ feet from opening and intakes.

  • 20
  • 50
  • 15
  • 75

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: Fusible plugs shall not be used with pressure vessels of

  • 3 cubic feet or more
  • 15 cubic feet or more
  • 15 square feet or less
  • 3 cubic feet or less

8: All serviceable components of a refrigeration system shall be provided with

  • name plates with markings referring to pressure and temperature in accordance with ASME Boiler and Pressure Vessel Code
  • service manuals
  • safe access
  • manufactures instructions on start-up procedures

9: Most CFC's are

  • inert but toxic
  • flammable
  • toxic
  • inert

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

  • over pressure protection as well as a temperature protection device
  • 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

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

  • 330 lbs.
  • 660 lbs
  • 55 lbs
  • 550 lbs

12: A declaration test is needed when the system contains more than

  • 65 lbs
  • 55 lbs
  • 110 lbs
  • 120 lbs

13: Methyl Chloride is a halogenated refrigerant and should not come in contact with

  • aluminum
  • zinc
  • magnesium
  • all of the above

14: Walls and doors of a machinery room shall be at least _____ hour(s) fire rated.

  • 3
  • 1
  • 5
  • 2

15: The ____ design is the maximum pressure for which a specific part of a refrigeration system is designed.

  • low pressure
  • design pressure
  • high pressure
  • critical pressure

16: What type refrigerant is NOT ozone depleting?

  • CFC
  • Halon
  • HCFC
  • HFC

17: What section governs pressure vessels?

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

18: 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

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

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

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

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

21: Where a refrigeration or air conditioning system is installed,

  • A field inspection shall be made before it is put into service
  • The company who installed the system must notify the fire department in the jurisdiction where installed
  • the form or certificate shall be authorized by the Department of Public Safety
  • it shall not be operated below prescribed pressuers

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

  • R-22
  • R-12
  • R-11
  • R-113

23: Which of the following is an inorganic refrigerant?

  • R-22
  • Ammonia
  • Chlorofluorocarbons
  • All of the above

24: What would be the classification for Stop & Shop grocery store?

  • Industrial
  • Instituional
  • Place of assembly
  • Large mercantile

25: Halogenated refrigerants cannot be used with what material?

  • Aluminum
  • Copper
  • Stainless steel
  • Magnesium alloy