ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: What is a Category "D" fluid?

  • Any fluid that exceeds 150 psig and has design temperature of over 366F
  • A typical refrigerant used on newer air conditioning and heat pump ssytems
  • A fluid which is nonflammable, nontoxic, not damaging to human tissues, does not exceed 150 psig, and design temperature is between -20F to 366F
  • A toxic fluid, which can produce serious irreversible harm to persons on breathing or bodily contact

2: The Department that certifies the transportation of refrigerant is the

  • RSES
  • DOT
  • EPO
  • EPA

3: Refrigerants shall be classified by

  • toxicity and flammability
  • maximum permissible quantities of each group
  • requirements for commercial, industrial, and residential occupancies
  • color codes

4: A movie theater would be considered a

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

5: What is an example of institutional occupancy?

  • Football stadium
  • Hospital
  • Shopping mall
  • Dorms

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

  • 3.0
  • 5.5
  • 2.0
  • 2.5

7: All electrical work done on refrigeration systems must comply with

  • Department of Energy
  • ASHREA-15 Section 9.2.1
  • OSHA
  • NEC and Massachusetts Modifications

8: Who authorizes changes to the safety codes?

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

9: R-22 falls under which safety classification?

  • A-2
  • B-1
  • A-1
  • B-2

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

  • R-717
  • R-711
  • R-134a
  • R-718

11: A room having machinery but no flame producing apparatus permanently installed and operated is considered a

  • Class A machinery room
  • Class T machinery room
  • Class M machinery room
  • Class B machinery room

12: Can you use Ammonia in industrial applications?

  • When mixed with R-718
  • No, never
  • Yes, always
  • Yes, Under certain condidtions

13: What was the main reason for enacting the no venting rule of July 1, 1992?

  • Ozone depletion
  • Green house effect
  • Global warming potential
  • All of the above

14: Which occupancy can ammonia be used in?

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

15: According to ASHRAE Standard-15 9.8 Positive Displacement Compressor Protection, the pressure-relief device discharge into

  • the low-pressure side of the system
  • the high side of the system
  • the liquid receiver
  • both a and c are correct

16: What is not a requirement of a Class T machine room?

  • Automatic ventilation
  • Tight fitting doors
  • Self-closing doors
  • Fire hose connected to the building fire protection system.

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

  • 24"
  • 12"
  • 18"
  • 36"

18: A class B1 refrigerant is considered

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

19: A premise or that portion of a premise where large numbers of people congregate and from which occupants cannot quickly vacate the space such as auditoriums, ballrooms, classrooms, passenger depots, restaurants, and theaters is considered a(n)

  • commercial occupancy
  • illegal occupancy
  • public assembly occupancy
  • institutional occupancy

20: A relief valve discharge capacity is rated in

  • PSIA
  • temperature minus pounds of air per second divided by release rate squared
  • Pounds of air per minute.
  • PSIG

21: What is a Category "M" fluid?

  • A toxic fluid, which can produce serious irreversible harm to persons on breathing or bodily content
  • A typical refrigerant used on newer air conditioning and heat pump systems
  • Any fluid that exceeds 150 psig and has design temperatures over 366F
  • A fluid which is nonflammable, nontoxic, not damaging to human tissues, does not exceed 150 psig, and the designed temperature is between -20F to 366F

22: A person holding a license as a refrigeration technician may connect or disconnect for the purpose of installation, repair, or replacement, any electrical device or control to be a part of a refrigeration or air conditioning system, from the

  • breaker panel in
  • 24 volt secondary side of the Class 2 transformer to the thermostat
  • first disconnect in
  • load-side of the contactor in

23: Liquid shall not occupy more than ____ of the volume when the temperature of the refrigerant is 90F.

  • 80%
  • 90%
  • 75%
  • 100%

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

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

25: Name three things that must be done when changing refrigeration lubricant?

  • Nothing must be done
  • You can't change lubricants.
  • Place sign, check for leaks, insulate
  • Make sure it's compatible, notify owner, notify AHJ