ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: R-123 belongs to Group

  • A-3
  • B-3
  • B-1
  • B-2

2: What must be done if refrigeration lines pass through a concrete floor?

  • installed through a pipe casing
  • moisture barrier
  • insulated
  • leak checked

3: High pressure controls should be set no higher than

  • 90% of set point
  • 80% of set point
  • 10% of set point
  • 25% of set point

4: Industrial occupancy is

  • a premise or that portion of a premise that is not open to the public, where access by authorized persons is controlled, and that is used to manufacture, process, or store goods, such as chemicals, food, ice, meat, or petroleum.
  • is a premise or that portion of a premise where large number of people congregate and from which occupants cannot quickly vacate the space.
  • a premise or that portion of a premise where people transact business, receive personal service, or purchase food and other goods.
  • Both a and b are correct

5: Class 3 refrigerants are

  • highly flammable
  • non-toxic
  • non-flammable
  • toxic

6: What would be the classification of a prison?

  • Institutional
  • Industrial
  • Large mercantile
  • Place of assembly

7: Can ammonia be used on domestic system?

  • yes
  • no
  • no, unless there is proper ventilation system installed
  • yes, for systems under 10 tons

8: How far from the ground does a relief valve need to be?

  • At least 25' above grade
  • Not more than 3' above grade
  • At least 20' above grade
  • At least 15' above grade

9: What refrigerant were phased out in 2004?

  • R-11
  • R-12
  • R-134a
  • R-22

10: Pipe identification labels are required when the system contains more than

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

11: A professional or office building would be considered what type of occupancy?

  • business
  • public assembly
  • mercantile
  • commercial

12: A pressure-limiting device isn't required on a factory-sealed system containing less than ____ lbs.

  • 50
  • 25
  • 22
  • 66

13: 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
  • institutional occupancy
  • illegal occupancy
  • public assembly occupancy

14: When air is ducted through a machine room that services occupied space, What must be done?

  • Flanged and gasketed
  • Welded and seamed.
  • Ducted and sealed
  • Insulated and cross broke

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

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

16: 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

17: 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

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

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

19: Who is permitted to access a refrigeration machine room?

  • Contractors only
  • Anyone, it's a completely safe area
  • Authorized persons only
  • Any employee

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

  • B2
  • A3
  • C3
  • A2

21: How many refrigerant classifications are there for toxicity?

  • 3
  • 1
  • 2
  • 5

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

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

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

  • R-113
  • R-11
  • R-12
  • R-22

24: Name a CFC refrigerant(s):

  • R-11
  • R-12
  • R-123
  • both a & b

25: 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
  • outside the machinery room
  • boiler