ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: What would be the classification of a prison?

  • Large mercantile
  • Institutional
  • Industrial
  • Place of assembly

2: What refrigerant has zero ozone depletion

  • HFC
  • CFC
  • HCFC
  • None of the above

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

  • RSES
  • EPO
  • DOT
  • EPA

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

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

5: 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

6: Class A refrigerants are considered

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

7: Stop valves shall not be permitted between the system and the

  • bleed valve
  • relief valve
  • service valve
  • condenser

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

  • 36'
  • 10'
  • 25'
  • 15'

9: Refrigerant systems containing Group I refrigerants can be installed in or on public stairways.

  • True
  • False

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

  • 500 lbs
  • 330 lbs
  • 660 lbs
  • 55 lbs

11: Pressure relief devices are marked with a ____________ signifying compliance with the ASME Boiler & Pressure Vessel Code.

  • UL and UM
  • UV or UR
  • UL and UR
  • UM or UL

12: When liquid receivers are used, the liquid refrigerant shall not exceed _______percent of the volume at 90F.

  • 99%
  • 80%
  • 75%
  • 90%

13: Pressure vessels of 10 cubic feet or more gross volume shall use

  • at least one rupture member
  • a dual pressure-relief valve if charging into the atmosphere
  • at least three means of discharge and/or rupture discs
  • both a and b are correct

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

  • 50
  • 10
  • 100
  • 1

15: A Low-Probability System

  • is a system highly likely to leak form a failed connection or component of such system
  • is such that a leak of refrigerant from a failed connection can not enter the occupied space
  • is such that any leak will cause injury or death to anyone within a 100 square foot area
  • is such that a leak of refrigerant from a failed connection will enter the occupied space

16: The test pressure applied to the high side of each factory-assembled refrigerating system shall be at least equal to the design pressure of

  • the high side
  • 2.5 times the design pressure
  • the low side
  • the aggregate of the high side and low side

17: How many refrigerant classifications are there for toxicity?

  • 2
  • 5
  • 1
  • 3

18: What pipe can not be used for refrigeration?

  • M
  • K
  • N
  • L

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

  • 15
  • 10
  • III
  • 25

20: Single compound Refrigerants are classified by what two criteria?

  • Temperature range and hazardousness
  • Flammability and temperature range
  • Flammability and toxicity
  • Weight and color

21: What is an example of institutional occupancy?

  • Shopping mall
  • Hospital
  • Football stadium
  • Dorms

22: What type of relief valve is used on low pressure centrifugal compressor systems?

  • Spring-loaded relief valve
  • Rupture disc
  • Purge relief
  • None of the above

23: Name a CFC refrigerant(s):

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

24: Ammonia shall be discharged into ____________ or a tank containing one gallon of water for every pound of ammonia.

  • the atmosphere
  • a de-pressurized recovery tank with a silver top and yellow bottom
  • a tank containing two pounds of a water/lithium bromide mix for every pound of ammonia
  • All of the above

25: Group A1 refrigerants over ____ pounds in a system must discharge to the atmosphere

  • 330
  • 1,000
  • 6.6
  • 110