ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Which refrigerant replaced R-12?

  • R-407A
  • R-410A
  • R-22
  • R-134A

2: Institutional occupancy is

  • a premise or that portion of a premise where large numbers of people congregate and from which occupants cannot quickly vacate the space.
  • a premise or that portion of a premise from which, because they are disabled, debilitated, or confined, occupants cannot readily leave without the assistance of others.
  • a premise or that portion of a premise where people transact business, receive personal service, or purchase food and other goods.
  • None of the above

3: A pressure vessel having an inside diameter of 6” or less shall be sufficient to withstand ____times the pressure of the saturation temperature of the refrigerant or ____times the critical pressure of the refrigerant, whichever is less.

  • 2.5, 3.0
  • 6.6, 6.6
  • 3.0, 3.5
  • 2.5, 2.5

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

  • Stop valve
  • Muffler
  • Moisture indicator
  • Foot valve

5: Fusible plugs must have what marked on them?

  • Melting temperature in F
  • Melting temperature in C
  • Opening pressure
  • All of the above

6: 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

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

  • III
  • 15
  • 25
  • 10

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

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

9: Pressure-limiting device isn't required on a factory-sealed system containing less than ____ lbs.

  • 18
  • 22
  • 33
  • 50

10: High pressure controls should be set no higher than

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

11: What must be done to refrigerant pipes before being buried?

  • Certified
  • Leaked checked
  • Encased
  • Coated

12: Fusible plugs shall not be used with pressure vessels of

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

13: Whoever owns/uses a refrigeration or air conditioning system covered by this code

  • must notify the Department of Public Safety prior to starting the system
  • shall be licensed by the Commonwealth of Massachusetts according to CMR 522
  • shall make application for inspections to the Chief of Inspectors
  • None of the above

14: Name an HCFC refrigerant(s):

  • R-22
  • R-123
  • R-11
  • both a & b

15: What would be the classification of a church?

  • Industrial
  • Large mercantile
  • Place of assembly
  • Institutional

16: Liquid level gauges shall have _____________ with one exception being that of the liquid level gauge bull’s eye type.

  • color-coded glass to determine type of refrigerant
  • moisture indicators
  • automatic closing shut-off valves
  • All of the above

17: R-22 is considered a(n)

  • HCFCH
  • HCFC
  • HFC
  • CFC

18: 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
  • load-side of the contactor in
  • first disconnect in

19: Refrigerant piping crossing an open space that affords passageway in any building shall not be less than _____ feet above the floor unless piping is located against the ceiling.

  • 7.25'
  • 8'4"
  • 9.00'
  • 7.00'

20: When must refrigeration system covered by the code be inspected?

  • Upon installation
  • Annually
  • Annually and when installed
  • Not required

21: Joints in piping for refrigeration containing parts must withstand temperatures of ___?

  • 800F
  • 600F
  • 1000F
  • 700F

22: R-22 falls under which safety classification?

  • B-1
  • B-2
  • A-2
  • A-1

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

  • Industrial
  • Instituional
  • Place of assembly
  • Large mercantile

24: How many refrigerant classifications are there for flammability?

  • 1
  • 2
  • 3
  • 7

25: A movie theater would be considered a

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