ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Defined process piping by code CMR (528)

  • Any piping that conveys a solid, liquid or gas that is not part of the plumbing or fire protection system
  • Any piping in an industrial space
  • Any piping in an industrial or commercial space
  • All of the above

2: Machinery rooms must be vented to ______?

  • basement
  • unoccupied spaces
  • neutralizing tank
  • outdoors

3: What type refrigerant is NOT ozone depleting?

  • HCFC
  • HFC
  • Halon
  • CFC

4: Name a CFC refrigerant(s):

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

5: Dual-pressure relief devices should be installed on

  • vessels of 3 cubic feet or less
  • vessels of 10 cubic feet or less
  • vessels of 10 cubic feet or more
  • vessels of 3 cubic feet or more

6: Evaporators within 18" of a heating coil must be equipped with a

  • high limit control
  • pressure relief device
  • zone valve
  • low limit control

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

  • True
  • False

8: According to the 522 CMR Board of Boilers, refrigerant detectors, alarms, and the refrigeration mechanical room ventilating systems shall be tested

  • regularly
  • quarterly
  • annually
  • bi-annually

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

  • A-3
  • B-2
  • C-3
  • A-1

10: A Low-Probability System

  • is such that a leak of refrigerant from a failed connection can not enter the occupied space
  • is a system highly likely to leak form a failed connection or component of such system
  • 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

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

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

12: R-22 is classified as a ____ refrigerant on the safety matrix.

  • B-1
  • A-2
  • A-1
  • B-2

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: _____ alloys shall not be used in contact with an halogenated refrigerants.

  • Nickel
  • Magnesium
  • Zinc
  • Copper

15: When is the only time you can leave a service container attached to a system?

  • Leaking system
  • Recovery
  • Charging
  • Both b and c

16: Ammonia can come in contact with _______ ?

  • Copper tubing
  • Copper
  • Aluminum
  • Brass

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

  • Pressure vessels need no type of protection as long as it is hydrostatically tested every three months
  • over pressure protection as well as a temperature protection device
  • over pressure protection
  • over pressure protection and a rupture disc

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

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

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

  • 1
  • 2
  • 5
  • 3

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

  • EPA
  • EPO
  • RSES
  • DOT

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

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

22: Class A refrigerants are considered

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

23: When systems are protected by a high pressure relief device, the compressor's pressure limiting device shall be set at or below ____ % of the operating pressure of the high side relief device.

  • 110
  • 100
  • 80
  • 90

24: When a refrigeration or air conditioning system is installed

  • the form of certificate shall be authorized by the Department of Pubic safety
  • it shall be approved by the owner for proper operation.
  • it shall not be operated below prescribed pressures
  • a field inspection shall be made before it is put into service

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

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