ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Evaporators located ____inches of a heating coil shall be equipped whit a pressure relief device.

  • 10
  • 18
  • 15
  • 24

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

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

3: Name a CFC refrigerant(s):

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

4: All welding done on any refrigeration system or piping covered by 522 CMR 9.00 shall be performed by a according to Section IX of the ASME code

  • welder qualified
  • licensed technician
  • competent welder
  • licensed welder

5: NH3 is

  • lithium bromide
  • ammonia
  • R-718
  • R-508A

6: The ASHRAE Standard 34 requires what type of alarm for equipment rooms using HCFC-123?

  • phosgene gas sening
  • CO Sensing
  • refrigerant sensing
  • A group sensing

7: How many flammability classifications are refrigerants in?

  • 7
  • 2
  • 3
  • 5

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

  • 1
  • 5
  • 20
  • 15

9: What is R-22?

  • Chlorodifluoromethane
  • CCFCM
  • HFC
  • Chlorofluoromethane

10: Ashrae states that the equipment on a building needs to conform to adjacent buildings classifications when within ____ feet from opening and intakes.

  • 75
  • 20
  • 15
  • 50

11: System design pressures must take into consideration, not only, pressures found during normal operation but also what?

  • When it's cold out
  • When there is a malfunction on the high side
  • When its warm out
  • All of the above

12: Large Mercantile occupancy is a premise or that portion of a premise where more than ____ persons congregate on levels above or below the street level to purchase personal merchandise.

  • 350
  • 250
  • 400
  • 100

13: What type refrigerant is NOT ozone depleting?

  • HFC
  • CFC
  • Halon
  • HCFC

14: The color code of a tank of ammonia is

  • silver
  • lavender
  • white
  • light green

15: Pressure vessels with an internal volume of 3 cubic feet or more

  • shall use pressure relief devices
  • do not need pressure relief protection
  • shall use pressure relief devices or fusible plugs
  • shall use fusible plugs

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

  • RSES
  • EPA
  • EPO
  • DOT

17: What would be the classification of a prison?

  • Place of assembly
  • Industrial
  • Institutional
  • Large mercantile

18: R-22 falls under which safety classification?

  • A-1
  • A-2
  • B-1
  • B-2

19: Who approves containers for refrigerants?

  • D.O.D
  • D.O.T
  • E.P.A
  • D.O.E

20: Which of the following are considered inorganic refrigerants?

  • R-717 and R-718
  • 410A and R-407C
  • R-500 and R-502
  • None of the above

21: Class A refrigerants are considered

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

22: The main purpose of a refrigerant detector in a machinery room is to

  • inform there is a refrigerant leak int he system
  • detect toxins in the air caused by a refrigerant leak
  • to set off an alarm when there is refrigerant present inside the room
  • all of the above

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

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

24: _____ and its alloys are suitable for use with ammonia systems.

  • Magnesium
  • Copper
  • Aluminum
  • Zinc

25: Ammonia (NH3) is a group III refrigerant

  • True
  • False