ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: NH3 is

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

2: 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

3: When an inspection is needed, how often must it be done?

  • every 24 months
  • every 36 months
  • every 18 months
  • annually

4: A machine room with a refrigerant system using ammonia shall

  • be provided with a continuously operated ventilation system
  • be considered a non-hazardous location in accordance with National Electrical code
  • have no flame producing apparatus permanently installed and operated
  • All of the above

5: 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

6: A premise where large numbers of people congregate and from which occupants can not quickly vacate the space is considered

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

7: 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

8: What refrigerant has zero ozone depletion

  • HFC
  • CFC
  • HCFC
  • None of the above

9: The certificate of inspection

  • shall be posted on the compressor shell or electrical panel at the unit
  • shall be authorized by a notarized insurance company
  • shall be $20 and an additional fee of $1 for each tone above 20 tons
  • shall be posted and protected from dirt, water, and other elements

10: Low temperature systems should have what?

  • High pour point
  • Low pour point
  • High viscosity
  • None of the above

11: The main cause of enacting the "no vending rule" of July 1st 1992 was

  • global warming potential
  • ozone depletion
  • both a & b
  • None of the above

12: A Category D fluid

  • is when the fluid handled is non flammable, nontoxic, and not damaging to human as defined in ANSI/ASME Process Piping.
  • is when the design pressure does not exceed 150 psi
  • a fluid for service piping in which the potential for personnel exposure is judged to cause harm and irreversible damage to those persons exposed to it
  • Both a and b are correct

13: 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

14: Ammonia belongs to Group

  • B-2
  • B-1
  • A-2
  • A-1

15: What refrigerant were phased out in 2004?

  • R-134a
  • R-11
  • R-12
  • R-22

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

  • 15
  • 5
  • 20
  • 1

17: The pressure relief device of a positive displacement compressor shall discharge in the ______________or in accordance with 9.7.8

  • low side of the system
  • high side of the system
  • the vapor side of the system
  • the liquid side of the system

18: What type refrigerant is NOT ozone depleting?

  • CFC
  • Halon
  • HFC
  • HCFC

19: B3 refrigerants are considered

  • toxic and highly flammable
  • non-toxic but flammable
  • non-toxic but non-flammable
  • toxic but non-flammable

20: How many refrigerant classifications are there for toxicity?

  • 2
  • 3
  • 5
  • 1

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

  • 75
  • 50
  • 20
  • 15

22: Insurance companies shall forward each inspection report of all refrigeration or A/C systems to the Chief of Inspections within

  • 2 months
  • 14 days
  • 1 week
  • 30 days

23: 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

24: What is the refrigerant dichlorodifluoromethane?

  • R-134A
  • R-12
  • R-123
  • R-22

25: What is a Category "D" fluid?

  • A fluid which is nonflammable, nontoxic, not damaging to human tissues, does not exceed 150 psig, and design temperature is between -20F to 366F
  • A typical refrigerant used on newer air conditioning and heat pump ssytems
  • A toxic fluid, which can produce serious irreversible harm to persons on breathing or bodily contact
  • Any fluid that exceeds 150 psig and has design temperature of over 366F