ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Ammonia can come in contact with _______ ?

  • Aluminum
  • Copper
  • Brass
  • Copper tubing

2: 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

3: When air is ducted through a machine room that services occupied space, What must be done?

  • Insulated and cross broke
  • Flanged and gasketed
  • Welded and seamed.
  • Ducted and sealed

4: Methyl Chloride is a halogenated refrigerant and should not come in contact with

  • aluminum
  • zinc
  • magnesium
  • all of the above

5: Group A2 refrigerants have a ______ toxicity rating than Group B1 refrigerants.

  • higher
  • lower
  • there is no Group B1 refrigerants
  • the same

6: The color code of a tank of ammonia is

  • silver
  • lavender
  • white
  • light green

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

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

8: The dial of a pressure gauge, when installed on the high side of a system be graduated 1.2 times the designed pressure.

  • True
  • False

9: How much refrigerant can be stored in a mechanical room outside of the system?

  • 150
  • 200
  • 330
  • 100

10: A pressure relief should be located at least _______ from windows and doors.

  • 20'
  • 25'
  • 15'
  • 30'

11: What is not a requirement of a class T machine room?

  • tight fitting doors
  • self-closing doors
  • fire hose connection to the building fire protection system
  • automatic ventilation

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

  • Magnesium
  • Zinc
  • Copper
  • Nickel

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

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

15: What kind of material can't be used on the outlet of a relief valve?

  • Copper
  • Aluminum
  • PVC
  • Stainless Steel

16: Direct systems using Group II refrigerants

  • shall not be used for air condition for human comfort
  • shall be installed per instruction of the AHJ
  • shall be installed in Class T machinery rooms
  • shall be allowed to be used for human comfort.

17: How many refrigerant classifications are there for flammability?

  • 7
  • 3
  • 1
  • 2

18: A premise or that portion of a premise where large numbers of people congregate and from which occupants cannot quickly vacate the space such as auditoriums, ballrooms, classrooms, passenger depots, restaurants, and theaters is considered a(n)

  • public assembly occupancy
  • institutional occupancy
  • illegal occupancy
  • commercial occupancy

19: R-12. R-22, and R-40 are considered Group I refrigerants.

  • True
  • False

20: What section of ASHRAE-15 governs pressure vessels?

  • OSHA
  • Section 7 ASHRAE-15 ASME VIII fired
  • Section 9 ASHRAE-15 ASME VIII unfired
  • Section 6 ASHRAE-34 ASME VIII unfired

21: What pipe can not be used for refrigeration?

  • K
  • L
  • N
  • M

22: Machinery rooms shall be vented to _____________ and utilizing mechanical ventilation.

  • Machinery rooms need not be vented
  • the mechanical room housing the refrigeration system
  • the outdoors
  • the return air ducted system

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

  • True
  • False

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

  • Instituional
  • Large mercantile
  • Industrial
  • Place of assembly

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

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