ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: R-22 is considered a(n)

  • HCFC
  • CFC
  • HCFCH
  • HFC

2: 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

3: What does safe access mean?

  • OSHA approved
  • Well-lit exit signs
  • Locked doors
  • A clear unobstructed path to the equipment and controls

4: Who authorizes changes to the safety codes?

  • Board of Boilers
  • Contractor who last serviced the system.
  • Person who pulled the permit
  • Person in charge of the facility

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

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

6: Ammonia is under what safety classification?

  • B3
  • B1
  • A3
  • B2

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

  • 330 lbs
  • 55 lbs
  • 660 lbs
  • 500 lbs

8: What happens after your initial inspection of a pressure vessel?

  • Notify the AHJ to let them know that the system been inspected
  • Inspector leaves a metal tag with a certification listed on it
  • There is a temporary shut-down until a final inspection can be performed.
  • Notify the Fire Marshal that the system has been inspected and approved

9: A “U” or “UM” marking a on a nameplate of a pressure vessels signifies compliance with Section VIII of

  • the ASME Boiler and Pressure Vessel Code
  • Section 11.3.1.5 ASHRAE 15 Standard
  • the ANSI Standard 10.7.2
  • both the ANSI Standard 10.7.2 and ASHRAE 15 Standard 11.3.1.5

10: When is the space above a drop ceiling calculated as space for refrigerant limit quantities?

  • When it's used as part of a supply or return air system
  • When its white
  • When there are sprinklers above
  • When there is a space 6' or more above it

11: When releasing a hydrogenated hydrocarbon refrigerant to the atmosphere, ample ventilation must be provided and

  • the owner shall be informed
  • explosion precautions must be taken
  • gas masks must be worn
  • no flames shall be permitted

12: R-22 falls under which safety classification?

  • A-1
  • B-1
  • B-2
  • A-2

13: What section governs pressure vessels?

  • Section ASHREA 34
  • Section 1 ASHREA 15 ASME fired
  • Section 8 ASHREA 15 ASME unfired
  • OSHA

14: What is the intention of the word “shall” as used in the code?

  • A mandatory requirement
  • A recommendation or advisory guideline
  • A technician’s choice of how it should be done
  • None of the above

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

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

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

  • PVC
  • Stainless Steel
  • Copper
  • Aluminum

17: A premise or that portion of a premise where people transact business, receive personal service, or purchase foods, other goods is considered a

  • public assembly occupancy.
  • mercantile occupancy
  • business occupancy
  • commercial occupancy

18: How much clearance do you need around the perimeter of electrical panels?

  • 12"
  • 18"
  • 36"
  • 24"

19: 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

20: What type of pressure relief device is used on a CO2 system?

  • Glove valve
  • Fusible plug
  • Gate valve
  • Rupture disk

21: Pressure vessel having an inside diameter exceeding 6” with an internal pressure greater than 15psig shall be marked directly on or on the nameplate the letters _______________ signifying compliance with the ASME Boiler & Pressure Vessel Code.

  • “UL”
  • “U” or “UM”
  • “UM” and “UV”
  • “UV”

22: When a pressure gauge is permanently installed on a system, it must be ___ times the design pressure of the system.

  • 1.2
  • 1.5
  • 1
  • 2.2

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

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

24: A High-Probability System

  • is a system highly likely to leak form a failed connection or component of such system
  • is such that a leak of refrigerant from a failed connection will enter the occupied space
  • is such that a leak of refrigerant from a failed connection will enter an unoccupied space
  • is such that any leak will cause injury or death to anyone within a 100 square foot area

25: When should a relief valve start to function?

  • Before the purge station discharges
  • 10 psi before it's set pressure
  • Two times it's working pressure
  • At it's set pressure