ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: 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

2: How many refrigerant classifications are there for flammability?

  • 1
  • 7
  • 2
  • 3

3: What is the intention of the word “should” 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

4: What is the refrigerant dichlorodifluoromethane?

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

5: Halogenated refrigerants cannot be used with what material?

  • Magnesium alloy
  • Aluminum
  • Copper
  • Stainless steel

6: Joints in piping for refrigeration containing parts must withstand temperatures of ___?

  • 700F
  • 1000F
  • 600F
  • 800F

7: Class A refrigerants are considered

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

8: What is a Category "M" fluid?

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

9: Large mercantile occupancy is

  • a premise or that portion of a premise where more than 1500 persons congregate on levels above or below street level to purchase personal merchandise
  • a premise or that portion of a premise where more than 200 persons congregate on levels above or below street level to purchase personal merchandise
  • a premise of that portion of a premise where more than 100 persons congregate on levels above of below street level to purchase personal merchandise.
  • a premise of that portion of a premise where more than 50 persons congregate on levels above of below street level to purchase personal merchandise.

10: A total of all group A-2,B-2, A-3, and B-3 refrigerants shall not exceed ____ lb in the occupied areas and machinery rooms of institutional occupancies.

  • 50
  • 350
  • 550
  • 100

11: Pressure vessels with an internal volume of 3 cubic feet or less

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

12: A professional or office building would be considered what type of occupancy?

  • mercantile
  • business
  • public assembly
  • commercial

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

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

14: When must refrigeration system covered by the code be inspected?

  • Annually
  • Not required
  • Upon installation
  • Annually and when installed

15: Setting a pressure relief device shall not exceed ___ of the design pressure

  • 80%
  • 100%
  • 90%
  • 75%

16: 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

17: B3 refrigerants are considered

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

18: 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

19: Liquid level gauges must be provided with what?

  • Automatic shut-offs
  • A relief valve
  • A low level mark
  • A red line

20: Pressure limiting devices are not required for systems containing less then ________ refrigerants.

  • 22 lbs
  • 13.9 lbs
  • 44 lbs
  • 6.6 lbs

21: 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

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

  • B2
  • A2
  • A3
  • C3

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

  • 15
  • 20
  • 50
  • 75

24: R-22 is considered a(n)

  • HCFC
  • CFC
  • HCFCH
  • HFC

25: A movie theater would be considered a

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