ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Halogen refrigerants are corrosive to which type of metal?

  • stainless steel
  • black iron
  • copper
  • magnesium

2: What is Trichlorotrifluoromethane?

  • R-113
  • R-13
  • R-12
  • R-11

3: The Board of Boilers adopts by reference

  • Montreal Protocol Safety Code
  • the MACS Pressure Vessel Code of Massachusetts
  • MSCA Code
  • the 1997 ANSI/ASHRAE Safety Code

4: Evaporators within 18" of a heating coil must be equipped with a

  • pressure relief device
  • zone valve
  • high limit control
  • low limit control

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

  • 100
  • 1
  • 10
  • 50

6: 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

7: How far from the window does a relief valve need to be according to ASHRAE-15?

  • At least 40'
  • At least 20'
  • There is no minimum for relief valve and windows.
  • At least 30'

8: A High-Probability System

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

9: 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

10: Pressure relief devices are marked with a ____________ signifying compliance with the ASME Boiler & Pressure Vessel Code.

  • UL and UM
  • UM or UL
  • UL and UR
  • UV or UR

11: Which refrigerant(s) is an HFC?

  • R-22
  • R-410A
  • R-502
  • All of the above

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

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

13: What is the minimum size of the discharge pipe?

  • Same size as the outlet of the relief valve
  • One pipe size larger that the inlet of the relief valve
  • Depends on size of manifold
  • All of the above

14: Which refrigerant was still able to be vented to the atmosphere after July 1, 1992?

  • R-11
  • R-22
  • R-12
  • R-113

15: What is an example of institutional occupancy?

  • Shopping mall
  • Dorms
  • Hospital
  • Football stadium

16: Doors communicating with outside from a mechanical room must be?

  • Self-closing, aligned, fire door
  • Self-closing, wooden, fire door
  • Steel, approved, weather-stripped
  • Self-closing, approved, fire door

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

  • Magnesium
  • Zinc
  • Copper
  • Nickel

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: Pipe identification labels are required when the system contains more than

  • 120 lbs
  • 55 lbs
  • 110 lbs
  • 65 lbs

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

  • business
  • public assembly
  • mercantile
  • commercial

21: Which refrigerant replaced R-12?

  • R-134A
  • R-22
  • R-407A
  • R-410A

22: A restaurant is classified as a

  • mixed occupancy
  • commercial occupancy
  • public assembly occupancy
  • large mercantile occupancy

23: Where a refrigeration or air conditioning system is installed,

  • A field inspection shall be made before it is put into service
  • The company who installed the system must notify the fire department in the jurisdiction where installed
  • it shall not be operated below prescribed pressuers
  • the form or certificate shall be authorized by the Department of Public Safety

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

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

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

  • 20
  • 15
  • 50
  • 75