ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: 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 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

2: No open flames are allowed in the machinery room unless?

  • Approved by the authorized person
  • Only when combustion air is provided from outside of the machinery room
  • Never can be allowed
  • Approved by the installing contractor

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

  • Large mercantile
  • Industrial
  • Place of assembly
  • Instituional

4: Who authorizes changes to the safety codes?

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

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

  • business
  • public assembly
  • commercial
  • mercantile

6: A 3-cubic foot receiver must have what type of relief valve?

  • fusible plug
  • relief valve
  • rupture device
  • none of the above

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

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

8: All machine rooms must be outfitted with a detector that _______?

  • activates an audible alarm
  • activates a visual alarm
  • starts the ventilation system
  • All of the above

9: B3 refrigerants are considered

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

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

  • 12"
  • 36"
  • 18"
  • 24"

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

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

12: A restaurant is classified as a

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

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

  • 1000F
  • 700F
  • 800F
  • 600F

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

  • aluminum
  • zinc
  • magnesium
  • all of the above

15: Before you change the type of refrigerant in a refrigeration system, what three things must be done?

  • Nothing must be done
  • Make sure its compatible, notify owner, and notify AHJ.
  • you can never change refrigerants
  • Place sign, check for leaks, and insulate suction line

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

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

17: A Low-Probability System

  • is such that a leak of refrigerant from a failed connection can not enter the occupied space
  • is such that any leak will cause injury or death to anyone within a 100 square foot area
  • 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

18: What refrigerant is an inorganic compound?

  • R-22
  • Ammonia
  • R-132A
  • R-410A

19: Which refrigerant(s) is an HFC?

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

20: Ammonia belongs to Group

  • B-1
  • A-1
  • B-2
  • A-2

21: When can recovered refrigerants be reused?

  • They can't
  • Only when used in original owner's equipment
  • Only if used in 30 days of recovery
  • None of the above

22: A High-Probablity system

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

23: 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.
  • commercial occupancy
  • business occupancy
  • mercantile occupancy

24: What is Trichlorotrifluoromethane?

  • R-13
  • R-11
  • R-12
  • R-113

25: Refrigerants shall be classified by

  • maximum permissible quantities of each group
  • color codes
  • requirements for commercial, industrial, and residential occupancies
  • toxicity and flammability