ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

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

  • 100
  • 150
  • 200
  • 330

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

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

3: A restaurant is classified as a

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

4: Ammonia belongs to Group

  • A-2
  • B-2
  • B-1
  • A-1

5: What type of relief valve is used on a CO2 system?

  • glove disc
  • fusible plug
  • gate valve
  • rupture disc

6: What is the definition of exit?

  • Anywhere where a stairwell leads to outdoors
  • The separated fire-resistant portion of a means of egress providing a protected travel path between the exit access and the exit discharge
  • Any doorway or pathway unobstructed for access to anywhere considered safe
  • Both a & b

7: Class A refrigerants are considered

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

8: Name a CFC refrigerant(s):

  • R-11
  • R-12
  • R-123
  • both a & b

9: Pressure relief valves shall be marked with the data from

  • Section I Division VIII of ASME Boiler & Pressure Code
  • Section IV Division of the ASME Boiler & Pressure Code
  • Section XIII Division of the ASME Boiler & Pressure Code
  • Section VIII Division of the ASME Boiler & Pressure Code

10: It shall be the duty of the person in charge of the premises on which a refrigeration system containing more than ___ lbs of refrigerant is installed to provide a schematic drawing or panel giving directions for the operation of the system.

  • 55
  • 75
  • 15
  • 50

11: What type refrigerant is NOT ozone depleting?

  • HCFC
  • CFC
  • Halon
  • HFC

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

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

13: A High-Probability System

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

14: Can you use Ammonia in industrial applications?

  • When mixed with R-718
  • Yes, always
  • No, never
  • Yes, Under certain condidtions

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

  • Zinc
  • Copper
  • Nickel
  • Magnesium

16: The certificate of inspection

  • shall be $20 and an additional fee of $1 for each tone above 20 tons
  • shall be posted and protected from dirt, water, and other elements
  • shall be posted on the compressor shell or electrical panel at the unit
  • shall be authorized by a notarized insurance company

17: What refrigerant doesn't have to be classified?

  • R-718
  • R-134A
  • R-717
  • R-422A

18: What is the refrigerant dichlorodifluoromethane?

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

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

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

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

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

21: Name an HCFC refrigerant(s):

  • R-22
  • R-123
  • R-11
  • both a & b

22: A person holding a license as a refrigeration technician may connect or disconnect for the purpose of installation, repair, or replacement, any electrical device or control to be a part of a refrigeration or air conditioning system, from the

  • 24 volt secondary side of the Class 2 transformer to the thermostat
  • load-side of the contactor in
  • breaker panel in
  • first disconnect in

23: What does “ultimate strength” mean?

  • Design strength of the vessel or piping in a refrigeration system
  • Stress at which rupture will occur
  • Highest or design pressure allowed inside a machinery room
  • None of the above

24: 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

25: Machinery rooms must be vented to ______?

  • unoccupied spaces
  • outdoors
  • basement
  • neutralizing tank