ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: What would be the classification of a prison?

  • Large mercantile
  • Institutional
  • Industrial
  • Place of assembly

2: What pipe can not be used for refrigeration?

  • L
  • M
  • K
  • N

3: The color code of a tank of ammonia is

  • silver
  • light green
  • lavender
  • white

4: Pressure vessels shall be provided with ___________in accordance with Section VIII of the ASME Boiler & Pressure Vessel Code

  • Pressure vessels need no type of protection as long as it is hydrostatically tested every three months
  • over pressure protection as well as a temperature protection device
  • over pressure protection
  • over pressure protection and a rupture disc

5: 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”
  • “UV”
  • “U” or “UM”
  • “UM” and “UV”

6: What refrigerant doesn't have to be classifted?

  • R-711
  • R-134a
  • R-717
  • R-718

7: When testing systems using non-positive displacement compressors, the entire system shall be considered for test purposes as the low side.

  • True
  • False

8: A declaration test is needed when the system contains more than

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

9: A room having machinery but no flame producing apparatus permanently installed and operated is considered a

  • Class B machinery room
  • Class M machinery room
  • Class A machinery room
  • Class T machinery room

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.

  • 350
  • 50
  • 100
  • 550

11: There can be no airflow from an occupied space through a machine room unless what?

  • System is high velocity
  • System is ducted and sealed
  • Duct is not located in the ceiling
  • None of the above.

12: A High-Probability System

  • 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
  • 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

13: What must be done to refrigerant pipes before being buried ?(8.10.4)

  • Certified
  • Leak checked
  • Classifed
  • Insulated and installed in a pipe duct (Encased)

14: Large mercantile occupancy is

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

15: A positive displacement compressor is

  • a compressor in which the increase in pressure is attained by changing the internal volume of the compression chamber
  • a compressor in which the increase in pressure is attained by changing the internal pressure of the compression chamber
  • is a reciprocating type compressor with 2 or more pistons
  • where the compressor's suction pressure and the compressor;s discharge pressure is more than 50 PSI

16: What does safe access mean?

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

17: What is Trichlorotrifluoromethane?

  • R-11
  • R-13
  • R-113
  • R-12

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

  • Industrial
  • Place of assembly
  • Instituional
  • Large mercantile

19: A High-Probablity system

  • is such that a leak of refrigerant from failed connections will enter the unoccupied space
  • is a system highly likely to leak from 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 failed connections will enter the occupied space

20: Trichlorofluoromethane is the name of what refrigerant?

  • R-11
  • R-113
  • R-502
  • R-12

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

  • C3
  • A3
  • B2
  • A2

22: What type of copper is not permitted on refrigeration systems?

  • Type N
  • Type M
  • Type K
  • Type L

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

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

24: What refrigerant were phased out in 2004?

  • R-12
  • R-11
  • R-22
  • R-134a

25: R-410A is classified as a ____ refrigerant on the safety matrix.

  • B-1
  • A-1
  • B-2
  • A-2