ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: _____ and its alloys are suitable for use with ammonia systems.

  • Copper
  • Zinc
  • Aluminum
  • Magnesium

2: The pressure relief device of a positive displacement compressor shall discharge in the ______________or in accordance with 9.7.8

  • the vapor side of the system
  • the liquid side of the system
  • high side of the system
  • low side of the system

3: What is the refrigerant dichlorodifluoromethane?

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

4: 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

5: Which of the following is an inorganic refrigerant?

  • R-22
  • Ammonia
  • Chlorofluorocarbons
  • All of the above

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

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

7: When a refrigeration or air conditioning system is installed

  • it shall not be operated below prescribed pressures
  • a field inspection shall be made before it is put into service
  • the form of certificate shall be authorized by the Department of Pubic safety
  • it shall be approved by the owner for proper operation.

8: What is the minimum height refrigeration piping should be placed against walls?

  • 7.25'
  • 72"
  • 6'
  • Ceiling height

9: Refrigerant systems containing Group I refrigerants can be installed in or on public stairways.

  • True
  • False

10: High pressure controls should be set no higher than

  • 10% of set point
  • 90% of set point
  • 25% of set point
  • 80% of set point

11: Pressure vessels nameplate markings must be compliant with the

  • ASHRAE 34 Standards
  • CMR-588 & CMR-528
  • ASME Boiler and Pressure Vessel Code
  • All of the Above

12: A pressure-limiting device isn't required on a factory-sealed system containing less than ____ lbs.

  • 66
  • 22
  • 25
  • 50

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

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

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

  • 50
  • 15
  • 20
  • 75

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

  • commercial
  • public assembly
  • mercantile
  • business

16: An evaporator coil located near heating coil shall have a pressure-relief device installed within ______ inches of the evaporator.

  • 24
  • 18
  • 36
  • 48

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

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

18: What is R-22?

  • Chlorofluoromethane
  • HFC
  • Chlorodifluoromethane
  • CCFCM

19: The Department that certifies the transportation of refrigerant is the

  • DOT
  • EPA
  • EPO
  • RSES

20: A premise where large numbers of people congregate and from which occupants can not quickly vacate the space is considered

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

21: Pressure-limiting device isn't required on a factory-sealed system containing less than ____ lbs.

  • 18
  • 22
  • 50
  • 33

22: Where are the three places that the discharge from an ammonia relief valve be piped?

  • To chemical neutralizing tank only
  • Underground, into drain, into mechanical room
  • Atmosphere, Tank containing water, where the AHJ indicates.
  • None of the above.

23: Refrigerant restricted in 2004 but used for transition for decades:

  • R-22
  • R-123
  • R-11
  • R-134A

24: 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.
  • business occupancy
  • commercial occupancy
  • mercantile occupancy

25: What type of material can't be used on the outlet of a relief valve?

  • Stainless steel
  • Copper
  • PVC
  • Magnesium alloy