Topics: ASHRAE/CMR
1: The Board of Boilers adopts by reference
- MSCA Code
- the 1997 ANSI/ASHRAE Safety Code
- the MACS Pressure Vessel Code of Massachusetts
- Montreal Protocol Safety Code
2: The total amount of refrigerant stored in a machinery room in all containers not provided with relief valves shall not exceed
- 330 lbs.
- 660 lbs
- 550 lbs
- 55 lbs
3: Can you use Ammonia in industrial applications?
- No, never
- When mixed with R-718
- Yes, Under certain condidtions
- Yes, always
4: How far from the window does a relief valve need to be according to ASHRAE-15?
- At least 40'
- There is no minimum for relief valve and windows.
- At least 30'
- At least 20'
5: The Department that certifies the transportation of refrigerant is the
- RSES
- DOT
- EPO
- EPA
6: Refrigeration devices shall be equipped with a ____ to protect against unexpected pressure due to a malfunction or fire?
- Temperature limiter device
- T&P device
- Relief valve
- Circuit Breaker
7: What would be the classification of a prison?
- Institutional
- Place of assembly
- Large mercantile
- Industrial
8: 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
9: Halogenated refrigerants cannot be used with what material?
- Stainless steel
- Aluminum
- Copper
- Magnesium alloy
10: Emergency shutdown procedures, including precautions to be observed in case of a breakdown or leak over 55 lbs of refrigerant charge, shall be displayed on a conspicuous card located as near as possible to the
- evaporator
- outside the machinery room
- compressor
- boiler
11: Refrigerant piping crossing an open space that affords passageway in any building shall not be less than _____ feet above the floor unless piping is located against the ceiling.
- 7.25'
- 7.00'
- 8'4"
- 9.00'
12: Which of the following is an inorganic refrigerant?
- R-22
- Ammonia
- Chlorofluorocarbons
- All of the above
13: Group A1 refrigerants over ____ pounds in a system must discharge to the atmosphere
- 330
- 1,000
- 6.6
- 110
14: _____ and its alloys are suitable for use with ammonia systems.
- Zinc
- Magnesium
- Aluminum
- Copper
15: Evaporators located ____inches of a heating coil shall be equipped whit a pressure relief device.
- 24
- 15
- 18
- 10
16: What would be the classification for Stop & Shop grocery store?
- Instituional
- Place of assembly
- Industrial
- Large mercantile
17: copper and its alloys shall not be used in contact with _____ except as a component of bronze alloys for bearing or other non-refrigerant containing uses.
- ammonia
- CFC-11
- Lithium bromide
- HCFC-123
18: What refrigerant were phased out in 2004?
- R-134a
- R-22
- R-12
- R-11
19: Can ammonia be used on domestic system?
- yes
- no, unless there is proper ventilation system installed
- yes, for systems under 10 tons
- no
20: Class 3 refrigerants are
- toxic
- non-toxic
- non-flammable
- highly flammable
21: Fusible plugs shall not be used with pressure vessels of
- 3 cubic feet or less
- 15 square feet or less
- 15 cubic feet or more
- 3 cubic feet or more
22: All electrical work done on refrigeration systems must comply with
- NEC and Massachusetts Modifications
- ASHREA-15 Section 9.2.1
- OSHA
- Department of Energy
23: NH3 is
- lithium bromide
- R-718
- ammonia
- R-508A
24: Liquid shall not occupy more than ____ of the volume when the temperature of the refrigerant is 90F.
- 75%
- 80%
- 90%
- 100%
25: Pipe identification labels are required when the system contains more than
- 120 lbs
- 110 lbs
- 55 lbs
- 65 lbs