Topics: ASHRAE/CMR
1: Insurance companies shall forward each inspection report of all refrigeration or A/C systems to the Chief of Inspections within
- 1 week
- 14 days
- 2 months
- 30 days
2: What section of ASHRAE-15 governs pressure vessels?
- OSHA
- Section 9 ASHRAE-15 ASME VIII unfired
- Section 6 ASHRAE-34 ASME VIII unfired
- Section 7 ASHRAE-15 ASME VIII fired
3: A declaration test is needed when the system contains more than
- 55 lbs
- 110 lbs
- 120 lbs
- 65 lbs
4: Class A refrigerants are considered
- non-flammable
- flammable
- toxic
- non-toxic
5: The main cause of enacting the "no vending rule" of July 1st 1992 was
- global warming potential
- ozone depletion
- both a & b
- None of the above
6: The 522 CMR 9.00 has adopted for reference ASHRAE ____
- 25
- III
- 10
- 15
7: When liquid receivers are used, the liquid refrigerant shall not exceed _______percent of the volume at 90F.
- 90%
- 80%
- 75%
- 99%
8: How many refrigerant classifications are there for flammability?
- 2
- 3
- 1
- 7
9: B3 refrigerants are considered
- non-toxic but non-flammable
- non-toxic but flammable
- toxic but non-flammable
- toxic and highly flammable
10: A hotel is considered a _______ occupancy.
- institutional
- mercantile
- commercial
- residential
11: Direct systems using Group II refrigerants
- shall not be used for air condition for human comfort
- shall be allowed to be used for human comfort.
- shall be installed in Class T machinery rooms
- shall be installed per instruction of the AHJ
12: System design pressures must take into consideration, not only, pressures found during normal operation but also what?
- When it's cold out
- When there is a malfunction on the high side
- When its warm out
- All of the above
13: Before determining if a machinery room equipment is excluded from following Ashrae 15, you must determine how many pounds of refrigerant per _____ cubic feet?
- 100,000
- 1,000
- 100
- 10,000
14: R-12. R-22, and R-40 are considered Group I refrigerants.
- True
- False
15: What does safe access mean?
- Well-lit exit signs
- OSHA approved
- A clear unobstructed path to the equipment and controls
- Locked doors
16: Group A3 refrigerants have a ______ flammability rating than Group B1 refrigerants
- higher
- lower
- there is no Group B1 refrigerants
- the same
17: Whoever owns/uses a refrigeration or air conditioning system covered by this code
- must notify the Department of Public Safety prior to starting the system
- shall be licensed by the Commonwealth of Massachusetts according to CMR 522
- shall make application for inspections to the Chief of Inspectors
- None of the above
18: Fusible plugs must have what marked on them?
- Melting temperature in F
- Melting temperature in C
- Opening pressure
- All of the above
19: All welding done on any refrigeration system or piping covered by 522 CMR 9.00 shall be performed by a according to Section IX of the ASME code
- competent welder
- licensed technician
- welder qualified
- licensed welder
20: 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.
- 15
- 75
- 50
- 55
21: Setting a pressure relief device shall not exceed ___ of the design pressure
- 90%
- 75%
- 80%
- 100%
22: _____ alloys shall not be used in contact with an halogenated refrigerants.
- Nickel
- Copper
- Zinc
- Magnesium
23: A premise or that portion of a premise where people transact business, receive personal service, or purchase foods, other goods is considered a
- business occupancy
- public assembly occupancy.
- commercial occupancy
- mercantile occupancy
24: What is Trichlorotrifluoromethane?
- R-11
- R-13
- R-113
- R-12
25: Pressure vessels with an internal volume of 3 cubic feet or more
- do not need pressure relief protection
- shall use pressure relief devices or fusible plugs
- shall use pressure relief devices
- shall use fusible plugs