Topics: ASHRAE/CMR
1: Where a refrigeration or air conditioning system is installed,
- the form or certificate shall be authorized by the Department of Public Safety
- The company who installed the system must notify the fire department in the jurisdiction where installed
- it shall not be operated below prescribed pressuers
- A field inspection shall be made before it is put into service
2: R-11 belongs to Group
- B-1
- B-3
- A-2
- A-1
3: 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
- high side of the system
- the liquid side of the system
- low side of the system
4: Defined process piping by code CMR (528)
- Any piping that conveys a solid, liquid or gas that is not part of the plumbing or fire protection system
- Any piping in an industrial space
- Any piping in an industrial or commercial space
- All of the above
5: Trichlorofluoromethane is the name of what refrigerant?
- R-12
- R-11
- R-502
- R-113
6: A premise where large numbers of people congregate and from which occupants can not quickly vacate the space is considered
- public assembly occupancy
- commercial occupancy
- mixed occupancy
- institutional occupancy
7: A premise or that portion of a premise where people transact business, receive personal service, or purchase foods, other goods is considered a
- mercantile occupancy
- public assembly occupancy.
- commercial occupancy
- business occupancy
8: Refrigeration devices shall be equipped with a ____ to protect against unexpected pressure due to a malfunction or fire?
- Relief valve
- T&P device
- Temperature limiter device
- Circuit Breaker
9: What is a Category "D" fluid?
- A typical refrigerant used on newer air conditioning and heat pump ssytems
- Any fluid that exceeds 150 psig and has design temperature of over 366F
- A toxic fluid, which can produce serious irreversible harm to persons on breathing or bodily contact
- A fluid which is nonflammable, nontoxic, not damaging to human tissues, does not exceed 150 psig, and design temperature is between -20F to 366F
10: How many different groups of refrigerants are there?
- 7
- 15
- 11
- 3
11: A professional or office building would be considered what type of occupancy?
- mercantile
- commercial
- public assembly
- business
12: A restaurant is classified as a
- public assembly occupancy
- commercial occupancy
- large mercantile occupancy
- mixed occupancy
13: How much clearance do you need around the perimeter of electrical panels?
- 36"
- 18"
- 12"
- 24"
14: What should not (and can not) be located between a pressure imposing device and a pressure-limiting device?
- Muffler
- Stop valve
- Foot valve
- Moisture indicator
15: A pressure relief should be located at least _______ from windows and doors.
- 25'
- 15'
- 30'
- 20'
16: Dual-pressure relief devices should be installed on
- vessels of 10 cubic feet or less
- vessels of 3 cubic feet or more
- vessels of 3 cubic feet or less
- vessels of 10 cubic feet or more
17: Name an HCFC refrigerant(s):
- R-22
- R-123
- R-11
- both a & b
18: Methyl Chloride is a halogenated refrigerant and should not come in contact with
- aluminum
- zinc
- magnesium
- all of the above
19: Class 3 refrigerants are
- non-toxic
- highly flammable
- non-flammable
- toxic
20: The Board of Boilers adopts by reference
- Montreal Protocol Safety Code
- the MACS Pressure Vessel Code of Massachusetts
- the 1997 ANSI/ASHRAE Safety Code
- MSCA Code
21: R-718 is rated unlimited for refrigeration quantity contained in a system. Why?
- Because it's water
- Because it's cheap
- R-718 is not rated unlimited because it's a dangerous refrigerant
- Because it's a non-flammable refrigerant
22: What kind of material can't be used on the outlet of a relief valve?
- Copper
- PVC
- Stainless Steel
- Aluminum
23: When should a relief valve start to function?
- At it's set pressure
- 10 psi before it's set pressure
- Before the purge station discharges
- Two times it's working pressure
24: Most CFC's are
- inert but toxic
- flammable
- toxic
- inert
25: Pressure vessels with an internal volume of 3 cubic feet or more
- shall use pressure relief devices
- shall use fusible plugs
- do not need pressure relief protection
- shall use pressure relief devices or fusible plugs