Topics: ASHRAE/CMR
1: A movie theater would be considered a
- commercial occupancy
- mixed occupancy
- public assembly occupancy
- institutional occupancy
2: A Category D fluid
- is when the fluid handled is non flammable, nontoxic, and not damaging to human as defined in ANSI/ASME Process Piping.
- is when the design pressure does not exceed 150 psi
- a fluid for service piping in which the potential for personnel exposure is judged to cause harm and irreversible damage to those persons exposed to it
- Both a and b are correct
3: R-718 is rated unlimited for refrigeration quantity contained in a system. Why?
- Because it's water
- Because it's a non-flammable refrigerant
- R-718 is not rated unlimited because it's a dangerous refrigerant
- Because it's cheap
4: Industrial occupancy is
- a premise or that portion of a premise that is not open to the public, where access by authorized persons is controlled, and that is used to manufacture, process, or store goods, such as chemicals, food, ice, meat, or petroleum.
- is a premise or that portion of a premise where large number of people congregate and from which occupants cannot quickly vacate the space.
- a premise or that portion of a premise where people transact business, receive personal service, or purchase food and other goods.
- Both a and b are correct
5: Ashrae states that the equipment on a building needs to conform to adjacent buildings classifications when within ____ feet from opening and intakes.
- 50
- 20
- 75
- 15
6: Pressure vessels with an internal volume of 3 cubic feet or more
- shall use pressure relief devices
- shall use pressure relief devices or fusible plugs
- do not need pressure relief protection
- shall use fusible plugs
7: Can you use Ammonia in industrial applications?
- Yes, always
- When mixed with R-718
- Yes, Under certain condidtions
- No, never
8: Which refrigerant class listed below is the most flammable?
- A-3
- C-3
- A-1
- B-2
9: How much clearance do you need around the perimeter of electrical panels?
- 36"
- 24"
- 18"
- 12"
10: What type refrigerant is NOT ozone depleting?
- CFC
- HFC
- HCFC
- Halon
11: A restaurant is classified as a
- commercial occupancy
- mixed occupancy
- public assembly occupancy
- large mercantile occupancy
12: What type of pressure relief device is used on a CO2 system?
- Glove valve
- Fusible plug
- Rupture disk
- Gate valve
13: Stop valves shall not be permitted between the system and the
- relief valve
- bleed valve
- service valve
- condenser
14: 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
15: Who authorizes changes to the safety codes?
- Contractor who last serviced the system.
- Person in charge of the facility
- Board of Boilers
- Person who pulled the permit
16: The 522 CMR 9.00 has adopted for reference ASHRAE ____
- 25
- 10
- 15
- III
17: The Department that certifies the transportation of refrigerant is the
- EPA
- EPO
- DOT
- RSES
18: When liquid receivers are used, the liquid refrigerant shall not exceed _______percent of the volume at 90F.
- 99%
- 90%
- 75%
- 80%
19: What would be the classification of a church?
- Industrial
- Large mercantile
- Place of assembly
- Institutional
20: When a refrigerating machinery room is used, the emergency procedures shall be posted
- on a conspicuous card located near the evaporator
- outside the room, immediately adjacent to each door
- on a conspicuous card located near the compressor
- inside the room, immediately adjacent to each door
21: What must be done to refrigerant pipes before being buried ?(8.10.4)
- Leak checked
- Certified
- Insulated and installed in a pipe duct (Encased)
- Classifed
22: Indirect systems using Group II refrigerants
- shall be used in refrigeration system in excess of 1,000 lbs
- shall be used for mechanical equipment only
- shall be used in refrigeration system less than 1,000 lbs
- shall have all refrigerant containing parts except piping, installed in a Class T machine room
23: A class B2 refrigerant is considered
- non-toxic and highly flammable
- toxic and somewhat flammable
- toxic and non-flammable
- non-toxic and non-flammable
24: Single compound Refrigerants are classified by what two criteria?
- Flammability and temperature range
- Temperature range and hazardousness
- Weight and color
- Flammability and toxicity
25: Setting a pressure relief device shall not exceed ___ of the design pressure
- 75%
- 80%
- 90%
- 100%