Topics: ASHRAE/CMR
1: How many different groups of refrigerants are there?
- 7
- 3
- 15
- 11
2: Ammonia (NH3) is a group III refrigerant
- True
- False
3: What section governs pressure vessels?
- Section 1 ASHREA 15 ASME fired
- Section ASHREA 34
- OSHA
- Section 8 ASHREA 15 ASME unfired
4: Large mercantile occupancy is
- a premise of that portion of a premise where more than 50 persons congregate on levels above of below street level to purchase personal merchandise.
- a premise of that portion of a premise where more than 100 persons congregate on levels above of below street level to purchase personal merchandise.
- a premise or that portion of a premise where more than 1500 persons congregate on levels above or below street level to purchase personal merchandise
- a premise or that portion of a premise where more than 200 persons congregate on levels above or below street level to purchase personal merchandise
5: 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
6: Where are the three places that the discharge from an ammonia relief valve be piped?
- atmosphere, tank containing water, where the A.H.J. indicates
- underground, into drain, into mechanical room
- to chemical neutralizing tank only
- none of the above
7: Each machinery room shall contain
- a refrigerant detector located in an area where the refrigerant from a leak will concentrate
- high and low pressure controls
- a toxicity detector where the presence of ammonia or lithium bromide from a leak will concentrate
- smoke and fire alarms as well as three means of egress and that egress must meet 528 CMR ventilation requirements
8: Can you use Ammonia in industrial applications?
- Yes, Under certain condidtions
- No, never
- When mixed with R-718
- Yes, always
9: What would be the classification of a prison?
- Large mercantile
- Industrial
- Institutional
- Place of assembly
10: Machinery rooms must be vented to ______?
- neutralizing tank
- unoccupied spaces
- basement
- outdoors
11: R-22 is considered a(n)
- HCFCH
- CFC
- HCFC
- HFC
12: The Department that certifies the transportation of refrigerant is the
- DOT
- RSES
- EPO
- EPA
13: When liquid receivers are used, the liquid refrigerant shall not exceed _______percent of the volume at 90F.
- 99%
- 80%
- 75%
- 90%
14: How many groups of refrigerants are there?
- 1
- 7
- 3
- 5
15: A movie theater would be considered a
- commercial occupancy
- public assembly occupancy
- mixed occupancy
- institutional occupancy
16: Pressure vessels having an inside diameter of 6” or less shall be protected by
- either a fusible plug or a pressure relief device
- a pressure relief device
- Pressure vessels having an inside diameter of 6” or less need no such protection unless otherwise specified
- a fusible plug
17: What must be done to refrigerant pipes before being buried?
- Coated
- Certified
- Encased
- Leaked checked
18: Relief valves are rated in
- gallons of water per minute
- pounds of air per hour
- gallons of water per hour
- pounds of air per minute
19: Ashrae states that the equipment on a building needs to conform to adjacent buildings classifications when within ____ feet from opening and intakes.
- 75
- 50
- 15
- 20
20: Field Inspections of refrigeration and A/C systems in Massachusetts shall be made by
- District Engineering Inspectors
- Commissioned Inspectors
- Master licensed Technician
- both a or b
21: 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
- 55 lbs
- 550 lbs
22: 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.
- 7.00'
- 7.25'
- 9.00'
- 8'4"
23: A premise or that portion of a premise where large numbers of people congregate and from which occupants cannot quickly vacate the space such as auditoriums, ballrooms, classrooms, passenger depots, restaurants, and theaters is considered a(n)
- public assembly occupancy
- illegal occupancy
- commercial occupancy
- institutional occupancy
24: Machinery rooms shall be vented to _____________ and utilizing mechanical ventilation.
- the outdoors
- the return air ducted system
- Machinery rooms need not be vented
- the mechanical room housing the refrigeration system
25: Joints in refrigeration piping must be _____ before being covered?
- Inspected
- Insulated
- Leak tested
- Pressurized