Topics: ASHRAE/CMR
1: How many flammability classifications are refrigerants in?
- 7
- 2
- 3
- 5
2: How many groups of refrigerants are there?
- 7
- 3
- 1
- 5
3: Which refrigerant class listed below is the most flammable?
- C-3
- B-2
- A-3
- A-1
4: Who authorizes changes to the safety codes?
- Person in charge of the facility
- Contractor who last serviced the system.
- Person who pulled the permit
- Board of Boilers
5: The gauge thickness required on a CO2 tank construction is
- 1/16"
- 5/16"
- 1/8"
- 3/32"
6: What was the main reason for enacting the no venting rule of July 1, 1992?
- Ozone depletion
- Green house effect
- Global warming potential
- All of the above
7: The discharge relief valve is located (9.4.6)
- between the compressor and the stop valve
- on top of the condensor
- between the compressor and oil separator
- between the compressor and reciever
8: What happens after your initial inspection of a pressure vessel?
- Inspector leaves a metal tag with a certification listed on it
- Notify the AHJ to let them know that the system been inspected
- There is a temporary shut-down until a final inspection can be performed.
- Notify the Fire Marshal that the system has been inspected and approved
9: Stop valves shall not be permitted between the system and the
- service valve
- relief valve
- condenser
- bleed valve
10: What would be the classification for Stop & Shop grocery store?
- Instituional
- Large mercantile
- Place of assembly
- Industrial
11: A total of all group A-2,B-2, A-3, and B-3 refrigerants shall not exceed ____ lb in the occupied areas and machinery rooms of institutional occupancies.
- 50
- 550
- 350
- 100
12: A class B1 refrigerant is considered
- toxic and somewhat flammable
- toxic but non-flammable
- non-toxic and non-flammable
- non-toxic but highly flammable
13: All electrical work done on refrigeration systems must comply with
- ASHREA-15 Section 9.2.1
- OSHA
- NEC and Massachusetts Modifications
- Department of Energy
14: A class B2 refrigerant is considered
- toxic and non-flammable
- toxic and somewhat flammable
- non-toxic and highly flammable
- non-toxic and non-flammable
15: When is the space above a drop ceiling calculated as space for refrigerant limit quantities?
- When there are sprinklers above
- When its white
- When there is a space 6' or more above it
- When it's used as part of a supply or return air system
16: What must be done to refrigerant pipes before being buried ?(8.10.4)
- Classifed
- Leak checked
- Insulated and installed in a pipe duct (Encased)
- Certified
17: The main purpose of a refrigerant detector in a machinery room is to
- inform there is a refrigerant leak int he system
- detect toxins in the air caused by a refrigerant leak
- to set off an alarm when there is refrigerant present inside the room
- all of the above
18: Institutional occupancy is
- a premise or that portion of a premise where large numbers of people congregate and from which occupants cannot quickly vacate the space.
- a premise or that portion of a premise from which, because they are disabled, debilitated, or confined, occupants cannot readily leave without the assistance of others.
- a premise or that portion of a premise where people transact business, receive personal service, or purchase food and other goods.
- None of the above
19: How many different groups of refrigerants are there?
- 3
- 11
- 15
- 7
20: Class 3 refrigerants are
- highly flammable
- non-flammable
- toxic
- non-toxic
21: What refrigerant is an inorganic compound?
- Ammonia
- R-132A
- R-410A
- R-22
22: A room having machinery but no flame producing apparatus permanently installed and operated is considered a
- Class A machinery room
- Class B machinery room
- Class M machinery room
- Class T machinery room
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: 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)
- institutional occupancy
- illegal occupancy
- commercial occupancy
- public assembly occupancy
25: Which refrigerant(s) is an HFC?
- R-22
- R-410A
- R-502
- All of the above