Topics: ASHRAE/CMR
1: Machinery rooms shall be vented to _____________ and utilizing mechanical ventilation.
- the mechanical room housing the refrigeration system
- Machinery rooms need not be vented
- the outdoors
- the return air ducted system
2: Pressure relief valves shall be marked with the data from
- Section VIII Division of the ASME Boiler & Pressure Code
- Section I Division VIII of ASME Boiler & Pressure Code
- Section IV Division of the ASME Boiler & Pressure Code
- Section XIII Division of the ASME Boiler & Pressure Code
3: What is Trichlorotrifluoromethane?
- R-113
- R-11
- R-12
- R-13
4: Where are the three places that the discharge from an ammonia relief valve be piped?
- To chemical neutralizing tank only
- Underground, into drain, into mechanical room
- Atmosphere, Tank containing water, where the AHJ indicates.
- None of the above.
5: When must refrigeration system covered by the code be inspected?
- Annually
- Not required
- Upon installation
- Annually and when installed
6: R-12. R-22, and R-40 are considered Group I refrigerants.
- True
- False
7: What is an example of institutional occupancy?
- Shopping mall
- Dorms
- Football stadium
- Hospital
8: Who authorizes changes to the safety codes?
- Person who pulled the permit
- Contractor who last serviced the system.
- Board of Boilers
- Person in charge of the facility
9: When is the space above a drop ceiling calculated as space for refrigerant limit quantities?
- When there are sprinklers above
- When there is a space 6' or more above it
- When it's used as part of a supply or return air system
- When its white
10: Evaporators within 18" of a heating coil must be equipped with a
- low limit control
- zone valve
- pressure relief device
- high limit control
11: R-11 belongs to Group
- A-2
- B-1
- A-1
- B-3
12: Which occupancy can ammonia be used in?
- industrial
- redifential
- depends on the quantity of freon
- commercial
13: What refrigerant were phased out in 2004?
- R-22
- R-11
- R-12
- R-134a
14: The pressure relief device of a positive displacement compressor shall discharge in the ______________or in accordance with 9.7.8
- high side of the system
- the liquid side of the system
- the vapor side of the system
- low side of the system
15: Pressure vessel having an inside diameter exceeding 6” with an internal pressure greater than 15psig shall be marked directly on or on the nameplate the letters _______________ signifying compliance with the ASME Boiler & Pressure Vessel Code.
- “UV”
- “UL”
- “UM” and “UV”
- “U” or “UM”
16: Direct systems using Group II refrigerants
- shall be installed in Class T machinery rooms
- shall be installed per instruction of the AHJ
- shall be allowed to be used for human comfort.
- shall not be used for air condition for human comfort
17: Pressure vessels nameplate markings must be compliant with the
- ASHRAE 34 Standards
- CMR-588 & CMR-528
- ASME Boiler and Pressure Vessel Code
- All of the Above
18: _____ alloys shall not be used in contact with an halogenated refrigerants.
- Copper
- Nickel
- Zinc
- Magnesium
19: How far from the ground does a relief valve need to be?
- At least 15' above grade
- Not more than 3' above grade
- At least 25' above grade
- At least 20' above grade
20: copper and its alloys shall not be used in contact with _____ except as a component of bronze alloys for bearing or other non-refrigerant containing uses.
- CFC-11
- ammonia
- HCFC-123
- Lithium bromide
21: According to the 522 CMR Board of Boilers, refrigerant detectors, alarms, and the refrigeration mechanical room ventilating systems shall be tested
- annually
- bi-annually
- quarterly
- regularly
22: The 522 CMR 9.00 has adopted for reference ASHRAE ____
- 15
- 25
- 10
- III
23: _____ and its alloys are suitable for use with ammonia systems.
- Aluminum
- Copper
- Magnesium
- Zinc
24: How many flammability classifications are refrigerants in?
- 2
- 7
- 3
- 5
25: 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)
- illegal occupancy
- public assembly occupancy
- institutional occupancy
- commercial occupancy