Topics: ASHRAE/CMR
1: All machine rooms must be outfitted with a detector that _______?
- activates an audible alarm
- activates a visual alarm
- starts the ventilation system
- All of the above
2: 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
3: Pressure relief devices are marked with a ____________ signifying compliance with the ASME Boiler & Pressure Vessel Code.
- UL and UM
- UM or UL
- UL and UR
- UV or UR
4: A restaurant is classified as a
- commercial occupancy
- mixed occupancy
- large mercantile occupancy
- public assembly occupancy
5: What is the refrigerant dichlorodifluoromethane?
- R-22
- R-12
- R-134A
- R-123
6: When liquid receivers are used, the liquid refrigerant shall not exceed _______percent of the volume at 90F.
- 75%
- 99%
- 80%
- 90%
7: How many refrigerant classifications are there for flammability?
- 3
- 2
- 7
- 1
8: A class B1 refrigerant is considered
- non-toxic and non-flammable
- toxic and somewhat flammable
- toxic but non-flammable
- non-toxic but highly flammable
9: Pressure vessels with an internal volume of 3 cubic feet or less
- shall use fusible plugs
- shall use pressure relief devices or fusible plugs
- do not need pressure relief protection
- shall use pressure relief devices
10: How many flammability classifications are refrigerants in?
- 7
- 2
- 5
- 3
11: What would be the classification of a prison?
- Institutional
- Place of assembly
- Industrial
- Large mercantile
12: Group A3 refrigerants have a ______ flammability rating than Group B1 refrigerants
- higher
- the same
- there is no Group B1 refrigerants
- lower
13: 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
14: Pressure-limiting device isn't required on a factory-sealed system containing less than ____ lbs.
- 50
- 18
- 33
- 22
15: 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
16: The color code of a tank of ammonia is
- silver
- light green
- white
- lavender
17: All serviceable components of a refrigeration system shall be provided with
- name plates with markings referring to pressure and temperature in accordance with ASME Boiler and Pressure Vessel Code
- service manuals
- safe access
- manufactures instructions on start-up procedures
18: What type of refrigerants are NOT flammable?
- CHC
- HFC
- HCFC
- All of the above
19: When a refrigerating machinery room is used, the emergency procedures shall be posted
- outside the room, immediately adjacent to each door
- on a conspicuous card located near the compressor
- on a conspicuous card located near the evaporator
- inside the room, immediately adjacent to each door
20: Which refrigerant(s) is an HFC?
- R-22
- R-410A
- R-502
- All of the above
21: What type of material can't be used on the outlet of a relief valve?
- Stainless steel
- Magnesium alloy
- Copper
- PVC
22: Refrigeration piping before being buried shall be
- leak tested
- encased in pipe duct
- pressure tested
- All of the above
23: Relief valves are rated in
- pounds of air per hour
- pounds of air per minute
- gallons of water per hour
- gallons of water per minute
24: How much refrigerant can be stored in a mechanical room outside of the system?
- 100
- 150
- 330
- 200
25: A premise or that portion of a premise where people transact business, receive personal service, or purchase foods, other goods is considered a
- public assembly occupancy.
- business occupancy
- commercial occupancy
- mercantile occupancy