Topics: ASHRAE/CMR
1: 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
2: No open flames are allowed in the machinery room unless?
- Approved by the installing contractor
- Only when combustion air is provided from outside of the machinery room
- Approved by the authorized person
- Never can be allowed
3: Halo-carbon refrigerants cannot be used with what material?
- Copper
- Magnesium alloy
- Stainless Steel
- Aluminum
4: A premise where large numbers of people congregate and from which occupants can not quickly vacate the space is considered
- public assembly occupancy
- mixed occupancy
- commercial occupancy
- institutional occupancy
5: Emergency shutdown procedures, including precautions to be observed in case of a breakdown or leak over 55 lbs of refrigerant charge, shall be displayed on a conspicuous card located as near as possible to the
- boiler
- outside the machinery room
- evaporator
- compressor
6: A hotel is considered a _______ occupancy.
- commercial
- residential
- institutional
- mercantile
7: What would be the classification of a prison?
- Place of assembly
- Large mercantile
- Institutional
- Industrial
8: R-718 is rated unlimited for refrigeration quantity contained in a system. Why?
- Because it's a non-flammable refrigerant
- R-718 is not rated unlimited because it's a dangerous refrigerant
- Because it's cheap
- Because it's water
9: Before you change the type of refrigerant in a refrigeration system, what three things must be done?
- Make sure its compatible, notify owner, and notify AHJ.
- Place sign, check for leaks, and insulate suction line
- you can never change refrigerants
- Nothing must be done
10: How many different groups of refrigerants are there?
- 3
- 15
- 7
- 11
11: When testing systems using non-positive displacement compressors, the entire system shall be considered for test purposes as the low side.
- True
- False
12: What must be done to all doors and access points in duct work going through a mechanical room?
- Must be hindged
- Must be screwed shut
- Must be sealed and gasketed
- All of the above
13: Liquid level gauge glasses shall have automatic closing shut off valves, except Bull's eye or reflex type.
- True
- False
14: What should not (and can not) be located between a pressure imposing device and a pressure-limiting device?
- Muffler
- Moisture indicator
- Foot valve
- Stop valve
15: Name three things that must be done when changing refrigeration lubricant?
- Make sure it's compatible, notify owner, notify AHJ
- Nothing must be done
- You can't change lubricants.
- Place sign, check for leaks, insulate
16: Pressure vessels with an internal volume of 3 cubic feet or less
- do not need pressure relief protection
- shall use fusible plugs
- shall use pressure relief devices or fusible plugs
- shall use pressure relief devices
17: What must be done if refrigeration lines pass through a concrete floor?
- insulated
- leak checked
- moisture barrier
- installed through a pipe casing
18: Pipe identification labels are required when the system contains more than
- 110 lbs
- 55 lbs
- 120 lbs
- 65 lbs
19: Who is permitted to access a refrigeration machine room?
- Contractors only
- Anyone, it's a completely safe area
- Any employee
- Authorized persons only
20: A pressure relief should be located at least _______ from windows and doors.
- 15'
- 20'
- 30'
- 25'
21: What kind of material can't be used on the outlet of a relief valve?
- Stainless Steel
- PVC
- Aluminum
- Copper
22: The dial of a pressure gauge, when installed on the high side of a system be graduated 1.2 times the designed pressure.
- True
- False
23: The 522 CMR 9.00 has adopted for reference ASHRAE ____
- III
- 25
- 10
- 15
24: Evaporators within 18" of a heating coil must be equipped with a
- low limit control
- zone valve
- pressure relief device
- high limit control
25: A pressure-limiting device isn't required on a factory-sealed system containing less than ____ lbs.
- 66
- 22
- 25
- 50