Topics: ASHRAE/CMR
1: Group A1 refrigerants over ____ pounds in a system must discharge to the atmosphere
- 6.6
- 330
- 110
- 1,000
2: When a refrigerating machinery room is used, the emergency procedures shall be posted
- on a conspicuous card located near the evaporator
- inside the room, immediately adjacent to each door
- on a conspicuous card located near the compressor
- outside the room, immediately adjacent to each door
3: The color code of a tank of ammonia is
- silver
- white
- lavender
- light green
4: What section governs pressure vessels?
- Section 8 ASHREA 15 ASME unfired
- Section 1 ASHREA 15 ASME fired
- OSHA
- Section ASHREA 34
5: 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.
- “UL”
- “U” or “UM”
- “UV”
- “UM” and “UV”
6: 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
7: 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.
- ammonia
- HCFC-123
- CFC-11
- Lithium bromide
8: Large Mercantile occupancy is a premise or that portion of a premise where more than ____ persons congregate on levels above or below the street level to purchase personal merchandise.
- 100
- 400
- 350
- 250
9: Pipe identification labels are required when the system contains more than
- 110 lbs
- 120 lbs
- 55 lbs
- 65 lbs
10: All serviceable components of a refrigeration system shall be provided with
- service manuals
- name plates with markings referring to pressure and temperature in accordance with ASME Boiler and Pressure Vessel Code
- safe access
- manufactures instructions on start-up procedures
11: Liquid shall not occupy more than ____ of the volume when the temperature of the refrigerant is 90F.
- 75%
- 80%
- 90%
- 100%
12: A premise where large numbers of people congregate and from which occupants can not quickly vacate the space is considered
- commercial occupancy
- institutional occupancy
- mixed occupancy
- public assembly occupancy
13: Where a refrigeration or air conditioning system is installed,
- the form or certificate shall be authorized by the Department of Public Safety
- it shall not be operated below prescribed pressuers
- The company who installed the system must notify the fire department in the jurisdiction where installed
- A field inspection shall be made before it is put into service
14: Which of the following are considered inorganic refrigerants?
- R-717 and R-718
- 410A and R-407C
- R-500 and R-502
- None of the above
15: _____ alloys shall not be used in contact with an halogenated refrigerants.
- Copper
- Nickel
- Zinc
- Magnesium
16: What type refrigerant is NOT ozone depleting?
- HCFC
- Halon
- HFC
- CFC
17: What is an example of institutional occupancy?
- Shopping mall
- Dorms
- Football stadium
- Hospital
18: R-22 is considered a(n)
- HFC
- HCFCH
- CFC
- HCFC
19: A professional or office building would be considered what type of occupancy?
- business
- public assembly
- commercial
- mercantile
20: What type of relief valve is used on low pressure centrifugal compressor systems?
- Spring-loaded relief valve
- Rupture disc
- Purge relief
- None of the above
21: The 522 CMR 9.00 has adopted for reference ASHRAE ____
- 10
- 15
- 25
- III
22: What should not (and can not) be located between a pressure imposing device and a pressure-limiting device?
- Stop valve
- Moisture indicator
- Muffler
- Foot valve
23: An evaporator coil located near heating coil shall have a pressure-relief device installed within ______ inches of the evaporator.
- 48
- 36
- 24
- 18
24: All welding done on any refrigeration system or piping covered by 522 CMR 9.00 shall be performed by a according to Section IX of the ASME code
- welder qualified
- competent welder
- licensed welder
- licensed technician
25: Ashrae states that the equipment on a building needs to conform to adjacent buildings classifications when within ____ feet from opening and intakes.
- 50
- 75
- 20
- 15