Topics: ASHRAE/CMR
1: 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
2: When a pressure gauge is permanently installed on a system, it must be ___ times the design pressure of the system.
- 2.2
- 1.2
- 1.5
- 1
3: 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
4: How many refrigerant classifications are there for toxicity?
- 1
- 5
- 2
- 3
5: Ashrae states that the equipment on a building needs to conform to adjacent buildings classifications when within ____ feet from opening and intakes.
- 20
- 50
- 15
- 75
6: A “U” or “UM” marking a on a nameplate of a pressure vessels signifies compliance with Section VIII of
- the ASME Boiler and Pressure Vessel Code
- Section 11.3.1.5 ASHRAE 15 Standard
- the ANSI Standard 10.7.2
- both the ANSI Standard 10.7.2 and ASHRAE 15 Standard 11.3.1.5
7: Fusible plugs shall not be used with pressure vessels of
- 3 cubic feet or more
- 15 cubic feet or more
- 15 square feet or less
- 3 cubic feet or less
8: 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
9: Most CFC's are
- inert but toxic
- flammable
- toxic
- inert
10: Pressure vessels shall be provided with ___________in accordance with Section VIII of the ASME Boiler & Pressure Vessel Code
- over pressure protection as well as a temperature protection device
- over pressure protection
- Pressure vessels need no type of protection as long as it is hydrostatically tested every three months
- over pressure protection and a rupture disc
11: The total amount of refrigerant stored in a machinery room in all containers not provided with relief valves shall not exceed
- 330 lbs.
- 660 lbs
- 55 lbs
- 550 lbs
12: A declaration test is needed when the system contains more than
- 65 lbs
- 55 lbs
- 110 lbs
- 120 lbs
13: Methyl Chloride is a halogenated refrigerant and should not come in contact with
- aluminum
- zinc
- magnesium
- all of the above
14: Walls and doors of a machinery room shall be at least _____ hour(s) fire rated.
- 3
- 1
- 5
- 2
15: The ____ design is the maximum pressure for which a specific part of a refrigeration system is designed.
- low pressure
- design pressure
- high pressure
- critical pressure
16: What type refrigerant is NOT ozone depleting?
- CFC
- Halon
- HCFC
- HFC
17: What section governs pressure vessels?
- Section 1 ASHREA 15 ASME fired
- Section 8 ASHREA 15 ASME unfired
- OSHA
- Section ASHREA 34
18: A Category D fluid
- is when the fluid handled is non flammable, nontoxic, and not damaging to human as defined in ANSI/ASME Process Piping.
- is when the design pressure does not exceed 150 psi
- a fluid for service piping in which the potential for personnel exposure is judged to cause harm and irreversible damage to those persons exposed to it
- Both a and b are correct
19: What do you need to do when you install a new system?
- Add refrigerant
- Insulate the suction line before you take a superheat reading
- Document the superheat and subcooling reading
- Have it inspected
20: What refrigerant doesn't have to be classified?
- R-718
- R-422A
- R-717
- R-134A
21: Where a refrigeration or air conditioning system is installed,
- A field inspection shall be made before it is put into service
- The company who installed the system must notify the fire department in the jurisdiction where installed
- the form or certificate shall be authorized by the Department of Public Safety
- it shall not be operated below prescribed pressuers
22: Which refrigerant was still able to be vented to the atmosphere after July 1, 1992?
- R-22
- R-12
- R-11
- R-113
23: Which of the following is an inorganic refrigerant?
- R-22
- Ammonia
- Chlorofluorocarbons
- All of the above
24: What would be the classification for Stop & Shop grocery store?
- Industrial
- Instituional
- Place of assembly
- Large mercantile
25: Halogenated refrigerants cannot be used with what material?
- Aluminum
- Copper
- Stainless steel
- Magnesium alloy