Topics: ASHRAE/CMR
1: The Department that certifies the transportation of refrigerant is the
- DOT
- EPO
- EPA
- RSES
2: How many refrigerant classifications are there for toxicity?
- 2
- 3
- 1
- 5
3: How many CFMs are required per square foot of commercial office occupied space
- 15 CFM
- 20 CFM
- .5 CFM
- 5 CFM
4: Who approves containers for refrigerants?
- D.O.D
- E.P.A
- D.O.T
- D.O.E
5: Methyl Chloride is a halogenated refrigerant and should not come in contact with
- aluminum
- zinc
- magnesium
- all of the above
6: Liquid level gauge glasses shall have automatic closing shut off valves, except Bull's eye or reflex type.
- True
- False
7: How far from the ground does a relief valve need to be?
- At least 25' above grade
- At least 15' above grade
- At least 20' above grade
- Not more than 3' above grade
8: How much clearance do you need around the perimeter of electrical panels?
- 36"
- 12"
- 18"
- 24"
9: How far from the window does a relief valve need to be according to ASHRAE-15?
- At least 30'
- At least 40'
- There is no minimum for relief valve and windows.
- At least 20'
10: Single compound Refrigerants are classified by what two criteria?
- Temperature range and hazardousness
- Weight and color
- Flammability and temperature range
- Flammability and toxicity
11: 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
12: 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
- 250
- 350
- 400
13: How many flammability classifications are refrigerants in?
- 3
- 5
- 7
- 2
14: 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
15: B3 refrigerants are considered
- toxic and highly flammable
- non-toxic but flammable
- toxic but non-flammable
- non-toxic but non-flammable
16: R-12. R-22, and R-40 are considered Group I refrigerants.
- True
- False
17: Group A1 refrigerants over ____ pounds in a system must discharge to the atmosphere
- 1,000
- 330
- 6.6
- 110
18: Insurance companies shall forward each inspection report of all refrigeration or A/C systems to the Chief of Inspections within
- 30 days
- 14 days
- 1 week
- 2 months
19: Pressure vessels having an inside diameter of 6” or less shall be protected by
- a fusible plug
- a pressure relief device
- either a fusible plug or a pressure relief device
- Pressure vessels having an inside diameter of 6” or less need no such protection unless otherwise specified
20: A 3-cubic foot receiver must have what type of relief valve?
- fusible plug
- relief valve
- rupture device
- none of the above
21: What is not a requirement of a class T machine room?
- automatic ventilation
- tight fitting doors
- fire hose connection to the building fire protection system
- self-closing doors
22: How many different groups of refrigerants are there?
- 7
- 3
- 15
- 11
23: Pressure vessels having design pressures of 15 psig or less shall have the strength to withstand at least ______times the design pressure.
- 5.5
- 2.0
- 3.0
- 2.5
24: 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
25: All serviceable components of a refrigeration system shall be provided with
- manufactures instructions on start-up procedures
- name plates with markings referring to pressure and temperature in accordance with ASME Boiler and Pressure Vessel Code
- safe access
- service manuals