Topics: ASHRAE/CMR
1: Refrigeration devices shall be equipped with a ____ to protect against unexpected pressure due to a malfunction or fire?
- Circuit Breaker
- T&P device
- Relief valve
- Temperature limiter device
2: A hotel is considered a _______ occupancy.
- mercantile
- commercial
- residential
- institutional
3: 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
- Lithium bromide
- CFC-11
- HCFC-123
4: 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
5: 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
6: Insurance companies shall forward each inspection report of all refrigeration or A/C systems to the Chief of Inspections within
- 1 week
- 14 days
- 2 months
- 30 days
7: 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.
- 350
- 100
- 250
- 400
8: The Department that certifies the transportation of refrigerant is the
- DOT
- EPA
- EPO
- RSES
9: The main purpose of a refrigerant detector in a machinery room is to
- inform there is a refrigerant leak int he system
- detect toxins in the air caused by a refrigerant leak
- to set off an alarm when there is refrigerant present inside the room
- all of the above
10: Refrigeration piping before being buried shall be
- leak tested
- encased in pipe duct
- pressure tested
- All of the above
11: How much refrigerant can be stored in a mechanical room outside of the system?
- 100
- 330
- 150
- 200
12: It shall be the duty of the person in charge of the premises on which a refrigeration system containing more than ___ lbs of refrigerant is installed to provide a schematic drawing or panel giving directions for the operation of the system.
- 55
- 15
- 50
- 75
13: What would be the classification of a church?
- Industrial
- Large mercantile
- Institutional
- Place of assembly
14: Ammonia belongs to Group
- B-2
- A-2
- A-1
- B-1
15: Liquid level gauges shall have _____________ with one exception being that of the liquid level gauge bull’s eye type.
- color-coded glass to determine type of refrigerant
- moisture indicators
- automatic closing shut-off valves
- All of the above
16: Liquid level gauges must be provided with what?
- A relief valve
- A low level mark
- A red line
- Automatic shut-offs
17: _____ and its alloys are suitable for use with ammonia systems.
- Copper
- Aluminum
- Zinc
- Magnesium
18: Which of the following is an inorganic refrigerant?
- R-22
- Ammonia
- Chlorofluorocarbons
- All of the above
19: Doors communicating with outside from a mechanical room must be?
- Steel, approved, weather-stripped
- Self-closing, approved, fire door
- Self-closing, aligned, fire door
- Self-closing, wooden, fire door
20: What pipe can not be used for refrigeration?
- L
- M
- K
- N
21: pressure relief valves must discharge to the atmosphere at a location not less than 15 feet from ground level and ____ feet from any window, ventilation opening, or exits of buildings.
- 10
- 20
- 15
- 25
22: The discharge relief valve is located (9.4.6)
- between the compressor and oil separator
- between the compressor and reciever
- on top of the condensor
- between the compressor and the stop valve
23: How much clearance do you need around the perimeter of electrical panels?
- 24"
- 36"
- 12"
- 18"
24: Methyl Chloride is a halogenated refrigerant and should not come in contact with
- aluminum
- zinc
- magnesium
- all of the above
25: Who approves containers for refrigerants?
- E.P.A
- D.O.T
- D.O.E
- D.O.D