Topics: All categories in the pool
1: What would be the classification of a prison?
- Institutional
- Industrial
- Large mercantile
- Place of assembly
2: Clearance volume
- has no effect on compressor capacity
- varies depending on compressor speed
- is the same on all compressors
- affects compressor capacity
3: Insurance companies shall forward each inspection report of all refrigeration or A/C systems to the Chief of Inspections within
- 2 months
- 30 days
- 1 week
- 14 days
4: What is a Category "M" fluid?
- A toxic fluid, which can produce serious irreversible harm to persons on breathing or bodily content
- Any fluid that exceeds 150 psig and has design temperatures over 366F
- A fluid which is nonflammable, nontoxic, not damaging to human tissues, does not exceed 150 psig, and the designed temperature is between -20F to 366F
- A typical refrigerant used on newer air conditioning and heat pump systems
5: What is the minimum size wire you can use on a 30 amp circuit?
- 10 AWG
- 16 AWG
- 14 AWG
- 12 AWG
6: How many CFMs are required per square foot of commercial office occupied space
- 15 CFM
- .5 CFM
- 20 CFM
- 5 CFM
7: Refrigeration piping before being buried shall be
- leak tested
- encased in pipe duct
- pressure tested
- All of the above
8: The instrument used to measure the specific gravity of absorption chiller solutions is the
- refractometer
- hydrometer
- Psychrometer
- anemometer
9: A movie theater would be considered a
- commercial occupancy
- mixed occupancy
- public assembly occupancy
- institutional occupancy
10: Refrigeration devices shall be equipped with a ____ to protect against unexpected pressure due to a malfunction or fire?
- Temperature limiter device
- Circuit Breaker
- T&P device
- Relief valve
11: A moisture indicator must
- change color when exposed to moisture
- be filled with liquid
- be sight side up
- be yellow
12: When must refrigeration system covered by the code be inspected?
- Annually and when installed
- Not required
- Annually
- Upon installation
13: How much clearance do you need around the perimeter of electrical panels?
- 36"
- 24"
- 18"
- 12"
14: What is the amp draw of a 40 VA transformer at 24 volts
- 1,000 amps
- 1K amps
- 1.6 amps
- 106 amps
15: A factory-sealed system containing less than 22lbs. of Group A1 refrigerant
- does not require a pressure-limiting device
- shall have a pressure limiting device installed on the high side of the system
- shall have a pressure limiting device and a pressure relief valve installed
- shall be inspected by the Boiler of Inspectors bi-annually
16: Gauge pressure is
- Barometric pressure
- Absolute pressrue
- Atmospheric pressure
- Force of pressure above that of atmosphere
17: Which has more turns in the windings: Start windings or Run windings?
- Start windings
- Run windings
- They both have the exact same turns
- Depends on the system and capacitor used
18: Which refrigerant replaced R-12?
- R-407A
- R-410A
- R-134A
- R-22
19: Before you change the type of refrigerant in a refrigeration system, what three things must be done?
- you can't change refrigerants
- place sign, check for leaks, insulate
- make sure it's compatible, notify owner, notify A.H.J
- nothing must be done
20: Copper and its alloys shall not be used with ammonia
- True
- False
21: Before determining if a machinery room equipment is excluded from following Ashrae 15, you must determine how many pounds of refrigerant per _____ cubic feet?
- 100,000
- 100
- 10,000
- 1,000
22: A premise or that portion of a premise where large numbers of people congregate and from which occupants cannot quickly vacate the space such as auditoriums, ballrooms, classrooms, passenger depots, restaurants, and theaters is considered a(n)
- commercial occupancy
- institutional occupancy
- illegal occupancy
- public assembly occupancy
23: The main cause of enacting the "no vending rule" of July 1st 1992 was
- global warming potential
- ozone depletion
- both a & b
- None of the above
24: A high side float is a
- float type valve that controls the amount of refrigerant stored in the receiver
- float type valve that controls the crankcase oil level
- metering device used on critically charged systems that controls the level of the liquid refrigerant in the high pressure side of the system.
- float type switch that stops the compressor when the pressure on the high side becomes too high
25: Who authorizes changes to the safety codes?
- Person in charge of the facility
- Person who pulled the permit
- Board of Boilers
- Contractor who last serviced the system.