Answers and Explanations

  1. The student must show their face in the video for credit.
  2. The student must wear safety glasses covering their eyes to get credit.
  3. The student must submit a legible schematic. See the examples below for this lab schematic. Only one schematic is required for submission, but either or both are acceptable. The student can either show the industrial style or the electronic style, and they can show either with or without the latch.
    1. AMAR-1200-Lab 12-1 - AC Par 3-way switches with Light and receptacles.PNG  
  4. The student must have their name, date, and lab number on the schematic.
  5. The wire colors must be on the schematic.
  6. All components must be labeled. This includes circuit breakers, push buttons, switches, motors, fans, solenoids, resistors, etc.
  7. The circuit must be wired to their schematic.
  8. The circuit must work.
  9. The student must measure the voltage across the light bulb and the receptacles.
  10. The light bulbs is in parallel with the receptacles. They have the same power source from the transformer. The power branches at the circuit breakers. Any time that you have a different circuit breaker in a house, you are on a parallel circuit.
  11. The 3-ways work to turn the light on and off because power comes into the black screw, and then depending upon the state of the switch, it will go to one or the other of the brass screws. The brass screws of both switches are connected, so the power is always on one of the brass screws of each receptacle. This means that the light connected to the black screw will switch power based on either switch, since the switches switch which brass screw has the power.
  12. The student clearly shows lockout/tagout in their video.
  13. The student clearly shows that they have verified with a multimeter that the voltage is at or near 0V.

Creative Commons License

Unless specified otherwise, any and all work on this page is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.