Practice Quiz

Red Seal Construction Electrician - Question List

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61. Which of the following is true for Ohm’s law?
  1. Ohm’s law states that a steady increase in voltage should reduce the magnitude of current through the circuit that has constant resistance.
  2. Ohm’s law states that a steady decrease in voltage should increase the magnitude of current through the circuit that has constant resistance.
  3. Ohm’s law states that a steady decrease in voltage should increase the magnitude of current through the circuit and increase the resistance offered by the circuit.
  4. Ohm’s law states that a steady increase in voltage should produce a constant and linear increase in current through the circuit that has constant resistance.
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62.
To what degree can a solar collector face east or west of true south with minimal effect on its performance?
  1. 90 degrees
  2. 70 degrees
  3. 45 degrees
  4. 30 degrees
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63.
What is the optimum angle for orienting collectors when intending to collect solar energy year-round?
  1. Site latitude minus 12 degrees
  2. Site latitude plus 12 degrees
  3. Site latitude with no correction
  4. None of the above
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64. You are troubleshooting a dimmer control where the lamp remains ON even after disconnecting the neutral wire. Which of the following could be the likely cause of this issue?
  1. Improper AC connections
  2. The dimmer’s Thyristor is bad
  3. Dimmer control is faulty
  4. Improper Min or Max setting on dimmer
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