Test your basic knowledge |

Basic Electricity

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What is the term used when a magnetic field produced by coil 1 created a current in coil 2?






2. What is the name for electrical resistance of insulation?






3. Which of the following materials is NOT a good conductor?






4. What are the names of two of the six primary methods of producing a voltage?






5. What is the basic law of magnetic force?






6. What results when current is run through a material with high resistance?






7. What are the common units of measurement for round and square conductor cross - sections?






8. What is a conductor?






9. What do we call the ability to do work?






10. What does a moving charge produce?






11. What do transducers do in electrical terms?






12. What is true about a dry cell?






13. What is a type of mechanical transducer?






14. What can permanently break down a capacitor?






15. What is the use of the electromagnet?






16. What does Ohm's Law represent?






17. What do electrical charges need to cause a fire or explosion?






18. Which way is the current going in the circuit shown?(electron flow)






19. What is capacitance in electrical terms?






20. What is the unit of measurement of electrical current?






21. What is needed for electric heating elements and the filaments of light bulbs?






22. If the fourth color band is silver - this means the measured value of the resistance is what percent of the marked value?






23. What information do the Left-Hand Rules provide?






24. A resistor is color coded brown - green - orange. What is its resistance?






25. What type of circuit has two or more paths for current to follow?






26. What is voltage?






27. How is capacitance determined?






28. The dry cell is what method for creating potential energy?






29. What is a characteristic of a fixed resistor?






30. What is 'difference in potential(potential difference) - per unit of charge - between two points'?






31. How many kinds of poles do magnets have?






32. What is a common measure of wire diameter?






33. What is the measure of potential difference?






34. How do static charges distribute themselves?






35. Why is the transformer important to AC electricity?

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36. What is a rigid metal conduit?






37. What is the fundamental property of insulators?






38. What makes electrons flow?






39. What wire measurement is commonly used in the U.S.?






40. Identify the blueprint symbol for resistors.






41. What cannot be transformed to higher or lower potential differences?






42. What is produced when an alternator rotates 360 electrical degrees through a magnetic field?






43. How is the heat production measured in a resistor?






44. What is the unit of measurement of potential difference?






45. What is the difference between AC and DC?






46. What is the relationship between cells and batteries?






47. What does a first band of white mean?






48. What types of protective tapes are used?






49. Where do the fingers point in both Left-Hand Rules?






50. What is a way to classify wires and cables?