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. How are the capacitors connected when the combined capacitance equals a sum of all the capacitors?






2. Identify the blueprint symbol for resistors.






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






4. What instrument measures voltage?






5. What does an object have if a magnetic field acts on it?






6. What does static electricity do?






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






8. What is voltage?






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






10. What type of circuit has one path of follow through a load?






11. Why is the transformer important to AC electricity?

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12. What can permanently break down a capacitor?






13. In most applications - what remains constant if the current remains constant and flows in one direction?






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






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






16. Given R=E / I and the following information - plug in the data and solve the problem for resistance. 1.5 volt walkman battery - 0.02 amps of current






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






18. What is the term used when a magnetic field produced by coil 1 created a current in coil 2?






19. What is the relationship between magnetism and electricity?






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






21. What is the term for two or more cells attached together?






22. What is a DC circuit characteristic?






23. The thermocouple uses which method for creating potential energy?






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






25. What does Ohm's Law represent?






26. What must be large enough to carry the largest current likely to occur?






27. What is another name for an inductor?






28. Which type of cell can be recharged?






29. What is a type of capacitor?






30. What is an electromagnet?






31. What is insulation resistance?






32. What does a moving charge produce?






33. Which material has the lowest resistance at ordinary temperatures?






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






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






36. When reading resistance color codes - what does the fourth band indicate?






37. What determines the resistance of a resistor?






38. What is the purpose of resistors in electrical circuits?






39. What is induction?






40. What is a characteristic of a fixed resistor?






41. What is the relationship between cells and batteries?






42. What determines whether a spark can be produced?






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






44. What is a characteristic of insulators?






45. The generator is what method of creating potential energy?






46. What does a first band of white mean?






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






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






49. What is a property of inductors in electrical circuits?






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