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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 type of circuit has one path of follow through a load?






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






3. What is the type of cable composed of many fine wires?






4. What are the two generic methods to eliminate static electricity from metal objects?






5. What is a conductor?






6. What determines whether a spark can be produced?






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






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






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






11. How many kinds of poles do magnets have?






12. What is the fundamental property of insulators?






13. What does a transformer transform?






14. What is the use of the electromagnet?






15. To what measurement do the conductor mills refer?






16. Given E=I X R and the following information - plug in the data and solve the problem for voltage. 0.015 ohms - 800 amps of current






17. What is a common form used in conductors?






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






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






20. What is another name for an inductor?






21. What does Ohm's Law represent?






22. What is a type of mechanical transducer?






23. What instrument measures voltage?






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






25. How are the capacitors connected when the combined capacitance equals less than the lowest- value capacitor?






26. What is a characteristic of insulators?






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






28. What is a switch that operates by electricity?






29. What is induction?






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






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






32. 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






33. What is a common measure of wire diameter?






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






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






36. What types of protective tapes are used?






37. What is the purpose of capacitors in electrical circuits?






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






39. What is a wire classification?






40. What is the term for doing work at the rate of joule per second?






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






42. Why is the transformer important to AC electricity?

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






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






45. Identify the blueprint symbol for capacitors.






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






47. What does a third band of brown mean?






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






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






50. What determines the resistance of a resistor?