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






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






3. What is dielectric strength?






4. What is a type of mechanical transducer?






5. What is a type of capacitor?






6. What is a conductor?






7. Which type of cell can be recharged?






8. When reading resistance color codes - what does the first band indicate?






9. What do junction boxes protect?






10. What is insulation resistance?






11. What is the relationship between cells and batteries?






12. What is the relationship between magnetism and electricity?






13. What is a switch that operates by electricity?






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






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






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






17. How many kinds of poles do magnets have?






18. 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






19. Solve the equation: 35 volts / 0.70 amperes= ? ohms - to find resistance.






20. What is a characteristic of insulators?






21. What is the measure of potential difference?






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






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






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






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






26. What does resistance produce?






27. What is the fundamental property of insulators?






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






29. What types of protective tapes are used?






30. What is induction?






31. What is a common measure of wire diameter?






32. What makes electrons flow?






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






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






35. What does a first band of white mean?






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






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






38. How do static charges distribute themselves?






39. What is a wire classification?






40. What determines the resistance of a resistor?






41. Which of the following is a type of resistor?






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






43. What is a DC circuit characteristic?






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






45. What is capacitance in electrical terms?






46. What is voltage?






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






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






49. Identify the blueprint symbol for resistors.






50. 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