Test your basic knowledge |

Basic Electricity And Electronics

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. Used to test components






2. Measures amount of resistance in ohms in a cirucit or component






3. Measures amount of current in a circuit






4. Current entering in wrong direction & diode acts as inulator






5. Connect electrical components to chassis or ground of the car






6. Accidental low- resistance connection resulting in excessive current flow






7. Diagnostic tool used to find and diagnose vehicle problems






8. Mocroscopic diodes - transistors - resistors - & capacitors in waferlike chip






9. Has more than one electrical path






10. Accurate display of voltage variations shown on an oscilloscope






11. Outer band of an electron which holds a maximum of 8 electrons






12. Electical device that uses electricity






13. Electric current generated when a wire passes through a magnetic field






14. Circuit is complete and operational






15. Vehicle's frame/body serves as an electrical conductor






16. Large- gauge wire capable of carrying high currents from battery to starting motor






17. Force that causes electron flow






18. Shows how electrical components are connected by wires






19. States that current flows from positive to negative






20. Allows an electric circuit to be turned on or off






21. Used only in ignition system for spark plug or coil wires






22. Carry current between power source and load






23. Have atoms that allow the flow of electrons






24. Determined by diameter of wire's metal conductor






25. Slipped over outside of wire insulation - uses magnetic field around outside of wire






26. Special substance capable of acting as conductor and insulator






27. Has more than one load connected in a single electrical path






28. Increase






29. Movement of electrons from atom to atom






30. Acts as remote control switch or current amplifier






31. Extra electrons that are not locked to protons






32. Resist the flow of electricity






33. Group of wires enclosed in plastic or tape covering






34. Voltage readings displayed on an oscilloscope






35. (physics and chemistry) the smallest component of an element having the chemical properties of the element






36. Short to ground between battery and load can melt & burn wire insulation






37. Used to quickly repair automotive wiring






38. Used to absorb unwanted electrical pulses






39. Formula for calculating circuit voltage - current - or resistance

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40. Negatively charged particles






41. Contains fuses - circuit breakers - & flasher units for various circuits






42. Can cause corrosion of electrical components






43. Checks circuit for voltage






44. Electrically operated switch - allows small dash switch to control another circuit from a distant point






45. Small section of wire designed to burn in half when excess current is present in circuit






46. Supplies electricity for circuit






47. Small wire that carries battery or alternator voltage






48. Larger gauge=smaller diameter






49. Positively charged particles






50. Disconnects power source from circuit when current becomes too high