Test your basic knowledge |

Basic Electricity Vocab

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. The liquid solution (sometime a paste) in which the electrodes are placed.






2. (Lode Stone) Certain type of mineral ore which has the natural Properties of a magnet.






3. In a battery - the electrode which takes up the electrons returning from the external circuit.






4. A short circuit between two energized conductors and/or an energized conductor and a grounded phase. Very high current flow.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


5. A measuring device.






6. A unit of power.






7. The area surrounding a magnet in which magnetic properties are exhibited






8. A circuit in which there is resistance (load) connected both in series and parallel.






9. The dissimilar metals which are placed in an electrolyte to form a cell.






10. Those electrons in orbits farthest out from the nucleus - loosely bound and migrate from one atom to another.






11. A machine which utilizes magnetism to produce an EMF and consequently - an electric circuit.






12. Meter used to measure resistance in an electrical circuit.






13. A circuit with two or more paths for the current to take.






14. Single NEGATIVE electrical charge. Orbits around the nucleus some in paths close to the nucleus - others in paths varying distance from the nucleus.






15. The magnetism which a material retains after the magnetic force which magnetized it has been removed.






16. A circuit carrying three alternating currents whose cycles begin one after another. 120 electrical degrees apart.






17. Coil connected to the source of power on a transformer.






18. The part of the magnet where the magnetic force is most concentrated. Commonly referred to as the North or South pole or the positive or negative poles)






19. A cell which is composed of certain materials which are used up during the process of delivering electric current.






20. A device which capacity is its chief electrical property; a device for storing or holding an electric charge; a capacitor.






21. The number of cycles per second. Example: 60 cycles per second alternating current.






22. A generator that produces alternating current.






23. A current limiting device designed to melt and break the circuit when a specified current is exceeded. (The weakest point in a circuit)






24. An instrument for measuring electromotive force in volts. It must be connected across the load that causes the votage drop.






25. A unit of POWER. 1 kilowatt = 1 -000 watts






26. A coil of wire designed to act as a magnet as a result of carrying an electrical current. It is usually wound on a soft iron core.






27. The center portion of an atom which has a positive electrical charge.






28. One- thousandth of volt.






29. Negative charge of electricity






30. Fundamental constituents of matter. The 'elements' (tiny particles) which come together in various combinations to form molecules of many substances.






31. A certain force exhibited by some materials which give them the ability to attract other materials. Principally iron or its alloys.






32. Any device which may be placed in the circuit and which offers opposition to the flow of electrons around the circuit.






33. Total and complete opposition to the flow of electrons






34. Term applied to the loss of voltage in forcing current through any portion of a circuit. Different factors will cause a drop; material - size - (cross - sectional area) length - temperature.






35. An instrument for measuring electric current






36. Smallest part a substance can physically divided into composed of 2 or more atoms.






37. Positive charge of electricity. Located in the nucleus of the atom.






38. A complete path provided for the flow of electrons. Consists of a source - with a closed conducting path leading from the source and back to the source






39. A transformer designed to raise the voltage of an alternating current. Most common use; In a generating plant to raise the voltage.






40. A circuit with only one path for current to flow. There are no branches.






41. (EMF) The force created by an electric generator (or by other means) which causes current to flow. (Same as Voltage - Volts - Electric Potential - Pressure).






42. A transformer designed to lower voltage of an alternating current. Most common type of transformer used on a power system.






43. Single POSITIVE electrical charge - located in the middle of an atom.






44. Those electrons in orbit nearest the nucleus - not easily dislodged from their normal orbits.






45. One- thousandth of a ampere






46. Electric charges at rest. Caused by friction of materials - where a surplus of electrons exists and may be discharged.






47. The unit of Electro- Motive Force






48. Invisible lines along which magnetic energy travels from one pole of a magnet to the other.






49. A unit of power; equal to 550 foot- pounds per second of approximately 746 watts.






50. One millionth of an ohm.