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






2. 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


3. A device used to change the voltage of an alternating current circuit.






4. 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.






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






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






7. A circuit with more than one path. Current branches to flow in every available path.






8. One- thousandth of volt.






9. The moving part of a dynamo or motor consisting of coils of wire around an iron core.






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






11. Occurs when a stream of electrons are caused to move through a conductor.






12. Lines representing the direction of the magnetic force in a magnetic field.






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






14. One millionth of a volt.






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






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






17. A material which CANNOT be magnetized. Example: Wood - Glass - Brass - Rubber...






18. Any of the spaces occupied by the orbits of a group of electrons of approximately equal energy surronding the nucleus of an atom.






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






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






21. Opposition to current flow






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






23. Rate of electrons flow (current flow). When one 'Coulomb' of electrons pass a given point in one second.






24. The rotating member of an electrical machine.






25. Negative charge of electricity






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






27. A connection of circuit of low resistance. Current through each of the end- to- end devices is exactly the same. Only one path for the current.






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






29. A generator that produces alternating current.






30. A material that has many free electrons thus allowing electric current to flow through it easily.






31. The difference between the electrical condition of one point in an electric circuit and that of another point which tends to cause current to flow between two points. Measured in volts.






32. A material which can be magnetized - principally iron.






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






34. The unit of resistance. It is the resistance through which a voltage of 1 volt will produce a current of 1 ampere.






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






36. The space around a magnet in which the magnetic force is felt.






37. 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






38. One millionth of an ohm.






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






40. A rod or strip composed of two metals having different rates or coefficients of expansion. Upon being heated - it bends in a direction which causes the material with the greater rate of expansion to be on the outside.






41. An instrument for measuring electric current






42. Transformer coil connected to the load. (Output side of a transformer regardless of voltage).






43. Total and complete opposition to the flow of electrons






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






45. 1.Material itself (Atomic Structure - Good conductor or Bad) 2.Length of the conductor 3.Cross - sectional area (Size) 4.Temperature






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






47. A measuring device.






48. A very low resistance path placed in a circuit in such a manner as to allow an excessive current flow.






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






50. The unit of Electro- Motive Force