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. One million ohms.






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






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






4. 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)






5. An instrument for measuring electrical power. Most common use: The meter of your house to measure electrical consumption.






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






7. That property of a material which determines how readily it conducts magnetic lines of flux. Opposite magnetic quality or conductivity.






8. 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.






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






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






11. The path of an electric current. To permit a steady flow of current - the path must be complete. Commonly - a complete circuit includes a device for the production of an electromotive force - connecting wires - and a device supplied with electricity.






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






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






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






15. The rotating member of an electrical machine.






16. A resistor designed so that its resistance is readily adjusted.






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






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






19. 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.






20. Hardened steel which has been magnetized artificially and which retains its magnetic properties






21. Total and complete opposition to the flow of electrons






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






23. A material with few free electrons. A structure or material used to prevent the passage of current.






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






25. A single electron or one of two or more electrons in the outer shell of an atom that is responsible for the chemical properties of an atom.






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






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






28. 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.






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






30. The time rate at which work is done or energy is transferred. When a pressure of 1 volt sends a current of 1 ampere through a resistance of 1 ohm - the power in the circuit is said to be 1 watt.






31. The electrodes of a cell shaped as plates to expose a surface as possible to the electrolyte.






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






33. In an electrical circuit - or part of an electric circuit - the intensity of the current is equal to the electromotive force that drives it divided by the resistance of the circuit.

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


34. The opposite ends of a magnet where the magnetism is concentrated. Each magnet has two poles - designated as north and south.






35. An alternating current which current cycle begins later that its voltage cycle.






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






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






38. A unit of power.






39. The complete path through which the lines of force travel - leaving the north pole and re- entering the south pole.






40. 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.






41. A complete sequence of events - as an alternating- current cycle.






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






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






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






45. Shows relationship between Current - Voltage - Wattage and Resistance.

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


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






47. Several secondary cells connected together for either a greater voltage or current output.






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






49. 1.Speed of conductors cutting lines of force 2.Strength of the magnetic field 3.Length of conductors cutting through the field






50. A current which reverses in direction at regularly recurring intervals - the total flow in one direction being equal to that in the other direction.