Test your basic knowledge |

Electrical Components

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 amount of time it takes for a device to react to an input signal.






2. Voltage; The unit of electromotive force (EMF) that causes current to flow. One volt causes a current of one amp through a resistance of one ohm.






3. Inspection - analysis and action required to ensure quality of output.






4. A device that transfers power or energy from one system to another - such as taking a physical quality and changing it to an electrical signal.






5. A negative (-) electrode. The point of entry of electrons into a device from an external circuit. The negative electrode of a semiconductor diode.






6. The magnitude and time phase of a quantity - represented by a plotted line.






7. NEMA;






8. The interaction of magnetism and electrical current.






9. An area in which combustible or flammable mixtures are or could be present.






10. A fundamental negatively (-) charged atomic particle that rotates around a positively (+) charged nucleus of the atom.






11. A switch with contacts that are made with actuating force and released when that force is removed.






12. Kwh; One thousand watt-hours.






13. A meter used to measure units of volts.






14. The unit for capacitance. A capacitor that stored one coulomb of charge with one volt across it will have a value of one farad.






15. The energy delivered by a circuit or device. The electrical signal produced by the input to the transducer.






16. A three mode control consisting of time Proportioning - Integral and Derivative rate action.






17. An electrical circuit that is not 'made'. Contacts - switches or similar devices are open and preventing the floe of current.






18. A hypothetical basic subatomic nuclear particle believed to be the basic component of protons - neutrons - etc.






19. That part of a circuit which is physically interconnected.






20. Mm; One thousandth of a meter.






21. The average temperature of a process.






22. The standard that is used to make comparison measurements or calibrations.






23. A silicone semiconductor that maintains a fixed voltage in a circuit.






24. SI; The standard metric system of units.






25. Output power divided by input power - (work performed in ratio to energy used to produce it).






26. A circuit element or components that allows signals of certain frequencies to pass and blocks signals of other frequencies.






27. The measure of the ability of a material or substance to carry electrical current.






28. Pounds per square inch differential. The difference in pressure between two points.






29. OSHA;






30. NEC: A set of regulations pertaining to electrical installation and design in the interest of the protection of life and property. The NEC is adopted by NFPA and approved by ANSI. It is the preferred standard of guidelines used by most electrical reg






31. Electric and magnetic force field that surrounds a moving electric charge.






32. The speed or time rate of change of displacement.






33. A form of control where the power supplied to a process is controlled by limiting the phase angle of the line voltage.






34. The maximum temperature at which a device can be safely operated.






35. A device that converts AC voltage to pulsating DC voltage.






36. A form of silicone dioxide. Commonly used in the making of radio transmitters and heat resistant products.






37. To close an electrical circuit. To establish an electrical circuit through the closing of a contact - switch or other related device.






38. UL; ~LINK~






39. One millionth of a volt.






40. A controller whose action is either fully on or off.






41. Two dissimilar metals connected at a point - that produce an electrical current whose magnitude is dependent upon the temperature at the junction point.






42. A full-wave rectifier where the diodes are connected in a bridge circuit. This allows the current to the load during both the positive and negative alternating of the supply voltage.






43. Kw; One thousand watts.






44. A highly accurate bridge configuration that is used to measure three-wire RTD thermometers.






45. An electrically conductive fused salt or a solution where the charge is carried by ionic movement.






46. Pounds per square inch absolute. Pressure commonly in reference to vacuum.






47. The rapid on/off cycling of a relay caused by improper signal or adjustment - faulty contacts - or other malfunction.






48. The time based relationship between a reference and a periodic function.






49. A circuit conductor that is grounded to become part of the electric circuit by design and intent.






50. A material used to conduct electricity or heat.