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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. CSA ~LINK~






2. OSHA;






3. Mm; One thousandth of a meter.






4. The form of radiation used to make non-contact temperature measurements. In the electromagnetic spectrum it is the area beyond red light from 760 nanometers to 1000 microns.






5. A material used to conduct electricity or heat.






6. Symbol for Mega - one million.






7. The measured amount of electrical energy that represents the electrostatic forces between atomic particles. The nucleus of an atom has a positive charge (+) and the electrons have a negative charge(-).






8. The unit by which electrical resistance is measured. One ohm is equal to the current of one ampere which will flow when a voltage of one volt is applied






9. The difference in potential measured between two points caused by resistance or impedance.






10. The range of voltage needed to maintain operation of a control or device.






11. One millionth of a volt.






12. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.






13. EPA; ~LINK~






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






15. One millionth of an amp.






16. In a three phase connection all three phases are connected in series thus forming a closed circuit.






17. Applying molecular physics to electronics.






18. The electrical demand of a process. Load can be expressed or calculated as amps (current) - ohms (resistance) or watts (power).






19. 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.






20. A coil of wire wound about a magnetic material - such as iron - that produces a magnetic field when current flows through the wire.






21. An interconnected arrangement of parts for carrying high-voltage electricity.






22. The behavior of charged particles and the steady motion of charge in magnetic and electric fields.






23. Very High Frequency.






24. LED; A solid state light source component that emits light or invisible infrared radiation.






25. Symbol used to denote transmitter.






26. The unit of power. One watt equals one joule per second - 1/746th horsepower.






27. A hypothetical nuclear of a quark plus an antiproton.






28. IEC;






29. IBEW;






30. The time it takes for a controller to complete one on/off cycle.






31. The resistance to electrical current. Resistance is measured in ohms.






32. The power of one watt operating for one hour - and equal to 3 -600 joules.






33. The delayed period of time when outputs are turned off when power is initially applied.






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






35. See; 'Proximity Sensor'.






36. A small current leaking from an output device in the off state caused by semiconductor characteristics.






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






38. A meter used to measure electrical resistance in units of ohms.






39. Chemical changes and energy produced by electric currents.






40. European environmental ratings. Similar to NEMA ratings in the USA. IP;*site has NEMA comparisons ~LINK~






41. See; 'Maximum Power Rating'.






42. Or Hertz; The measurement of the time period of one alternating electric current. In the United States this is commonly 60 cycles per second - or 60 Hertz.






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






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






45. ISO;






46. The average temperature of a process.






47. (DC); Electrical current that flows consistently in one direction only.






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






49. A sudden and unwanted increase or decrease of supply voltage or current.






50. The adjustment of a display that results are zero on the display corresponding to a non-zero signal.







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Can you answer 50 questions in 15 minutes?


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