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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. 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(-).






2. A material used to conduct electricity or heat.






3. One millionth of a meter.






4. One thousandth of an inch.






5. MV; One thousandth of a volt. The difference in potential needed to cause a current of one milliampere flow through a resistance of one ohm.






6. A connected path to earth or to a conductive body that has a reference potential to earth.






7. 'American Wire Gauge' system used to determine wire size.






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






9. A rise and fall of voltage - current - or other faction that would be constant under normal conditions. A pulse that is intentionally induced will have a finite duration time.






10. A reference point at zero potential with respect to the earth. In an electronic circuit it is the common return path for electric current. A conducting connection between the earth and an electrical circuit or electrical equipment. Also - the negativ






11. CSA ~LINK~






12. Kw; One thousand watts.






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






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






15. -459.67






16. The time delay between the output signal and the response time of the receiver of the signal.






17. A Solid State relay is a switching device that completes or interrupts a circuit electrically and has no moving parts. A Mechanical relay is an electromechanical device that closes contacts to complete a circuit or opens contacts to interrupt a circu






18. Radio Frequency Interference.






19. Electrical energy produced by the action of heat.






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






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






22. Mm; One thousandth of a meter.






23. The part of a circuit that supplies power to the entire circuit or part of the circuit. Usually a separate unit that supplies power to a specific part of the circuit in a system.






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






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






26. OSHA;






27. NEMA;






28. Normally Open.






29. The voltage that is applied across a semiconductor junction to permit forward current through that junction and the device. Forward voltage is also known as 'bias.'






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






31. A variable resistor.






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






33. Normally Closed.






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






35. A device - instrument or component that will not produce any spark or thermal effects under any conditions that are normal or abnormal that will ignite a specified gas mixture. Electrical and thermal energy limits are at levels incapable of causing i






36. An anode (+) or cathode (-) conductor on a device through which an electric current passes.






37. The mechanism of a switch which operates the contacts.






38. The moving of electricity or heat through a conductor.






39. The quality of having the ability to emit light when struck by electrons or another form of radiation.






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






41. 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






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






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






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






45. The average temperature of a process.






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






47. The rate of transfer of energy.






48. Kwh; One thousand watt-hours.






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






50. IEC;







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