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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 basic of thermal energy. The work done by the force of one newton acting through a distance of one meter.






2. The standard unit of magnetic flux.






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






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






5. 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.






6. The conductor that is used by intent to connect the grounded circuit of an electrical wiring system or equipment to a grounding electrode with reference to earth.






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






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






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






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






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






12. Volt-ohm Meter.






13. Chemical changes and energy produced by electric currents.






14. One thousandth of an inch.






15. Symbol for Mega - one million.






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






17. The element inside a vacuum tube - incandescent lamp or other similar device.






18. The interaction of magnetism and electrical current.






19. (ampere)The basic unit of current in an electrical circuit. One ampere is the rate of flow of electric current when one coulomb of charge flows past a point in the circuit in one second. Symbolically characterized by the letter 'I' and sometimes 'A'






20. -459.67






21. ANSI;






22. The rate of transfer of energy.






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






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






25. FM; ~LINK~






26. 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.






27. In a temperature controller it is the output form that provides a current proportional to the amount of control that is required. Commonly it is the 4 to 20 milliamp current proportioning band that is used in the electronics industry.






28. The output that is produced when one or more inputs are present.






29. Current Consumption. The amount of amps or milliamps needed to maintain operation of a control or device.






30. A unit of electric charge. The amount of charge conveyed in one second by one ampere.






31. The amount of energy released in a nuclear reaction. It is expressed in atomic mass units - or in million electron volts (MEV).






32. 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.






33. IEEE;






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






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






36. A sensor or switch with the ability to detect it's relationship to a metal target without making physical contact.






37. 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






38. A material used to conduct electricity or heat.






39. ISA;






40. SI; The standard metric system of units.






41. A unit of electrical current named after French physicist Andr






42. RMS; AC voltage that equals DC voltage that will do the same amount of work. For an AC sine wave it is 0.707 x peak voltage.






43. Non-conducting material used to isolate and/or insulate energized electrical components.






44. Symbol used to denote transformer.






45. 'British Thermal Unit' - the amount of thermal energy required to raise one pound of water 1degree F. One BTU is equal to .293 watt hours. One kWh is equal to 3412 BTUs.






46. A fluctuation in the intensity of a steady current.






47. NFPA;






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






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






50. A device incorporating semiconductor material and suitable contacts capable of performing electrical functions (such as voltage - current or power amplification) with low power requirements.







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