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Electrical Engineering

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. A circuit with a break in its path






2. A voltage source that does not change polarity such as that delivered from a battery.






3. Temperature Controlled






4. A material that is usually insulated but becomes conductive through the addition of an impurity






5. Is typically used for medium voltage applications where the 3 phase conductors can be mounted within the same enclosure.






6. An electrode where reduction occurs






7. The path of an electron in an atom or molecule






8. Are used at low voltages rather than medium voltage and they contain CTs and protective devices as part of the assembly.






9. (analogous to flow) predominantly flows on the surface of the conductor.






10. The flow of electrons (-) through a material






11. An energy storage device that converts chemical energy to electricity when power is needed.






12. A fundamental quantity in electricity (+ or -)






13. Main Generator feeds main transformer - aux transformer (to aux loads) and crosstie to train B






14. The instantaneous movement from negatively charged atoms to positively charged atoms






15. High voltage breakers and buses are arranged to allow power flow on the grid while isolating individual generators - transformers or transmission lines as needed. Power from the plant is delivered to the grid via the plant ****** - and the ******* se






16. Used in numerous applications to amplify or perform switching operations.






17. Used to isolate equipment but are typically not designed to be opened or closed while the circuit is energized (i.e. they're not designed to interrupt current). Also used in switchyard to isolate equipment






18. The power output from the plant is stepped up in voltage to match the grid voltage. Transformers that are used to provide offsite power to the plant (e.g. when the generator is off-line) step down the voltage.






19. Any path that electrons flow through






20. Atoms that have acquired an electrical charge






21. Building blocks of elements consisting of a positively charged nucleus surrounded by electrons






22. Negatively charged particles of an atom






23. Similar to switchgear except for use in low voltage versus medium voltage applications. used to supply power to motor control centers and large individual low voltage motors in some applications.






24. A material through which a charge does not move easily






25. Nuclear fuel is used to produce heat which is used to create steam. The steam is used to spin the turbine. The turbine shaft is connected to the generator rotor. The mechanical energy is converted to electrical energy through the generator.






26. The flow of electrons






27. Total Current entering a junction must equal current leaving a junction


28. Power Systems Branch [Position] one required nuclear utilities to install degraded grid voltage relay schemes to preclude connecting safety related loads to the grid following an accident if grid voltage should be inadequate to support required opera






29. A condition where one or more phases have come into contact with ground or other phase(s) of the circuit - or the insulation separating them has been degraded. The current flow is only limited by the impedance between the source(s) and the ****






30. Changes in voltage caused by motor starts or other loads being switched onto an electrical system






31. A circuit with a complete path - which allows for charges to move






32. If you are requesting service for new loads - or are making changes that affect the time when a load would operate or the amount of load -






33. Used to supply power to large industrial and commercial facilities as well as the Retail System. lines can be compared to state highways and major roads around cities.






34. May be used to power various low voltage loads and are typically used for applications that do not require any form of remote control.






35. A mechanical switching device used to either enable or interrupt current flow in a circuit. Typically provides both overload and fault protection. Is similar to a fuse; however - can be reset and reused.






36. Requires - in part - that (1) electric power from the transmission network to the onsite distribution system shall be supplied by two physically independent circuits (not necessarily on separate rights of way) designed and located so as to minimize t






37. An electrode where free electrons are produced






38. Analogous to a power plant switchyard but on the load end. Voltage is stepped down to Distribution System voltages.






39. The source voltage is equal to the sum of the voltage drops across the elements of the circuit and the load.


40. A solid conductor through which a current enters or exits a medium






41. Used at low voltage levels (600 volts and below) to feed individual loads. These devices typically contain a thermal magnetic element which provides an inverse time tripping characteristic.






42. Voltage is stepped down again to serve smaller industrial and commercial customers as well as residential needs.






43. 125 and 250 VDC.






44. Neutral charged particles of an atom






45. Is measured in watts and represents the power consumed by the resistive elements in an AC circuit






46. Voltage is stepped down again to serve smaller industrial and commercial customers as well as residential needs.






47. Used to optimize power output. Multiply by root 3.






48. Offsite power comes in via sartup transformer and some sites can backfeed power from grid via the main transformer OR even a crosstie






49. A device that changes mechanical energy into electricity






50. Are used to supply power to smaller industrial and commercial users as well as residential customers. These lines can be compared to local roads such as the one in your local area or neighborhood - i.e. they're designed to handle the needs of local t