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






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






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






4. A material that has no resistance to electrical current - this usually occurs near absolute zero






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






6. A material that dissolves in water producing a solution that conducts electricity






7. Temperature Controlled






8. 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 ****






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






10. An electrode where reduction occurs






11. protect your eyes and clothing. air must be circulated through the battery rooms with large stationary batteries to prevent a build-up of a combustible mixture.System cannot be grounded. First ground should do nothing.






12. Represents the power transferred to or from capacitive and inductive elements in an AC circuit and is measured in volt-amperes reactive. Voltage and current are 90






13. 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.






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






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






16. Neutral charged particles of an atom






17. The product of voltage times current






18. Atoms that have acquired an electrical charge






19. The flow of electrons






20. Used for transmission systems which are used for transporting bulk power from large generators to areas with heavy load concentrations such as cities.






21. An electrode where free electrons are produced






22. An assembly of circuit breakers typically used to supply power to large motors and medium or low voltage transformers within the auxiliary power system. Each breaker is contained in a separate cubicle along with associated current transformers - and






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






24. 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 -






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






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






27. An assembly of low voltage circuit breakers and/or starters used to supply individual loads of small to moderate sizes. Each feeder circuit is typically contained in a separate compartment or bucket.






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






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






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

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31. 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






32. 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






33. 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.






34. Large battery - a battery charger - and a distribution panel






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






36. Positively charged particles of an atom






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






38. A circuit with a break in its path






39. Are used to provide low current circuits for use in metering - monitoring - and protective relaying applications. The turns ratio determines the amount of current that will be available in the secondary as a function of the system current on the prim






40. 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.






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

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42. 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






43. 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






44. 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.






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






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






47. Is the vector sum of real and reactive power in an AC circuit and is measured in volt-amperes.






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






49. One or more cells connected in series






50. Voltage Source - Conductor - Switch - Load