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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. The path of an electron in an atom or molecule






2. 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.






3. 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






4. 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 -






5. 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






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






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






8. 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






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






10. The product of voltage times current






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


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






13. 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.






14. V=IR.


15. 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






16. 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.






17. An electrode where reduction occurs






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






19. Operate somewhat like check valves such that current only flows in one direction - when the voltage on the input is higher than the output






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






21. 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






22. 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






23. An electrode where free electrons are produced






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






25. Neutral charged particles of an atom






26. 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.






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






28. Temperature Controlled






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






30. 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






31. 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.






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






33. Atoms that have acquired an electrical charge






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






35. Used to convert mechanical energy to electrical energy coupled to the turbine shaft






36. Are used to provide low voltage circuits for use in metering - monitoring - and protective relaying applications. The turns ratio of the transformer determines the low voltage rating as a function of the system voltage - and is often selected to be 1






37. Unit's main generator - offsite power via the switchyard - and redundant emergency diesel generators






38. Any path that electrons flow through






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






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






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


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






43. Negatively charged particles of an atom






44. A circuit with a break in its path






45. 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.






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






47. The flow of electrons






48. One or more cells connected in series






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






50. 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.