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






2. The product of voltage times current






3. Neutral charged particles of an atom






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

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5. 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.






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






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






8. Voltage Source - Conductor - Switch - Load






9. 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.






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






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






12. Temperature Controlled






13. 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






14. 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.






15. An electrode where reduction occurs






16. The flow of electrons






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






18. Significant impact on the capability of equipment to perform properly since the torque delivered by a motor is proportional to the voltage squared






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






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






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






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






23. 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.






24. A material in which charge moves through easily






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






26. 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.






27. 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






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






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






30. 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






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






32. Atoms that have acquired an electrical charge






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






35. 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.






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






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






38. An electrode where free electrons are produced






39. 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






40. 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






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






42. One or more cells connected in series






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






44. 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






45. 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






46. Changes the voltage of electricity so that it can be transferred over long distances






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






48. Is a configuration used for very high current bus assemblies typically operating at generator voltage levels of 20 to 24 kV where each conductor is mounted within its own enclosure.






49. Positively charged particles of an atom






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