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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. Any path that electrons flow through






2. The product of voltage times current






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






4. 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.






5. The flow of electrons






6. 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 -






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






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






9. Positively charged particles of an atom






10. 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.






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






12. A material in which charge moves through easily






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






14. Voltage Source - Conductor - Switch - Load






15. An electrode where reduction occurs






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






17. 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.






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






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






20. Neutral charged particles of an atom






21. 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






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






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






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






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






26. 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.






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






28. 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






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


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






31. Negatively charged particles of an atom






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






33. 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






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






35. 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






36. One or more cells connected in series






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






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






39. 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.






40. V=IR.


41. 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.






42. 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 ****






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






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






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






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






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






48. 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.






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






50. 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