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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 instantaneous movement from negatively charged atoms to positively charged atoms






2. 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






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






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






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






6. 125 and 250 VDC.






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


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






9. Negatively charged particles of an atom






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






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






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






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






14. 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






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






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


17. 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 -






18. A circuit with a break in its path






19. 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.






20. The product of voltage times current






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






22. 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






23. 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






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






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






26. A material in which charge moves through easily






27. Atoms that have acquired an electrical charge






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






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






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






31. 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






32. A device that changes mechanical energy into electricity






33. 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.






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






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






36. Positively charged particles of an atom






37. V=IR.


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






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






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






41. 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






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






43. 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 ****






44. 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.






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






46. 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






47. Temperature Controlled






48. One or more cells connected in series






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






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