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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. 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.






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






3. Used in numerous applications to amplify or perform switching operations.






4. A device that changes mechanical energy into electricity






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






6. Positively charged particles of an atom






7. An electrode where free electrons are produced






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






9. 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.






10. A circuit with a break in its path






11. A material in which charge moves through easily






12. 125 and 250 VDC.






13. 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






14. 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






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






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






17. Atoms that have acquired an electrical charge






18. 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






19. Neutral charged particles of an atom






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






21. An electrode where reduction occurs






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






23. One or more cells connected in series






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






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






26. The product of voltage times current






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






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






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






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






31. 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.






32. Any path that electrons flow through






33. The flow of electrons






34. 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 -






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






36. 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.






37. 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






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


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






40. 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






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






42. 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.






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






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






45. V=IR.


46. 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






47. 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.






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






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






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