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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. Atoms that have acquired an electrical charge






2. A voltage source that does not change polarity such as that delivered from a battery.






3. V=IR.


4. 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






5. Positively charged particles of an atom






6. 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






7. The product of voltage times current






8. 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 ****






9. An electrode where free electrons are produced






10. 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 -






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






12. 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.






13. 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.






14. Any path that electrons flow through






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






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






17. 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.






18. Neutral charged particles of an atom






19. 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






20. A material in which charge moves through easily






21. 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






22. A device that changes mechanical energy into electricity






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






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






25. Voltage Source - Conductor - Switch - Load






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


27. 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.






28. Negatively charged particles of an atom






29. 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






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






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






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






33. 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.






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






35. An electrode where reduction occurs






36. One or more cells connected in series






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






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






40. 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.






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






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






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 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.






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






47. 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






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






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






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