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






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






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






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. The product of voltage times current






7. Atoms that have acquired an electrical charge






8. 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.






9. 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






10. An electrode where free electrons are produced






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






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






13. A material in which charge moves through easily






14. A circuit with a break in its path






15. 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 ****






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






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






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






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






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






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






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






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






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






25. 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.






26. Neutral charged particles of an atom






27. 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.






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






29. 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.






30. 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.






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






32. 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






33. 125 and 250 VDC.






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






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






37. An electrode where reduction occurs






38. 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






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






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






41. 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.






42. 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.






43. 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






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






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






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






47. Any path that electrons flow through






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






49. One or more cells connected in series






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

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