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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 circuit with a break in its path






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






3. 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






4. V=IR.


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






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






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






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






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






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






11. An electrode where reduction occurs






12. Positively charged particles of an atom






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






14. Negatively charged particles of an atom






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






16. 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






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






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






19. A device that changes mechanical energy into electricity






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






21. Any path that electrons flow through






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






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






24. Neutral charged particles of an atom






25. Voltage Source - Conductor - Switch - Load






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






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






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






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






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






31. One or more cells connected in series






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


33. 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.






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






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






36. 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






37. A material in which charge moves through easily






38. 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.






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






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






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






42. 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.






43. 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






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. 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.






46. 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 ****






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






48. 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






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






50. An electrode where free electrons are produced