Test your basic knowledge |

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 flow of electrons (-) through a material






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






4. Voltage Source - Conductor - Switch - Load






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






6. A device that changes mechanical energy into electricity






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






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






9. Positively charged particles of an atom






10. 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






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






12. Temperature Controlled






13. One or more cells connected in series






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






15. 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 -






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






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






18. Neutral charged particles of an atom






19. 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.






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






21. Atoms that have acquired an electrical charge






22. Negatively charged particles of an atom






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






24. 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






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






26. 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






27. 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.






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






29. 125 and 250 VDC.






30. 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






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






32. 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.






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






34. The flow of electrons






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


36. 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






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






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






39. V=IR.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






41. An electrode where free electrons are produced






42. A material in which charge moves through easily






43. 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.






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






45. The product of voltage times current






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






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






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






49. An electrode where reduction occurs






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