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






2. 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






3. 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.






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






5. 125 and 250 VDC.






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






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






8. The flow of electrons






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






10. 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


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






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






13. Atoms that have acquired an electrical charge






14. The product of voltage times current






15. 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.






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






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






18. 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






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






20. 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.






21. 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.






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






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






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






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






26. V=IR.

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


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






28. One or more cells connected in series






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






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






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






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






33. A device that changes mechanical energy into electricity






34. Negatively charged particles of an atom






35. 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 ****






36. 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






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






38. Used to supply power to large industrial and commercial facilities as well as the Retail System. lines can be compared to state highways and major roads around cities.






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






40. Any path that electrons flow through






41. 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.






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






43. 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.






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






45. 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






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






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






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. Positively charged particles of an atom






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