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Electrical Components

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 device that transfers power or energy from one system to another - such as taking a physical quality and changing it to an electrical signal.






2. Mm; One thousandth of a meter.






3. The rate at which electricity flows - measured in amperes - 1 ampere = 1 coulomb per second.






4. See; 'Proximity Sensor'.






5. One of the very small discrete packets into which many forms of energy are subdivided.






6. In a three phase connection all three phases are connected in series thus forming a closed circuit.






7. Normally Closed.






8. A circuit conductor that is grounded to become part of the electric circuit by design and intent.






9. (ampere)The basic unit of current in an electrical circuit. One ampere is the rate of flow of electric current when one coulomb of charge flows past a point in the circuit in one second. Symbolically characterized by the letter 'I' and sometimes 'A'






10. EPA; ~LINK~






11. The average temperature of a process.






12. An area in which combustible or flammable mixtures are or could be present.






13. An electrically conductive fused salt or a solution where the charge is carried by ionic movement.






14. The basic of thermal energy. The work done by the force of one newton acting through a distance of one meter.






15. The rate of transfer of energy.






16. UL; ~LINK~






17. Very High Frequency.






18. OSHA;






19. A form of silicone dioxide. Commonly used in the making of radio transmitters and heat resistant products.






20. An interconnected arrangement of parts for carrying high-voltage electricity.






21. Pressure that is less than atmospheric pressure.






22. 'Common Mode Voltage.' The voltage which is tolerable between signal and ground.






23. Symbol used to denote transformer.






24. The conductor that is used by intent to connect the grounded circuit of an electrical wiring system or equipment to a grounding electrode with reference to earth.






25. In a temperature controller it is the output form that provides a current proportional to the amount of control that is required. Commonly it is the 4 to 20 milliamp current proportioning band that is used in the electronics industry.






26. Ultra High Frequency






27. A panel meter with zero and span adjustments - commonly scaled for signals such as 1-5 volts - 4-20mA - etc.






28. Volt-ohm Meter.






29. A solid-state switching device for semiconductors to convert AC current in one of two directions controlled by an electrode.






30. A positive (+) electrode. The point where electrons exit from a device to the external electric circuit.






31. Magnetically - opposite poles - north and south. In electricity - oppositely charged poles - positive and negative.






32. The measured amount of electrical energy that represents the electrostatic forces between atomic particles. The nucleus of an atom has a positive charge (+) and the electrons have a negative charge(-).






33. A reference point at zero potential with respect to the earth. In an electronic circuit it is the common return path for electric current. A conducting connection between the earth and an electrical circuit or electrical equipment. Also - the negativ






34. The adjustment of a display that results are zero on the display corresponding to a non-zero signal.






35. ISO;






36. A device incorporating semiconductor material and suitable contacts capable of performing electrical functions (such as voltage - current or power amplification) with low power requirements.






37. -459.67






38. The speed or time rate of change of displacement.






39. The act of the opening of an electrical circuit.






40. An electromagnetic radiation produced when the inner satellite electrons of heavy atoms have been excited by collision with a stream of fast electrons return to their ground state - giving up the energy previously imparted to them.






41. The energy delivered by a circuit or device. The electrical signal produced by the input to the transducer.






42. The mechanism of a switch which operates the contacts.






43. A Solid State relay is a switching device that completes or interrupts a circuit electrically and has no moving parts. A Mechanical relay is an electromechanical device that closes contacts to complete a circuit or opens contacts to interrupt a circu






44. A silicone semiconductor that maintains a fixed voltage in a circuit.






45. Inspection - analysis and action required to ensure quality of output.






46. When there is current through a semiconductor p-n junction it is the resistance of a forward-biased junction.






47. A device that converts AC voltage to pulsating DC voltage.






48. The unit by which electrical resistance is measured. One ohm is equal to the current of one ampere which will flow when a voltage of one volt is applied






49. Kva; One thousand volt amps.






50. A full path of electrical current from a voltage source that passes completely from one terminal of the voltage source to another.