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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 small current leaking from an output device in the off state caused by semiconductor characteristics.






2. The average temperature of a process.






3. 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.






4. (DC); Electrical current that flows consistently in one direction only.






5. A hypothetical nuclear of a quark plus an antiproton.






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






7. Symbol used to denote transformer.






8. A full-wave rectifier where the diodes are connected in a bridge circuit. This allows the current to the load during both the positive and negative alternating of the supply voltage.






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






10. Pounds per square inch gage. Pressure in relationship to the ambient air pressure>






11. A meter used to measure electrical resistance in units of ohms.






12. The time based relationship between a reference and a periodic function.






13. Intensity. The commonly used symbol used to represent Amperes when used in formulas. I = Intensity = Current = Amps = Amperes.






14. A fluctuation in the intensity of a steady current.






15. The power of one watt operating for one hour - and equal to 3 -600 joules.






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






17. The increase of the power level - current or voltage of a signal. In an amplifier it is the ratio of the output to the input signal levels.






18. The element inside a vacuum tube - incandescent lamp or other similar device.






19. The standard that is used to make comparison measurements or calibrations.






20. A connected path to earth or to a conductive body that has a reference potential to earth.






21. (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'






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






23. A coil of wire wound about a magnetic material - such as iron - that produces a magnetic field when current flows through the wire.






24. 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






25. A variable resistor.






26. The amount of heat needed to convert one pound of water to one pound of steam. Latent heat is expressed in BTU per pound.






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






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






29. The behavior of charged particles and the steady motion of charge in magnetic and electric fields.






30. Electrical energy produced by the action of heat.






31. A three mode control consisting of time Proportioning - Integral and Derivative rate action.






32. That part of a circuit which is physically interconnected.






33. A sudden and unwanted increase or decrease of supply voltage or current.






34. The voltage that is applied across a semiconductor junction to permit forward current through that junction and the device. Forward voltage is also known as 'bias.'






35. The current that is gained by a transistor when it is connected in a common emitter circuit.






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






37. A high-intensity incandescent lamp with a quartz bulb containing an inert gas of iodine or bromine vapor.






38. ISO;






39. Mm; One thousandth of a meter.






40. Radio Frequency Interference.






41. MA; One thousandth of an amp.






42. A switch with contacts that are made with actuating force and released when that force is removed.






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






44. The time it takes for a controller to complete one on/off cycle.






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






46. The opposition to electrical flow.






47. The range of voltage needed to maintain operation of a control or device.






48. The time delay between the output signal and the response time of the receiver of the signal.






49. IEC;






50. A device - instrument or component that will not produce any spark or thermal effects under any conditions that are normal or abnormal that will ignite a specified gas mixture. Electrical and thermal energy limits are at levels incapable of causing i