Test your basic knowledge |

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. IBEW;






2. Radio Frequency Interference.






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






4. Expressed in webers - it is the product of the average normal component of the magnetic intensity over a surface and the area of that surface.






5. An electrical resistor composed of semiconductor material - whose resistance is a known rapidly varying function of temperature.






6. Kwh; One thousand watt-hours.






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






8. A form of energy produced by the flow of particles of matter and consists of commonly attractive positively (protons [+]) and negatively (electrons [-]) charged atomic particles. A stream of electrons - or an electric current.






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






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






11. The amount of energy released in a nuclear reaction. It is expressed in atomic mass units - or in million electron volts (MEV).






12. ISA;






13. 'British Thermal Unit' - the amount of thermal energy required to raise one pound of water 1degree F. One BTU is equal to .293 watt hours. One kWh is equal to 3412 BTUs.






14. UL; ~LINK~






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






16. The form of radiation used to make non-contact temperature measurements. In the electromagnetic spectrum it is the area beyond red light from 760 nanometers to 1000 microns.






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






18. Voltage; The unit of electromotive force (EMF) that causes current to flow. One volt causes a current of one amp through a resistance of one ohm.






19. MLS; A photoelectric control that operates on pulsed infrared radiation at a specific frequency - and responds only to that frequency of pulse. MLS is used frequently in areas where ambient light may cause problems with other types of sensors.






20. Ultra High Frequency






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






22. The unit for capacitance. A capacitor that stored one coulomb of charge with one volt across it will have a value of one farad.






23. A device having two terminals and has a low resistance to electrical current in one direction and a high resistance in the other direction.






24. The standard unit of magnetic flux.






25. The moving of electricity or heat through a conductor.






26. Protective circuitry to guard against spikes that might be induced on the supply line.






27. The interaction of magnetism and electrical current.






28. The amount of power that is consumed and converted to heat.






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






30. Commonly used in generators and motors - it is an electromagnet formed from a coil of insulated wire that is wound around a soft iron core.






31. FM; ~LINK~






32. A variable resistor.






33. A process that is kept at a constant temperature.






34. The opposition to electrical flow.






35. EPA; ~LINK~






36. A highly accurate bridge configuration that is used to measure three-wire RTD thermometers.






37. Electric current passing through an electrolyte which produces chemical changes in it.






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






39. -459.67






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






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






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






43. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.






44. The average temperature of a process.






45. Pounds per square inch differential. The difference in pressure between two points.






46. Variable Frequency.






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






48. The range of temperature over which a device may be safely used. The temperature range which the device has been designed to operate.






49. A tube - pipe or trough that carries and protects electric wiring.






50. MV; One thousandth of a volt. The difference in potential needed to cause a current of one milliampere flow through a resistance of one ohm.







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests