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Test your basic knowledge |
Basic Electricity Vocab
Start Test
Study First
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. Transformer coil connected to the load. (Output side of a transformer regardless of voltage).
Shells
Magnetic Field
Magnetic Material
Secondary Winding
2. A unit of power.
Ohm
Lines of Force
Molecule
Watt
3. Certain quantity of electrons. The unit of measure that specifies the rate at which electric current flows per second.
Lines of Force
Horsepower
Resistance
Coulomb
4. The liquid solution (sometime a paste) in which the electrodes are placed.
Electron Flow
Magnetism
Electrolyte
Electron
5. The condition where the free electrons are caused to move in the same direction along or through a conductor.
Electron Flow
Secondary Cell
Voltage Drop
Non - Magnetic Material
6. Shows relationship between Current - Voltage - Wattage and Resistance.
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7. Smallest part a substance can physically divided into composed of 2 or more atoms.
Parallel Circuit
Electron Flow
Fuse
Molecule
8. (Lode Stone) Certain type of mineral ore which has the natural Properties of a magnet.
Electrode
Coulomb
Natural Magnet
Micro Volt
9. One- thousandth of a ampere
Coulomb
Horsepower
Series - Parallel Circuit
Milliampere
10. A transformer designed to raise the voltage of an alternating current. Most common use; In a generating plant to raise the voltage.
Alternator
Magnetic Field
Step-Up Transformer
Positive Plate
11. A transformer designed to lower voltage of an alternating current. Most common type of transformer used on a power system.
Micro Ampere
Step- Down Transformer
Resistance
Electron
12. A material which can be magnetized - principally iron.
Horsepower
Magnetic Material
Primary Cell
Electron
13. Occurs when a stream of electrons are caused to move through a conductor.
Coulomb
Resistor
Milliampere
Current
14. Invisible lines along which magnetic energy travels from one pole of a magnet to the other.
Lines of Force
Series Circuit
Ohmmeter
Magnetic Field
15. A device used to change the voltage of an alternating current circuit.
Parallel Circuit
Electron
Transformer
Amp Meter
16. Negative charge of electricity
Magnetic Pole
Electron
Amp Meter
Magnetic Field
17. Those electrons in orbit nearest the nucleus - not easily dislodged from their normal orbits.
Bound Electrons
Wattmeter
Factors Governing Resistance
Shells
18. A material that has many free electrons thus allowing electric current to flow through it easily.
Magnetic Field
Conductor
Nucleus
Step-Up Transformer
19. One millionth of a volt.
Micro Volt
Non - Magnetic Material
Short Circuit
Coulomb
20. Several secondary cells connected together for either a greater voltage or current output.
Storage Battery
Lines of Force
Magnetic Field
Insulator
21. (EMF) The force created by an electric generator (or by other means) which causes current to flow. (Same as Voltage - Volts - Electric Potential - Pressure).
Free Electrons
Nucleus
Electro- Motive Force
Resistor
22. An instrument for measuring electromotive force in volts. It must be connected across the load that causes the votage drop.
Electric Generator
Coulomb
Electrical Circuit
Voltmeter
23. A measuring device.
Insulator
Meter
Bimetallic Strip
Impedance
24. A circuit with more than one path. Current branches to flow in every available path.
Factors Governing Resistance
Transformer
Parallel Circuit
Series Circuit
25. Fundamental constituents of matter. The 'elements' (tiny particles) which come together in various combinations to form molecules of many substances.
Shells
Factors Governing Resistance
Resistance
Atom
26. Positive charge of electricity. Located in the nucleus of the atom.
Voltage Drop
Proton
Artificial Magnet
Armature
27. An alternating current which current cycle begins later that its voltage cycle.
Lagging Current
Free Electrons
Conductor
Residual Magnetism
28. One million ohms.
Milliampere
Resistance
Kilowatt
Mega Ohm
29. One millionth of an ampere.
Wattmeter
Electric Generator
Micro Volt
Micro Ampere
30. Any of the spaces occupied by the orbits of a group of electrons of approximately equal energy surronding the nucleus of an atom.
Ohm's Law
Conductor
Shells
Insulator
31. An instrument for measuring electric current
Artificial Magnet
Resistor
Amp Meter
Proton
32. In a battery - the electrode which takes up the electrons returning from the external circuit.
Factors governing the Value of EMF of a Generator
Magnetic Pole
Cycle
Positive Plate
33. Term applied to the loss of voltage in forcing current through any portion of a circuit. Different factors will cause a drop; material - size - (cross - sectional area) length - temperature.
Artificial Magnet
Voltage Drop
Proton
Secondary Winding
34. The space around a magnet in which the magnetic force is felt.
Three -Phase Circuit
Proton
Conductor
Magnetic Field
35. A complete sequence of events - as an alternating- current cycle.
Magnetic Lines of Force
Fuse
Cycle
Electric Generator
36. The part of the magnet where the magnetic force is most concentrated. Commonly referred to as the North or South pole or the positive or negative poles)
Magnetic Pole
Electro- Motive Force
Residual Magnetism
Factors Governing Resistance
37. A material which CANNOT be magnetized. Example: Wood - Glass - Brass - Rubber...
Free Electrons
Permanent Magnet
Non - Magnetic Material
Permeability
38. The process of producing an electromotive force in a conductor as a result of the cutting of magnetic lines of force by a conductor.
Current
Electromagnetic Induction
Ampere
Primary Cell
39. A circuit in which there is resistance (load) connected both in series and parallel.
Series - Parallel Circuit
Ohm's Law
Lines of Force
Factors governing the Value of EMF of a Generator
40. The time rate at which work is done or energy is transferred. When a pressure of 1 volt sends a current of 1 ampere through a resistance of 1 ohm - the power in the circuit is said to be 1 watt.
Parallel Circuit
Atom
Ampere
Power
41. Electric charges at rest. Caused by friction of materials - where a surplus of electrons exists and may be discharged.
Static Electrical Charge
Shells
Rotor
Magnetic Pole
42. A circuit with only one path for current to flow. There are no branches.
Electromagnetic Induction
Micro Ampere
Rheostat
Series Circuit
43. The area surrounding a magnet in which magnetic properties are exhibited
Series Circuit
Factors Governing Resistance
Magnetic Field
Ohm
44. 1.Material itself (Atomic Structure - Good conductor or Bad) 2.Length of the conductor 3.Cross - sectional area (Size) 4.Temperature
Step- Down Transformer
Secondary Cell
Factors Governing Resistance
Current
45. Single POSITIVE electrical charge - located in the middle of an atom.
Volt
Magnetic Material
Lagging Current
Proton
46. Rate of electrons flow (current flow). When one 'Coulomb' of electrons pass a given point in one second.
Volt
Voltmeter
Ampere
Factors governing the Value of EMF of a Generator
47. Iron and certain alloys of iron which are magnetized by artificial means.
Electro- Motive Force
Artificial Magnet
Resistance
Ohmmeter
48. A unit of POWER. 1 kilowatt = 1 -000 watts
Resistance
Electrode
Series Circuit
Kilowatt
49. A circuit carrying three alternating currents whose cycles begin one after another. 120 electrical degrees apart.
Resistance
Three -Phase Circuit
Volt
Bound Electrons
50. A connection of circuit of low resistance. Current through each of the end- to- end devices is exactly the same. Only one path for the current.
Micro Ohm
Series Circuit
Lagging Current
Lines of Force