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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. A coil of wire designed to act as a magnet as a result of carrying an electrical current. It is usually wound on a soft iron core.
Power
Electromagnet
Kilowatt Hour
Fuse
2. An alternating current which current cycle begins later that its voltage cycle.
Secondary Winding
Lagging Current
Factors Governing Resistance
Micro Volt
3. Coil connected to the source of power on a transformer.
Lagging Current
Primary Winding
Static Electrical Charge
Magnetic Material
4. (Lode Stone) Certain type of mineral ore which has the natural Properties of a magnet.
Rotor
Current
Natural Magnet
Step- Down Transformer
5. The condition where the free electrons are caused to move in the same direction along or through a conductor.
Micro Volt
Electron Flow
Wattmeter
Micro Ampere
6. The process of producing an electromotive force in a conductor as a result of the cutting of magnetic lines of force by a conductor.
Factors Governing Resistance
Series Circuit
Electromagnetic Induction
Permanent Magnet
7. 1.Material itself (Atomic Structure - Good conductor or Bad) 2.Length of the conductor 3.Cross - sectional area (Size) 4.Temperature
Factors Governing Resistance
Ohmmeter
Permanent Magnet
Storage Battery
8. Smallest part a substance can physically divided into composed of 2 or more atoms.
Secondary Cell
Series - Parallel Circuit
Molecule
Milliampere
9. The unit of electromotive force - potential - pressure - or voltage which produces a current of one ampere in a circuit having a resistance of 1 ohm. This is the force created to move electrons through a circuit.
Valance Electron
Volt
Lines of Force
Magnetic Field
10. A unit of work or ENERGY. 1 kilowatt hour = 1 -000 watt hours
Kilowatt Hour
Electro- Motive Force
Voltage Drop
Magnetic Circuit
11. The number of cycles per second. Example: 60 cycles per second alternating current.
Frequency
Electromagnetic Induction
Leading Current
Magnetic Pole
12. A rod or strip composed of two metals having different rates or coefficients of expansion. Upon being heated - it bends in a direction which causes the material with the greater rate of expansion to be on the outside.
Current
Bimetallic Strip
Electrical Circuit
Alternating Current
13. A material which can be magnetized - principally iron.
Atom
Bimetallic Strip
Magnetic Material
Transformer
14. A circuit with two or more paths for the current to take.
Parallel Circuit
Micro Ampere
Shells
Magnetic Pole
15. 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)
Armature
Magnetic Field
Magnetic Poles
Magnetic Pole
16. A device which capacity is its chief electrical property; a device for storing or holding an electric charge; a capacitor.
Proton
Magnetic Field
Watt
Condenser
17. A unit of power; equal to 550 foot- pounds per second of approximately 746 watts.
Horsepower
Ohm's Law
Resistance
Circuit
18. Certain quantity of electrons. The unit of measure that specifies the rate at which electric current flows per second.
Coulomb
Bound Electrons
Electron
Condenser
19. A cell which is rechargeable. Uses materials which change in compostition during delivery of current - but may be restored to original condition upon recharge.
Step- Down Transformer
Natural Magnet
Watt
Secondary Cell
20. In a battery - the electrode which takes up the electrons returning from the external circuit.
Electrolyte
Positive Plate
Secondary Winding
Electromagnetic Induction
21. Single NEGATIVE electrical charge. Orbits around the nucleus some in paths close to the nucleus - others in paths varying distance from the nucleus.
Coulomb
Electron
Kilowatt
Electric Generator
22. The unit of Electro- Motive Force
Watt
Ohm's Law
Volt
Permanent Magnet
23. Iron and certain alloys of iron which are magnetized by artificial means.
Parallel Circuit
Artificial Magnet
Wattmeter
Watt
24. Those electrons in orbit nearest the nucleus - not easily dislodged from their normal orbits.
Primary Winding
Static Electrical Charge
Horsepower
Bound Electrons
25. 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.
Step- Down Transformer
Power
Residual Magnetism
Magnetic Poles
26. Meter used to measure resistance in an electrical circuit.
Proton
Lines of Force
Ohmmeter
Ohm's Law
27. One- thousandth of volt.
Natural Magnet
Molecule
Kilowatt
Millivolt
28. The rotating member of an electrical machine.
Series Circuit
Rotor
Static Electrical Charge
Nucleus
29. Single POSITIVE electrical charge - located in the middle of an atom.
Magnetic Field
Permeability
Static Electrical Charge
Proton
30. Negative charge of electricity
Amp Meter
Electron
Circuit
Micro Volt
31. The path of an electric current. To permit a steady flow of current - the path must be complete. Commonly - a complete circuit includes a device for the production of an electromotive force - connecting wires - and a device supplied with electricity.
Alternator
Magnetic Field
Alternating Current
Circuit
32. A generator that produces alternating current.
Micro Ohm
Permeability
Step- Down Transformer
Alternator
33. A cell which is composed of certain materials which are used up during the process of delivering electric current.
Parallel Circuit
Nucleus
Kilowatt Hour
Primary Cell
34. The property of a material that opposes the flow of current.
Parallel Circuit
Volt
Secondary Cell
Resistance
35. An instrument for measuring electrical power. Most common use: The meter of your house to measure electrical consumption.
Amp Meter
Wattmeter
Frequency
Shells
36. A complete sequence of events - as an alternating- current cycle.
Electromagnet
Primary Cell
Cycle
Static Electrical Charge
37. A device used to change the voltage of an alternating current circuit.
Resistance
Transformer
Electro- Motive Force
Permeability
38. The difference between the electrical condition of one point in an electric circuit and that of another point which tends to cause current to flow between two points. Measured in volts.
Transformer
Potential Difference
Ohm's Law
Proton
39. Any of the spaces occupied by the orbits of a group of electrons of approximately equal energy surronding the nucleus of an atom.
Shells
Circuit
Armature
Horsepower
40. In an electrical circuit - or part of an electric circuit - the intensity of the current is equal to the electromotive force that drives it divided by the resistance of the circuit.
41. The magnetism which a material retains after the magnetic force which magnetized it has been removed.
Residual Magnetism
Free Electrons
Electron Flow
Positive Plate
42. The complete path through which the lines of force travel - leaving the north pole and re- entering the south pole.
Natural Magnet
Magnetic Circuit
Power
Micro Volt
43. One millionth of an ohm.
Micro Ohm
Horsepower
Free Electrons
Magnetic Poles
44. Shows relationship between Current - Voltage - Wattage and Resistance.
45. The voltage dissipation between any two points in a circuit. The voltage 'dropped' or 'dissipated' in forcing current through a resistance.
Voltmeter
Voltage Drop
Volt
Mega Ohm
46. The area surrounding a magnet in which magnetic properties are exhibited
Proton
Magnetic Field
Current
Watt
47. A circuit with more than one path. Current branches to flow in every available path.
Lines of Force
Ohm
Parallel Circuit
Series - Parallel Circuit
48. Fundamental constituents of matter. The 'elements' (tiny particles) which come together in various combinations to form molecules of many substances.
Permeability
Atom
Electrical Circuit
Lagging Current
49. Opposition to current flow
Non - Magnetic Material
Electric Generator
Factors governing the Value of EMF of a Generator
Resistance
50. Electric charges at rest. Caused by friction of materials - where a surplus of electrons exists and may be discharged.
Static Electrical Charge
Electron
Leading Current
Rotor