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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 resistor designed so that its resistance is readily adjusted.
Rotor
Voltage Drop
Molecule
Rheostat
2. 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.
Electromagnet
Parallel Circuit
Armature
Permanent Magnet
3. In a battery - the electrode which takes up the electrons returning from the external circuit.
Wattmeter
Positive Plate
Rheostat
Potential Difference
4. A transformer designed to raise the voltage of an alternating current. Most common use; In a generating plant to raise the voltage.
Series Circuit
Step-Up Transformer
Magnetic Material
Lagging Current
5. A material which can be magnetized - principally iron.
Positive Plate
Magnetic Material
Permeability
Micro Ampere
6. A circuit in which there is resistance (load) connected both in series and parallel.
Series - Parallel Circuit
Plates
Potential Difference
Shells
7. An instrument for measuring electromotive force in volts. It must be connected across the load that causes the votage drop.
Proton
Voltmeter
Magnetic Field
Magnetic Poles
8. An instrument for measuring electrical power. Most common use: The meter of your house to measure electrical consumption.
Wattmeter
Ohmmeter
Alternator
Bound Electrons
9. Any of the spaces occupied by the orbits of a group of electrons of approximately equal energy surronding the nucleus of an atom.
Primary Cell
Shells
Atom
Proton
10. A unit of work or ENERGY. 1 kilowatt hour = 1 -000 watt hours
Power
Milliampere
Kilowatt Hour
Artificial Magnet
11. Certain quantity of electrons. The unit of measure that specifies the rate at which electric current flows per second.
Shells
Potential Difference
Coulomb
Transformer
12. A cell which is composed of certain materials which are used up during the process of delivering electric current.
Primary Cell
Watt
Proton
Atom
13. A short circuit between two energized conductors and/or an energized conductor and a grounded phase. Very high current flow.
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14. A complete sequence of events - as an alternating- current cycle.
Kilowatt Hour
Lagging Current
Cycle
Positive Plate
15. A transformer designed to lower voltage of an alternating current. Most common type of transformer used on a power system.
Frequency
Ohm's Law
Parallel Circuit
Step- Down Transformer
16. One millionth of a volt.
Free Electrons
Step-Up Transformer
Micro Volt
Series Circuit
17. The complete path through which the lines of force travel - leaving the north pole and re- entering the south pole.
Cycle
Voltmeter
Armature
Magnetic Circuit
18. One- thousandth of volt.
Magnetic Lines of Force
Millivolt
Magnetism
Electrolyte
19. The magnetism which a material retains after the magnetic force which magnetized it has been removed.
Magnetic Poles
Ohmmeter
Residual Magnetism
Natural Magnet
20. A rate of movement of electrons through a conductor.
Parallel Circuit
Current
Storage Battery
Electrode
21. The space around a magnet in which the magnetic force is felt.
Magnetic Field
Leading Current
Magnetic Circuit
Transformer
22. 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.
Static Electrical Charge
Magnetism
Lines of Force
Series Circuit
23. Single POSITIVE electrical charge - located in the middle of an atom.
Permanent Magnet
Circuit
Proton
Kilowatt Hour
24. An alternating current which current cycle begins earlier than its voltage cycle.
Magnetic Lines of Force
Ampere
Electron
Leading Current
25. Lines representing the direction of the magnetic force in a magnetic field.
Electrode
Magnetic Lines of Force
Molecule
Volt
26. Shows relationship between Current - Voltage - Wattage and Resistance.
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27. A circuit with more than one path. Current branches to flow in every available path.
Rotor
Parallel Circuit
Armature
Bound Electrons
28. The area surrounding a magnet in which magnetic properties are exhibited
Nucleus
Condenser
Atom
Magnetic Field
29. Total and complete opposition to the flow of electrons
Artificial Magnet
Micro Ohm
Impedance
Electromagnet
30. Coil connected to the source of power on a transformer.
Permeability
Step- Down Transformer
Parallel Circuit
Primary Winding
31. 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.
Magnetic Field
Magnetism
Voltage Drop
Series - Parallel Circuit
32. One- thousandth of a ampere
Electrode
Milliampere
Micro Ampere
Kilowatt Hour
33. Transformer coil connected to the load. (Output side of a transformer regardless of voltage).
Step-Up Transformer
Power
Kilowatt
Secondary Winding
34. Meter used to measure resistance in an electrical circuit.
Ohmmeter
Electromagnet
Natural Magnet
Resistor
35. Fundamental constituents of matter. The 'elements' (tiny particles) which come together in various combinations to form molecules of many substances.
Valance Electron
Atom
Residual Magnetism
Magnetic Field
36. 1.Speed of conductors cutting lines of force 2.Strength of the magnetic field 3.Length of conductors cutting through the field
Factors governing the Value of EMF of a Generator
Resistance
'Crose Phase'
Volt
37. A unit of power; equal to 550 foot- pounds per second of approximately 746 watts.
Magnetic Pole
Magnetic Lines of Force
Voltmeter
Horsepower
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.
Potential Difference
Watt
Voltage Drop
Magnetic Field
39. (Lode Stone) Certain type of mineral ore which has the natural Properties of a magnet.
Micro Ohm
Positive Plate
Horsepower
Natural Magnet
40. Negative charge of electricity
Bound Electrons
Secondary Winding
Electron
Proton
41. A machine which utilizes magnetism to produce an EMF and consequently - an electric circuit.
Electric Generator
Permanent Magnet
Kilowatt Hour
Electrode
42. A certain force exhibited by some materials which give them the ability to attract other materials. Principally iron or its alloys.
Magnetism
Primary Cell
Micro Ohm
Non - Magnetic Material
43. A current which reverses in direction at regularly recurring intervals - the total flow in one direction being equal to that in the other direction.
Millivolt
Series - Parallel Circuit
Alternating Current
Volt
44. A unit of power.
Ampere
Kilowatt
Watt
Residual Magnetism
45. The rotating member of an electrical machine.
Leading Current
Rotor
Step-Up Transformer
Bimetallic Strip
46. The voltage dissipation between any two points in a circuit. The voltage 'dropped' or 'dissipated' in forcing current through a resistance.
Parallel Circuit
Step- Down Transformer
Watt
Voltage Drop
47. Any device which may be placed in the circuit and which offers opposition to the flow of electrons around the circuit.
Voltage Drop
Transformer
Resistor
Magnetic Pole
48. The property of a material that opposes the flow of current.
Resistance
Non - Magnetic Material
Static Electrical Charge
Permeability
49. Single NEGATIVE electrical charge. Orbits around the nucleus some in paths close to the nucleus - others in paths varying distance from the nucleus.
Electron
Primary Winding
Armature
Potential Difference
50. Iron and certain alloys of iron which are magnetized by artificial means.
Parallel Circuit
Artificial Magnet
Kilowatt Hour
Conductor