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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. Meter used to measure resistance in an electrical circuit.
Ohmmeter
Micro Volt
Volt
Residual Magnetism
2. The complete path through which the lines of force travel - leaving the north pole and re- entering the south pole.
Magnetic Circuit
Rotor
Ampere
Electric Generator
3. A short circuit between two energized conductors and/or an energized conductor and a grounded phase. Very high current flow.
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4. A resistor designed so that its resistance is readily adjusted.
Primary Winding
Non - Magnetic Material
Rheostat
Transformer
5. The electrodes of a cell shaped as plates to expose a surface as possible to the electrolyte.
Storage Battery
Series Circuit
Plates
Valance Electron
6. 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.
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7. A cell which is composed of certain materials which are used up during the process of delivering electric current.
Magnetic Material
Primary Cell
Electromagnet
Alternating Current
8. The dissimilar metals which are placed in an electrolyte to form a cell.
Electrode
Artificial Magnet
Wattmeter
Molecule
9. One millionth of an ampere.
Micro Ampere
Current
Factors Governing Resistance
Step-Up Transformer
10. A rate of movement of electrons through a conductor.
Current
Alternating Current
Kilowatt Hour
Series Circuit
11. 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.
Potential Difference
Primary Winding
Voltage Drop
Parallel Circuit
12. The condition where the free electrons are caused to move in the same direction along or through a conductor.
Electron Flow
Valance Electron
Transformer
Kilowatt Hour
13. 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.
Power
Non - Magnetic Material
Horsepower
Step- Down Transformer
14. The magnetism which a material retains after the magnetic force which magnetized it has been removed.
Series Circuit
Free Electrons
Armature
Residual Magnetism
15. One millionth of an ohm.
Transformer
Resistor
Factors Governing Resistance
Micro Ohm
16. The liquid solution (sometime a paste) in which the electrodes are placed.
Electrolyte
Electrical Circuit
Series Circuit
Voltage Drop
17. An instrument for measuring electrical power. Most common use: The meter of your house to measure electrical consumption.
Magnetic Poles
Molecule
Wattmeter
Volt
18. Transformer coil connected to the load. (Output side of a transformer regardless of voltage).
Impedance
Parallel Circuit
Alternating Current
Secondary Winding
19. 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)
Ohm's Law
Step-Up Transformer
Electro- Motive Force
Magnetic Pole
20. A unit of power.
Watt
Storage Battery
Short Circuit
Kilowatt Hour
21. Those electrons in orbit nearest the nucleus - not easily dislodged from their normal orbits.
Bound Electrons
Ohm
Secondary Winding
Primary Cell
22. A circuit with two or more paths for the current to take.
Electron
Millivolt
Primary Cell
Parallel Circuit
23. Smallest part a substance can physically divided into composed of 2 or more atoms.
Frequency
Secondary Cell
Condenser
Molecule
24. Single POSITIVE electrical charge - located in the middle of an atom.
Millivolt
Proton
Factors Governing Resistance
Alternator
25. 1.Material itself (Atomic Structure - Good conductor or Bad) 2.Length of the conductor 3.Cross - sectional area (Size) 4.Temperature
Factors Governing Resistance
Primary Winding
Volt
Magnetic Circuit
26. 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.
Micro Ampere
Potential Difference
Circuit
Magnetic Lines of Force
27. One- thousandth of volt.
Alternating Current
Millivolt
Micro Ampere
Magnetic Lines of Force
28. (EMF) The force created by an electric generator (or by other means) which causes current to flow. (Same as Voltage - Volts - Electric Potential - Pressure).
Short Circuit
Electro- Motive Force
Alternating Current
Impedance
29. Positive charge of electricity. Located in the nucleus of the atom.
Millivolt
Proton
Magnetic Lines of Force
Conductor
30. Lines representing the direction of the magnetic force in a magnetic field.
Voltage Drop
Electro- Motive Force
Kilowatt
Magnetic Lines of Force
31. A current limiting device designed to melt and break the circuit when a specified current is exceeded. (The weakest point in a circuit)
Fuse
Electromagnetic Induction
Series Circuit
Proton
32. A certain force exhibited by some materials which give them the ability to attract other materials. Principally iron or its alloys.
Magnetism
Electron
Lagging Current
Micro Ampere
33. Occurs when a stream of electrons are caused to move through a conductor.
Artificial Magnet
Magnetic Field
Amp Meter
Current
34. The unit of resistance. It is the resistance through which a voltage of 1 volt will produce a current of 1 ampere.
Shells
Rheostat
Volt
Ohm
35. Iron and certain alloys of iron which are magnetized by artificial means.
Voltmeter
Secondary Winding
Artificial Magnet
Frequency
36. A circuit with only one path for current to flow. There are no branches.
Series Circuit
Alternator
Micro Volt
Positive Plate
37. A circuit carrying three alternating currents whose cycles begin one after another. 120 electrical degrees apart.
Impedance
Three -Phase Circuit
Voltmeter
Kilowatt
38. Certain quantity of electrons. The unit of measure that specifies the rate at which electric current flows per second.
Coulomb
Nucleus
Ohm's Law
Impedance
39. A circuit in which there is resistance (load) connected both in series and parallel.
Secondary Cell
Permanent Magnet
Electron
Series - Parallel Circuit
40. The space around a magnet in which the magnetic force is felt.
Short Circuit
Magnetic Field
Electron
Ohm
41. 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.
Leading Current
Series Circuit
Current
Kilowatt Hour
42. A measuring device.
Magnetic Circuit
Meter
Series - Parallel Circuit
Resistance
43. Shows relationship between Current - Voltage - Wattage and Resistance.
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44. Rate of electrons flow (current flow). When one 'Coulomb' of electrons pass a given point in one second.
Molecule
'Crose Phase'
Ampere
Magnetic Field
45. A complete path provided for the flow of electrons. Consists of a source - with a closed conducting path leading from the source and back to the source
Electrical Circuit
Cycle
Horsepower
Voltmeter
46. The center portion of an atom which has a positive electrical charge.
Rheostat
Ohm
Nucleus
Amp Meter
47. The rotating member of an electrical machine.
Millivolt
Electron
Rotor
Voltmeter
48. Opposition to current flow
Ohm's Law
Ohm's Law
Resistance
Electric Generator
49. One millionth of a volt.
Magnetic Field
Micro Volt
Electromagnetic Induction
Voltage Drop
50. A generator that produces alternating current.
Alternator
Ohm's Law
Voltage Drop
Electro- Motive Force