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Test your basic knowledge |
Basic Electricity Vocab
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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. Occurs when a stream of electrons are caused to move through a conductor.
Resistor
Magnetic Lines of Force
Molecule
Current
2. A current which reverses in direction at regularly recurring intervals - the total flow in one direction being equal to that in the other direction.
Artificial Magnet
Condenser
Voltage Drop
Alternating Current
3. A measuring device.
Millivolt
Meter
Electron Flow
Electron
4. 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.
Series Circuit
Leading Current
Circuit
Parallel Circuit
5. 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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6. 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.
Watt
Mega Ohm
Micro Ampere
Series Circuit
7. A circuit with two or more paths for the current to take.
Natural Magnet
Ohm
Micro Ampere
Parallel Circuit
8. Opposition to current flow
Micro Ampere
Ohmmeter
Series - Parallel Circuit
Resistance
9. Total and complete opposition to the flow of electrons
Impedance
Leading Current
Storage Battery
Non - Magnetic Material
10. (EMF) The force created by an electric generator (or by other means) which causes current to flow. (Same as Voltage - Volts - Electric Potential - Pressure).
Artificial Magnet
Electro- Motive Force
Fuse
Plates
11. Several secondary cells connected together for either a greater voltage or current output.
Non - Magnetic Material
Parallel Circuit
Series Circuit
Storage Battery
12. Negative charge of electricity
Electron
Plates
Impedance
Alternator
13. 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.
Bimetallic Strip
Kilowatt Hour
Parallel Circuit
Proton
14. The liquid solution (sometime a paste) in which the electrodes are placed.
Ampere
Electrolyte
Electron
Bound Electrons
15. Single POSITIVE electrical charge - located in the middle of an atom.
Proton
Non - Magnetic Material
Series Circuit
Permanent Magnet
16. An alternating current which current cycle begins later that its voltage cycle.
Lagging Current
Shells
Frequency
Insulator
17. A very low resistance path placed in a circuit in such a manner as to allow an excessive current flow.
Electron
Short Circuit
Factors governing the Value of EMF of a Generator
Current
18. The complete path through which the lines of force travel - leaving the north pole and re- entering the south pole.
Permanent Magnet
Parallel Circuit
Proton
Magnetic Circuit
19. 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.
Secondary Winding
Positive Plate
Volt
Watt
20. A circuit with more than one path. Current branches to flow in every available path.
Parallel Circuit
Millivolt
Alternating Current
Shells
21. Hardened steel which has been magnetized artificially and which retains its magnetic properties
Step-Up Transformer
Rotor
Permanent Magnet
Insulator
22. 1.Material itself (Atomic Structure - Good conductor or Bad) 2.Length of the conductor 3.Cross - sectional area (Size) 4.Temperature
Positive Plate
Electron Flow
Transformer
Factors Governing Resistance
23. A generator that produces alternating current.
Alternator
Electron
Electron Flow
Permanent Magnet
24. The magnetism which a material retains after the magnetic force which magnetized it has been removed.
Parallel Circuit
Proton
Magnetic Field
Residual Magnetism
25. The unit of resistance. It is the resistance through which a voltage of 1 volt will produce a current of 1 ampere.
Conductor
Ohm
Plates
Resistance
26. That property of a material which determines how readily it conducts magnetic lines of flux. Opposite magnetic quality or conductivity.
Horsepower
Magnetic Lines of Force
Permeability
Secondary Winding
27. Fundamental constituents of matter. The 'elements' (tiny particles) which come together in various combinations to form molecules of many substances.
Series - Parallel Circuit
Wattmeter
Atom
Magnetism
28. A material which CANNOT be magnetized. Example: Wood - Glass - Brass - Rubber...
Resistance
Magnetism
Non - Magnetic Material
Static Electrical Charge
29. 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
Micro Ampere
Power
Series Circuit
30. One millionth of an ohm.
Factors Governing Resistance
Armature
Micro Ohm
Kilowatt Hour
31. Rate of electrons flow (current flow). When one 'Coulomb' of electrons pass a given point in one second.
Magnetic Circuit
Ampere
Nucleus
Wattmeter
32. One millionth of an ampere.
Micro Ohm
Leading Current
Micro Ampere
Magnetic Lines of Force
33. A cell which is composed of certain materials which are used up during the process of delivering electric current.
Alternator
Ohmmeter
Permanent Magnet
Primary Cell
34. 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.
Voltage Drop
Electron Flow
Three -Phase Circuit
Circuit
35. One million ohms.
Factors governing the Value of EMF of a Generator
Mega Ohm
Milliampere
Millivolt
36. A rate of movement of electrons through a conductor.
Power
Current
Resistance
Proton
37. A short circuit between two energized conductors and/or an energized conductor and a grounded phase. Very high current flow.
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38. Those electrons in orbit nearest the nucleus - not easily dislodged from their normal orbits.
Bound Electrons
Voltmeter
Magnetic Field
Magnetism
39. An alternating current which current cycle begins earlier than its voltage cycle.
Resistor
Kilowatt Hour
Rotor
Leading Current
40. Lines representing the direction of the magnetic force in a magnetic field.
Static Electrical Charge
Condenser
Non - Magnetic Material
Magnetic Lines of Force
41. A material that has many free electrons thus allowing electric current to flow through it easily.
Proton
Fuse
Micro Ampere
Conductor
42. A certain force exhibited by some materials which give them the ability to attract other materials. Principally iron or its alloys.
Magnetic Field
Electron Flow
Magnetism
Resistor
43. The property of a material that opposes the flow of current.
Resistance
Electron Flow
Rheostat
Factors governing the Value of EMF of a Generator
44. The area surrounding a magnet in which magnetic properties are exhibited
Magnetic Field
Watt
Resistance
Three -Phase Circuit
45. A complete sequence of events - as an alternating- current cycle.
Magnetic Field
Cycle
Voltmeter
Electrolyte
46. Certain quantity of electrons. The unit of measure that specifies the rate at which electric current flows per second.
Non - Magnetic Material
Coulomb
Factors governing the Value of EMF of a Generator
Condenser
47. Coil connected to the source of power on a transformer.
Primary Winding
Permeability
Storage Battery
Potential Difference
48. 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)
Transformer
Magnetic Pole
Magnetic Material
Resistance
49. The moving part of a dynamo or motor consisting of coils of wire around an iron core.
Armature
Electro- Motive Force
Permanent Magnet
Millivolt
50. The space around a magnet in which the magnetic force is felt.
Micro Ampere
Magnetic Field
Millivolt
Primary Winding