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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).
Secondary Winding
Micro Ampere
Series Circuit
Alternating Current
2. 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 Ampere
Bound Electrons
Primary Winding
Series Circuit
3. The opposite ends of a magnet where the magnetism is concentrated. Each magnet has two poles - designated as north and south.
Series Circuit
Volt
Magnetic Poles
Fuse
4. Meter used to measure resistance in an electrical circuit.
Magnetic Material
Impedance
Primary Cell
Ohmmeter
5. 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 Ohm
Alternator
Circuit
Bound Electrons
6. The property of a material that opposes the flow of current.
Voltage Drop
Storage Battery
Resistance
Conductor
7. Occurs when a stream of electrons are caused to move through a conductor.
Series Circuit
Step- Down Transformer
Current
Electrode
8. The dissimilar metals which are placed in an electrolyte to form a cell.
Ampere
Electrode
Ohm
Free Electrons
9. A transformer designed to lower voltage of an alternating current. Most common type of transformer used on a power system.
Valance Electron
Leading Current
Step- Down Transformer
Series Circuit
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).
Alternating Current
Electron
Electro- Motive Force
Positive Plate
11. 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.
Parallel Circuit
Voltage Drop
Volt
Secondary Cell
12. One- thousandth of a ampere
Milliampere
Electric Generator
Electromagnetic Induction
Magnetic Material
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. Electric charges at rest. Caused by friction of materials - where a surplus of electrons exists and may be discharged.
Step-Up Transformer
Static Electrical Charge
Electrical Circuit
Ampere
15. A circuit with only one path for current to flow. There are no branches.
Bimetallic Strip
Electron
Series Circuit
Shells
16. 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.
Coulomb
Electromagnet
Voltage Drop
Series Circuit
17. Fundamental constituents of matter. The 'elements' (tiny particles) which come together in various combinations to form molecules of many substances.
Proton
Frequency
Atom
Step-Up Transformer
18. Hardened steel which has been magnetized artificially and which retains its magnetic properties
Permanent Magnet
Artificial Magnet
Shells
Ampere
19. A unit of POWER. 1 kilowatt = 1 -000 watts
Electro- Motive Force
Electromagnetic Induction
Kilowatt
Resistance
20. That property of a material which determines how readily it conducts magnetic lines of flux. Opposite magnetic quality or conductivity.
Magnetic Field
Permeability
Milliampere
Leading Current
21. 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
Ohm
Electrical Circuit
Resistor
Series - Parallel Circuit
22. Lines representing the direction of the magnetic force in a magnetic field.
Magnetic Lines of Force
Transformer
Proton
Valance Electron
23. A device which capacity is its chief electrical property; a device for storing or holding an electric charge; a capacitor.
Watt
Voltmeter
Wattmeter
Condenser
24. The space around a magnet in which the magnetic force is felt.
Resistor
Parallel Circuit
Magnetic Field
Magnetism
25. The center portion of an atom which has a positive electrical charge.
Parallel Circuit
Nucleus
Static Electrical Charge
Magnetic Field
26. A unit of work or ENERGY. 1 kilowatt hour = 1 -000 watt hours
Electrical Circuit
Kilowatt
Kilowatt Hour
Shells
27. An instrument for measuring electrical power. Most common use: The meter of your house to measure electrical consumption.
Electrolyte
Fuse
Wattmeter
Short Circuit
28. One- thousandth of volt.
Millivolt
Series - Parallel Circuit
Electrolyte
Voltmeter
29. A material which CANNOT be magnetized. Example: Wood - Glass - Brass - Rubber...
Factors governing the Value of EMF of a Generator
Non - Magnetic Material
Potential Difference
Magnetic Circuit
30. A very low resistance path placed in a circuit in such a manner as to allow an excessive current flow.
Short Circuit
Amp Meter
Volt
Meter
31. Certain quantity of electrons. The unit of measure that specifies the rate at which electric current flows per second.
Coulomb
Resistance
Transformer
Magnetic Circuit
32. 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
Power
Bimetallic Strip
Natural Magnet
33. The unit of Electro- Motive Force
Secondary Winding
Volt
Transformer
Magnetism
34. One million ohms.
Proton
Short Circuit
Mega Ohm
Kilowatt
35. A material which can be magnetized - principally iron.
Leading Current
Magnetic Material
Valance Electron
Three -Phase Circuit
36. The rotating member of an electrical machine.
Electromagnet
Factors Governing Resistance
Rotor
Mega Ohm
37. 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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38. An instrument for measuring electromotive force in volts. It must be connected across the load that causes the votage drop.
Ampere
Voltmeter
Power
Parallel Circuit
39. The electrodes of a cell shaped as plates to expose a surface as possible to the electrolyte.
Ohm's Law
Series Circuit
Plates
Coulomb
40. 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.
Step-Up Transformer
Three -Phase Circuit
Bimetallic Strip
Alternating Current
41. A certain force exhibited by some materials which give them the ability to attract other materials. Principally iron or its alloys.
Magnetism
Ohm's Law
Primary Winding
Current
42. Rate of electrons flow (current flow). When one 'Coulomb' of electrons pass a given point in one second.
Ampere
Magnetic Circuit
Secondary Cell
Non - Magnetic Material
43. 1.Speed of conductors cutting lines of force 2.Strength of the magnetic field 3.Length of conductors cutting through the field
Impedance
Magnetic Pole
Factors governing the Value of EMF of a Generator
Millivolt
44. A machine which utilizes magnetism to produce an EMF and consequently - an electric circuit.
Lagging Current
Permeability
Electric Generator
Series Circuit
45. A cell which is rechargeable. Uses materials which change in compostition during delivery of current - but may be restored to original condition upon recharge.
Secondary Cell
Insulator
Rotor
Electromagnet
46. A current which reverses in direction at regularly recurring intervals - the total flow in one direction being equal to that in the other direction.
Secondary Winding
Electric Generator
Alternating Current
Magnetic Lines of Force
47. 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)
Proton
Cycle
Valance Electron
Magnetic Pole
48. A transformer designed to raise the voltage of an alternating current. Most common use; In a generating plant to raise the voltage.
Ohm's Law
Step-Up Transformer
Permanent Magnet
Electron Flow
49. A circuit in which there is resistance (load) connected both in series and parallel.
Frequency
Series - Parallel Circuit
Resistance
Ohm's Law
50. A circuit with more than one path. Current branches to flow in every available path.
Magnetic Circuit
Meter
Parallel Circuit
Magnetic Pole