SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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 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
Plates
Impedance
Electrical Circuit
Artificial Magnet
2. (Lode Stone) Certain type of mineral ore which has the natural Properties of a magnet.
Natural Magnet
Residual Magnetism
Nucleus
Alternator
3. An alternating current which current cycle begins earlier than its voltage cycle.
Mega Ohm
Kilowatt
Conductor
Leading Current
4. A circuit with more than one path. Current branches to flow in every available path.
Magnetism
Factors governing the Value of EMF of a Generator
Parallel Circuit
Static Electrical Charge
5. Hardened steel which has been magnetized artificially and which retains its magnetic properties
Lines of Force
Coulomb
Permanent Magnet
Cycle
6. A transformer designed to lower voltage of an alternating current. Most common type of transformer used on a power system.
Step- Down Transformer
Atom
Ohmmeter
Electric Generator
7. Total and complete opposition to the flow of electrons
Circuit
Impedance
Current
Micro Ohm
8. 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.
Watt
Micro Ampere
Secondary Winding
Power
9. A device used to change the voltage of an alternating current circuit.
Current
Transformer
Storage Battery
Meter
10. An instrument for measuring electromotive force in volts. It must be connected across the load that causes the votage drop.
Voltmeter
Volt
Electrode
Primary Winding
11. A very low resistance path placed in a circuit in such a manner as to allow an excessive current flow.
Permanent Magnet
Primary Winding
Meter
Short Circuit
12. One millionth of an ampere.
Parallel Circuit
Electromagnetic Induction
Permanent Magnet
Micro Ampere
13. 1.Speed of conductors cutting lines of force 2.Strength of the magnetic field 3.Length of conductors cutting through the field
Milliampere
Positive Plate
Factors governing the Value of EMF of a Generator
Residual Magnetism
14. One millionth of an ohm.
Primary Cell
Electromagnet
Micro Ohm
Voltage Drop
15. A certain force exhibited by some materials which give them the ability to attract other materials. Principally iron or its alloys.
Magnetism
Amp Meter
Ohm's Law
Horsepower
16. Occurs when a stream of electrons are caused to move through a conductor.
Magnetism
Milliampere
Circuit
Current
17. 1.Material itself (Atomic Structure - Good conductor or Bad) 2.Length of the conductor 3.Cross - sectional area (Size) 4.Temperature
Permanent Magnet
Voltage Drop
Factors Governing Resistance
Ohmmeter
18. Those electrons in orbit nearest the nucleus - not easily dislodged from their normal orbits.
Permeability
Current
Bound Electrons
Resistance
19. Positive charge of electricity. Located in the nucleus of the atom.
Ohmmeter
Volt
Proton
Kilowatt
20. Fundamental constituents of matter. The 'elements' (tiny particles) which come together in various combinations to form molecules of many substances.
Atom
Permeability
Electromagnetic Induction
Alternating Current
21. An alternating current which current cycle begins later that its voltage cycle.
Proton
Lagging Current
Electrical Circuit
Magnetic Field
22. Iron and certain alloys of iron which are magnetized by artificial means.
Series Circuit
Artificial Magnet
Three -Phase Circuit
Bound Electrons
23. Several secondary cells connected together for either a greater voltage or current output.
Ohm's Law
Micro Volt
Atom
Storage Battery
24. 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)
Magnetic Pole
Kilowatt Hour
Ampere
Insulator
25. A transformer designed to raise the voltage of an alternating current. Most common use; In a generating plant to raise the voltage.
Armature
Step-Up Transformer
Electro- Motive Force
Rheostat
26. The liquid solution (sometime a paste) in which the electrodes are placed.
Electrolyte
Frequency
Factors governing the Value of EMF of a Generator
Wattmeter
27. 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.
Permanent Magnet
Proton
Non - Magnetic Material
Electromagnet
28. The moving part of a dynamo or motor consisting of coils of wire around an iron core.
Meter
Non - Magnetic Material
Positive Plate
Armature
29. A circuit in which there is resistance (load) connected both in series and parallel.
Horsepower
Watt
Series - Parallel Circuit
Resistance
30. One millionth of a volt.
Horsepower
Magnetic Poles
Electromagnet
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.
Circuit
Bimetallic Strip
Magnetic Field
Factors Governing Resistance
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.
Bound Electrons
Static Electrical Charge
Volt
Potential Difference
33. A resistor designed so that its resistance is readily adjusted.
Milliampere
Factors governing the Value of EMF of a Generator
Potential Difference
Rheostat
34. An instrument for measuring electrical power. Most common use: The meter of your house to measure electrical consumption.
Rotor
Wattmeter
Micro Ampere
Resistor
35. That property of a material which determines how readily it conducts magnetic lines of flux. Opposite magnetic quality or conductivity.
Parallel Circuit
Power
Permeability
Lagging Current
36. A unit of POWER. 1 kilowatt = 1 -000 watts
Kilowatt
Electrical Circuit
Free Electrons
Electromagnetic Induction
37. The rotating member of an electrical machine.
Lagging Current
Rotor
Condenser
Watt
38. A material with few free electrons. A structure or material used to prevent the passage of current.
Cycle
Free Electrons
Insulator
Parallel Circuit
39. 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.
Alternating Current
Voltage Drop
Electron
Primary Cell
40. A rate of movement of electrons through a conductor.
Atom
Proton
Parallel Circuit
Current
41. Rate of electrons flow (current flow). When one 'Coulomb' of electrons pass a given point in one second.
Secondary Winding
Step- Down Transformer
Ampere
Current
42. A single electron or one of two or more electrons in the outer shell of an atom that is responsible for the chemical properties of an atom.
Series Circuit
Ampere
Valance Electron
Electromagnetic Induction
43. Those electrons in orbits farthest out from the nucleus - loosely bound and migrate from one atom to another.
Kilowatt Hour
Leading Current
Free Electrons
Lagging Current
44. A cell which is composed of certain materials which are used up during the process of delivering electric current.
Insulator
Primary Cell
Voltmeter
Electron
45. Negative charge of electricity
Circuit
Electric Generator
Electron
Step-Up Transformer
46. One million ohms.
Micro Ampere
Electrical Circuit
Mega Ohm
Secondary Winding
47. The complete path through which the lines of force travel - leaving the north pole and re- entering the south pole.
Static Electrical Charge
Plates
Atom
Magnetic Circuit
48. The voltage dissipation between any two points in a circuit. The voltage 'dropped' or 'dissipated' in forcing current through a resistance.
Coulomb
Electrical Circuit
Mega Ohm
Voltage Drop
49. A unit of power; equal to 550 foot- pounds per second of approximately 746 watts.
Potential Difference
Fuse
Horsepower
Positive Plate
50. The magnetism which a material retains after the magnetic force which magnetized it has been removed.
Three -Phase Circuit
Residual Magnetism
Electron
Alternating Current