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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. 1.Material itself (Atomic Structure - Good conductor or Bad) 2.Length of the conductor 3.Cross - sectional area (Size) 4.Temperature
Factors Governing Resistance
Secondary Winding
Electrode
Resistance
2. Hardened steel which has been magnetized artificially and which retains its magnetic properties
Permanent Magnet
Rheostat
Mega Ohm
Magnetic Lines of Force
3. 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.
Series Circuit
Potential Difference
Short Circuit
Conductor
4. A resistor designed so that its resistance is readily adjusted.
Impedance
'Crose Phase'
Mega Ohm
Rheostat
5. A measuring device.
Leading Current
Voltage Drop
Amp Meter
Meter
6. The liquid solution (sometime a paste) in which the electrodes are placed.
Electrode
Bimetallic Strip
Magnetic Circuit
Electrolyte
7. A unit of power; equal to 550 foot- pounds per second of approximately 746 watts.
Horsepower
Electrode
Coulomb
Power
8. One millionth of an ampere.
Parallel Circuit
Molecule
Micro Ampere
Bimetallic Strip
9. Positive charge of electricity. Located in the nucleus of the atom.
Voltage Drop
Primary Cell
Proton
Ohm's Law
10. One- thousandth of a ampere
Watt
Milliampere
Kilowatt
Step-Up Transformer
11. The opposite ends of a magnet where the magnetism is concentrated. Each magnet has two poles - designated as north and south.
Armature
Electro- Motive Force
Magnetic Poles
Magnetic Pole
12. A circuit in which there is resistance (load) connected both in series and parallel.
Valance Electron
Electrolyte
Natural Magnet
Series - Parallel Circuit
13. 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.
Electrical Circuit
Magnetic Material
Voltage Drop
Primary Cell
14. The unit of resistance. It is the resistance through which a voltage of 1 volt will produce a current of 1 ampere.
Transformer
Ohm
Magnetic Circuit
Electrode
15. 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
Alternating Current
Coulomb
Current
16. The moving part of a dynamo or motor consisting of coils of wire around an iron core.
Fuse
Plates
Armature
Lagging Current
17. Coil connected to the source of power on a transformer.
Series Circuit
Magnetic Circuit
Factors Governing Resistance
Primary Winding
18. One millionth of an ohm.
Micro Ohm
Nucleus
Proton
Resistance
19. Any device which may be placed in the circuit and which offers opposition to the flow of electrons around the circuit.
Circuit
Magnetic Pole
Series Circuit
Resistor
20. Certain quantity of electrons. The unit of measure that specifies the rate at which electric current flows per second.
Coulomb
Horsepower
Non - Magnetic Material
Parallel Circuit
21. An instrument for measuring electromotive force in volts. It must be connected across the load that causes the votage drop.
Rheostat
Volt
Magnetism
Voltmeter
22. 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)
Molecule
Magnetic Pole
Three -Phase Circuit
Impedance
23. A material that has many free electrons thus allowing electric current to flow through it easily.
Magnetic Field
Armature
Conductor
Bound Electrons
24. 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.
Artificial Magnet
Power
Conductor
Resistance
25. A rate of movement of electrons through a conductor.
Three -Phase Circuit
Current
Short Circuit
Horsepower
26. A transformer designed to raise the voltage of an alternating current. Most common use; In a generating plant to raise the voltage.
Step-Up Transformer
Valance Electron
Circuit
Rheostat
27. The complete path through which the lines of force travel - leaving the north pole and re- entering the south pole.
Micro Volt
Lagging Current
Rheostat
Magnetic Circuit
28. Single POSITIVE electrical charge - located in the middle of an atom.
Series Circuit
Magnetic Material
Proton
Electrical Circuit
29. A unit of POWER. 1 kilowatt = 1 -000 watts
Non - Magnetic Material
Electron
Kilowatt
Magnetic Material
30. In a battery - the electrode which takes up the electrons returning from the external circuit.
Fuse
Magnetic Field
Secondary Cell
Positive Plate
31. A material with few free electrons. A structure or material used to prevent the passage of current.
Watt
Residual Magnetism
Volt
Insulator
32. The number of cycles per second. Example: 60 cycles per second alternating current.
Frequency
Watt
Series Circuit
Magnetism
33. One- thousandth of volt.
Millivolt
Electron
Cycle
Electrical Circuit
34. (EMF) The force created by an electric generator (or by other means) which causes current to flow. (Same as Voltage - Volts - Electric Potential - Pressure).
Wattmeter
Watt
Electro- Motive Force
Impedance
35. A transformer designed to lower voltage of an alternating current. Most common type of transformer used on a power system.
Residual Magnetism
Molecule
Secondary Cell
Step- Down Transformer
36. A device used to change the voltage of an alternating current circuit.
Electrode
Rheostat
Transformer
Circuit
37. One million ohms.
Condenser
Ohm
Primary Winding
Mega Ohm
38. Total and complete opposition to the flow of electrons
Electromagnetic Induction
Impedance
Plates
Current
39. An instrument for measuring electric current
Fuse
Voltage Drop
Ohm
Amp Meter
40. The process of producing an electromotive force in a conductor as a result of the cutting of magnetic lines of force by a conductor.
Potential Difference
Electromagnetic Induction
Rotor
Ampere
41. 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
Three -Phase Circuit
Parallel Circuit
Primary Winding
42. Occurs when a stream of electrons are caused to move through a conductor.
Volt
Current
Electromagnetic Induction
Condenser
43. The rotating member of an electrical machine.
Magnetic Field
Parallel Circuit
Series Circuit
Rotor
44. 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.
Artificial Magnet
Permeability
Series Circuit
Electro- Motive Force
45. A circuit with only one path for current to flow. There are no branches.
Series Circuit
Frequency
Condenser
Bound Electrons
46. The area surrounding a magnet in which magnetic properties are exhibited
Secondary Winding
Resistance
Magnetic Field
Molecule
47. A certain force exhibited by some materials which give them the ability to attract other materials. Principally iron or its alloys.
Bound Electrons
Magnetism
Series Circuit
Cycle
48. That property of a material which determines how readily it conducts magnetic lines of flux. Opposite magnetic quality or conductivity.
Alternating Current
Magnetic Pole
Permeability
Secondary Winding
49. An alternating current which current cycle begins earlier than its voltage cycle.
Leading Current
Insulator
Permeability
Factors Governing Resistance
50. Negative charge of electricity
Horsepower
Electron
Coulomb
Ohmmeter