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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. Rate of electrons flow (current flow). When one 'Coulomb' of electrons pass a given point in one second.
Ampere
Current
Storage Battery
Series Circuit
2. Iron and certain alloys of iron which are magnetized by artificial means.
Artificial Magnet
Permeability
Step-Up Transformer
Electro- Motive Force
3. A current limiting device designed to melt and break the circuit when a specified current is exceeded. (The weakest point in a circuit)
Permeability
Natural Magnet
Voltage Drop
Fuse
4. A unit of power.
Non - Magnetic Material
Step-Up Transformer
Secondary Winding
Watt
5. 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
Electric Generator
Voltage Drop
Conductor
6. A circuit in which there is resistance (load) connected both in series and parallel.
Primary Cell
Current
Positive Plate
Series - Parallel Circuit
7. That property of a material which determines how readily it conducts magnetic lines of flux. Opposite magnetic quality or conductivity.
Electron
Impedance
Condenser
Permeability
8. One millionth of an ohm.
Current
Micro Ohm
Factors Governing Resistance
'Crose Phase'
9. A cell which is composed of certain materials which are used up during the process of delivering electric current.
Wattmeter
Conductor
Free Electrons
Primary Cell
10. A transformer designed to lower voltage of an alternating current. Most common type of transformer used on a power system.
Step- Down Transformer
Resistor
Resistance
Current
11. Single POSITIVE electrical charge - located in the middle of an atom.
Proton
Voltage Drop
Factors Governing Resistance
Electrical Circuit
12. The number of cycles per second. Example: 60 cycles per second alternating current.
Leading Current
Micro Ohm
Frequency
Electro- Motive Force
13. Transformer coil connected to the load. (Output side of a transformer regardless of voltage).
Shells
Magnetic Circuit
Secondary Winding
Bimetallic Strip
14. Lines representing the direction of the magnetic force in a magnetic field.
Coulomb
Magnetic Lines of Force
Magnetic Field
Milliampere
15. A circuit with more than one path. Current branches to flow in every available path.
Secondary Winding
Parallel Circuit
Electric Generator
Resistor
16. 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.
Permanent Magnet
Power
Short Circuit
Free Electrons
17. An alternating current which current cycle begins earlier than its voltage cycle.
Ohmmeter
Leading Current
Voltage Drop
Volt
18. In a battery - the electrode which takes up the electrons returning from the external circuit.
Magnetic Field
Valance Electron
Power
Positive Plate
19. Positive charge of electricity. Located in the nucleus of the atom.
Ohmmeter
Positive Plate
Ohm's Law
Proton
20. Negative charge of electricity
Step-Up Transformer
Proton
Watt
Electron
21. Smallest part a substance can physically divided into composed of 2 or more atoms.
Three -Phase Circuit
Alternating Current
Electrolyte
Molecule
22. Those electrons in orbits farthest out from the nucleus - loosely bound and migrate from one atom to another.
Series Circuit
Natural Magnet
Free Electrons
Ohmmeter
23. Fundamental constituents of matter. The 'elements' (tiny particles) which come together in various combinations to form molecules of many substances.
Resistor
Condenser
Atom
Leading Current
24. A complete sequence of events - as an alternating- current cycle.
Ohm's Law
Molecule
Milliampere
Cycle
25. A current which reverses in direction at regularly recurring intervals - the total flow in one direction being equal to that in the other direction.
Magnetic Material
Alternating Current
Magnetic Lines of Force
Resistor
26. 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.
27. One- thousandth of a ampere
Millivolt
Armature
Milliampere
Ampere
28. A circuit with only one path for current to flow. There are no branches.
Short Circuit
Magnetic Field
Voltmeter
Series Circuit
29. One millionth of an ampere.
Micro Ampere
Factors Governing Resistance
Milliampere
Bound Electrons
30. The complete path through which the lines of force travel - leaving the north pole and re- entering the south pole.
Resistor
Meter
Electrolyte
Magnetic Circuit
31. The dissimilar metals which are placed in an electrolyte to form a cell.
Kilowatt
Bound Electrons
Electrode
Conductor
32. Total and complete opposition to the flow of electrons
Shells
Secondary Winding
Impedance
Proton
33. Any of the spaces occupied by the orbits of a group of electrons of approximately equal energy surronding the nucleus of an atom.
Magnetism
Impedance
Shells
Factors governing the Value of EMF of a Generator
34. A device used to change the voltage of an alternating current circuit.
Ohm's Law
Permanent Magnet
Transformer
Frequency
35. A circuit with two or more paths for the current to take.
Parallel Circuit
Non - Magnetic Material
Series Circuit
Current
36. The liquid solution (sometime a paste) in which the electrodes are placed.
Magnetic Field
Electron
Electrolyte
Resistor
37. The rotating member of an electrical machine.
Rotor
Ohm's Law
Electrolyte
Insulator
38. 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.
Coulomb
Valance Electron
Current
Parallel Circuit
39. A device which capacity is its chief electrical property; a device for storing or holding an electric charge; a capacitor.
Milliampere
Volt
Condenser
Circuit
40. 1.Speed of conductors cutting lines of force 2.Strength of the magnetic field 3.Length of conductors cutting through the field
Factors governing the Value of EMF of a Generator
Storage Battery
Series Circuit
Secondary Cell
41. The magnetism which a material retains after the magnetic force which magnetized it has been removed.
Current
Volt
Residual Magnetism
Current
42. A certain force exhibited by some materials which give them the ability to attract other materials. Principally iron or its alloys.
Magnetism
Electromagnetic Induction
Artificial Magnet
Voltage Drop
43. Certain quantity of electrons. The unit of measure that specifies the rate at which electric current flows per second.
Artificial Magnet
Series Circuit
Coulomb
Micro Volt
44. A material that has many free electrons thus allowing electric current to flow through it easily.
Series Circuit
Conductor
Magnetic Field
Micro Volt
45. The condition where the free electrons are caused to move in the same direction along or through a conductor.
Electron Flow
Lines of Force
Micro Volt
Current
46. The property of a material that opposes the flow of current.
Resistance
Millivolt
Wattmeter
Kilowatt
47. The unit of Electro- Motive Force
Volt
Millivolt
Primary Cell
Electrode
48. An instrument for measuring electric current
Ampere
Proton
Artificial Magnet
Amp Meter
49. A measuring device.
Potential Difference
Electric Generator
Proton
Meter
50. Shows relationship between Current - Voltage - Wattage and Resistance.