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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. One- thousandth of a ampere
Horsepower
Leading Current
Milliampere
Electric Generator
2. A short circuit between two energized conductors and/or an energized conductor and a grounded phase. Very high current flow.
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3. Coil connected to the source of power on a transformer.
Free Electrons
Primary Winding
Positive Plate
Magnetic Material
4. Total and complete opposition to the flow of electrons
Non - Magnetic Material
Impedance
Shells
Electron
5. A unit of work or ENERGY. 1 kilowatt hour = 1 -000 watt hours
Kilowatt Hour
Milliampere
Series - Parallel Circuit
Ohm's Law
6. A material which can be magnetized - principally iron.
Magnetic Material
Potential Difference
Shells
Current
7. The property of a material that opposes the flow of current.
Electric Generator
Residual Magnetism
Resistance
'Crose Phase'
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.
Lagging Current
Ohm
Power
Atom
9. A current which reverses in direction at regularly recurring intervals - the total flow in one direction being equal to that in the other direction.
Kilowatt
Alternating Current
Ohm
Meter
10. Any of the spaces occupied by the orbits of a group of electrons of approximately equal energy surronding the nucleus of an atom.
Magnetic Poles
Shells
Secondary Winding
Lines of Force
11. The voltage dissipation between any two points in a circuit. The voltage 'dropped' or 'dissipated' in forcing current through a resistance.
Circuit
Primary Winding
Voltage Drop
Volt
12. The area surrounding a magnet in which magnetic properties are exhibited
Alternator
Bound Electrons
Magnetic Field
Positive Plate
13. A circuit carrying three alternating currents whose cycles begin one after another. 120 electrical degrees apart.
Horsepower
Alternating Current
Bimetallic Strip
Three -Phase Circuit
14. Opposition to current flow
Natural Magnet
Proton
Resistance
Micro Ohm
15. A measuring device.
Impedance
Meter
Fuse
Rotor
16. A machine which utilizes magnetism to produce an EMF and consequently - an electric circuit.
Proton
Primary Cell
Electric Generator
Primary Winding
17. 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.
Mega Ohm
Horsepower
Watt
Circuit
18. 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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19. Invisible lines along which magnetic energy travels from one pole of a magnet to the other.
Magnetic Circuit
Lines of Force
Molecule
Condenser
20. One millionth of an ohm.
Micro Ohm
Resistance
Free Electrons
Electrical Circuit
21. A circuit with two or more paths for the current to take.
Ampere
Parallel Circuit
Static Electrical Charge
Leading Current
22. A material with few free electrons. A structure or material used to prevent the passage of current.
Insulator
Transformer
Molecule
Electrolyte
23. Lines representing the direction of the magnetic force in a magnetic field.
Magnetic Material
Magnetic Lines of Force
Electrolyte
Current
24. Single NEGATIVE electrical charge. Orbits around the nucleus some in paths close to the nucleus - others in paths varying distance from the nucleus.
Plates
Magnetic Field
Electron
Impedance
25. Meter used to measure resistance in an electrical circuit.
Artificial Magnet
Magnetism
Resistor
Ohmmeter
26. The condition where the free electrons are caused to move in the same direction along or through a conductor.
Electromagnetic Induction
Bound Electrons
Electron Flow
Alternating Current
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.
Electromagnet
Current
Frequency
Secondary Winding
28. Rate of electrons flow (current flow). When one 'Coulomb' of electrons pass a given point in one second.
Valance Electron
Short Circuit
Lines of Force
Ampere
29. A device used to change the voltage of an alternating current circuit.
Transformer
Alternator
Three -Phase Circuit
Electron
30. One millionth of an ampere.
Short Circuit
Millivolt
Micro Ampere
Non - Magnetic Material
31. A circuit in which there is resistance (load) connected both in series and parallel.
Series - Parallel Circuit
Magnetic Lines of Force
Coulomb
Electron
32. A material that has many free electrons thus allowing electric current to flow through it easily.
Volt
Conductor
Permeability
Alternator
33. A unit of POWER. 1 kilowatt = 1 -000 watts
Kilowatt
Parallel Circuit
Atom
Non - Magnetic Material
34. One- thousandth of volt.
Parallel Circuit
Primary Cell
Millivolt
Lines of Force
35. An alternating current which current cycle begins later that its voltage cycle.
Electron Flow
Electrode
Lagging Current
Kilowatt
36. The magnetism which a material retains after the magnetic force which magnetized it has been removed.
Coulomb
Residual Magnetism
Shells
'Crose Phase'
37. The electrodes of a cell shaped as plates to expose a surface as possible to the electrolyte.
Rotor
Shells
Plates
Electromagnet
38. A circuit with more than one path. Current branches to flow in every available path.
Parallel Circuit
Electromagnet
Permanent Magnet
Magnetic Lines of Force
39. A unit of power.
Watt
Positive Plate
Lines of Force
Horsepower
40. A resistor designed so that its resistance is readily adjusted.
Storage Battery
Rheostat
Amp Meter
Electro- Motive Force
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.
Positive Plate
Secondary Cell
Alternating Current
Three -Phase Circuit
42. Hardened steel which has been magnetized artificially and which retains its magnetic properties
Frequency
Permanent Magnet
Resistor
Rotor
43. 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)
Electron Flow
Magnetic Pole
Ohmmeter
Rheostat
44. The unit of Electro- Motive Force
Primary Winding
Volt
Short Circuit
Shells
45. A generator that produces alternating current.
Magnetic Material
Horsepower
Alternator
Mega Ohm
46. The opposite ends of a magnet where the magnetism is concentrated. Each magnet has two poles - designated as north and south.
Step- Down Transformer
Resistor
Magnetic Poles
Mega Ohm
47. That property of a material which determines how readily it conducts magnetic lines of flux. Opposite magnetic quality or conductivity.
Micro Ohm
Permeability
Parallel Circuit
Mega Ohm
48. One million ohms.
Mega Ohm
Horsepower
Alternator
Primary Winding
49. 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.
Primary Cell
Proton
Potential Difference
Magnetic Lines of Force
50. 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.
Ohm's Law
Electrolyte
Series Circuit
Millivolt