Basic Concepts
Electric Motors/Controls
Terminology
AC and Power
Garbage Can
100
Voltage
What is the easiest and most common electrical measurement to make? Or What is a potential difference expressed in volts?
100
an induction motor
What is a motor that has no electric connection between the power sources and the rotor, but the rotor has conductors which carry current is called
100
Energy
What is a force moving through a distance being defined as?
100
1000 Watt-hours
What is 1 killowatt-hour?
100
A conductors resistance is .005 ohms, but this can also be expressed as
What is 5 X 10^-3Ω
200
Joule
What is the base unit of energy?
200
Slow-blow fuse
What is should be used whenever short-duration surge currents are expected?
200
Bass units
What is a term used to indicate the amount of something are?
200
With 6 cents per kWh the total cost is $6.00.
What is 100 kWh of energy?
200
Hydrometer
How specific gravity is measured?
300
I= V / R
What is Ohm's Law
300
Magnetomotive Force
What is the force that creates flux?
300
Farad
What is the base unit of capacitance?
300
Reluctance
What is opposition to magnetic flux?
300
100Ω total resistance in parallel with equal resistors.
What is 2 200-Ω resistors?
400
Hertz
What is the base unit of Frequency?
400
Fully Loaded
When maximum efficiency is obtained from a transformer?
400
Reactance
What is an opposition to current caused by capacitors and inductors?
400
Sine wave
What is the most common type of ac waveform.
400
current leads voltage by 90 degrees relationship
What is the phase relationship in a capacitive ac circuit
500
Semiconductor
What is material used in such devices as transistors, ICs, and solar cells?
500
Frame Number
How a motors physical size of a motor is indicated?
500
Power Factor
What is the ratio of the true power to the apparent power in a circuit?
500
120 electrical degrees
What is each phase of three-phase current is displaced from the other two?
500
Energizing Circuit of transformer
What is the current in the primary of an unloaded transformer is called the
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