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New Hire power Test

A light bulb is an example of a linear load
True
False
A non-linear load draws current at a steady constant rate.
True
False
According to NEC, what percentage of rated current is allowed to be drawn from a receptacle?
70%
80%
90%
100%
Apparent Power is the maximum power that can be drawn by the load. While watts is the "real power" that is being drawn and can be used.
True
False
Brownouts have been commonly used to describe under voltages.
True
False
Choose which of the following is not a valid category of power distribution:
Single Phase
Two Phase
Three Phase
Device that is used to step up or step down voltage:
Grounding rod
Transformer
Voltage stepper
Multimeter
Frequency is best described as ________________.
A fluctuation in attractive force between two moving objects.
The number of complete cycles a sine wave oscillates per second.
Between 78 โ€“ 92 Hz in the United States.
A unit of measure in the radio industry
Many of the mysteries of equipment failure, downtime, software and data corruption, are the result of a problematic supply of power
True
False
Power Factor = Watts / VoltAmps
True
False
Power factor can never be larger than 1.
True
False
Power is typically measured in
Volts
Watts
Amps
Ohms
The nature of AC power is that it has _________________.
Current that flows in one direction only
Current that flows in one direction and then the opposite
Current that is inversely proportional to the voltage
Current only when the load is linear
There should only be one ground in an electrical system
True
False
What are the 7 types of Power problems are classified by their unique _________
Wave shape
Voltage range
Distortion Levels
Frequency range
What is current?
The measure of resistance between two stationary bodies
The flow of neutrons between atoms
The flow of electrons
The charge differential between protons and electrons in an atom.
What is resistance?
The difference in electrical charge between two points.
A fluctuation in attractive force between two moving objects
A certain hindrance or opposition to the passage of an electrical current
The charge differential between protons and electrons in an atom
What is Voltage?
The difference in electrical charge between two points.
The pressure exerted upon an atom by its electron/s
Electric current equal to 1 coulomb per second.
A dynamic physical state under normal temperature and pressure.
Which of the following power problems is a reduction of AC voltage at a given frequency for the duration of .5 cycles to 1 minute?
Over voltage
Sag
Swell
Transient
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