ele Flashcards

1
Q

voltage is the same as _____ in plumbing

A

pressure, voltage was originally call electrical pressure

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2
Q

_______ is analogous to flow, or pipe size in plumbing

A

current

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3
Q

to run electricity over long distances we want high ______

A

voltage, but in delivery we want lower voltage to reduce danger

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4
Q

Describe Ohm’s Law

A

Power (Watts W) = Current (Amps or I) x Pressure (Voltage V)
or
Gallons per minute coming from hose = Size of the hose (Amps) x Pressure in the hose (Voltage)

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5
Q

using waste heat to generate electricity is called ______

A

cogeneration

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6
Q

A _____ transformer gives you a choice between levels

A

Wye, three wires and a ground creating a Y shape, you get to choose between the three individually

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7
Q

what is power factor

A

it is the result of the current and voltage being out of phase, measured between 0 and 1

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8
Q

A ______ changes current from AC to DC

A

Rectifier, the opposite is called an inverter

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9
Q

What is switchgear

A

equipment that turns off power to a building

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10
Q

Power factor is utilized in which type of current

A

AC

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