Test 2 Flashcards

1
Q

AC and DC definition?

A

Alternating Current

Direct Current

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2
Q

What is crude oil generation?

A

Heating oil into a boiler, which creates steam which turns the turbines.

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3
Q

What is capacitive?

A

The current IS BEHIND the voltage.

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4
Q

What is resistive?

A

100% in sync. (The waves line up)

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5
Q

The number of times a generator rotates in one second is known as what?

A

Frequency, and is measured in cycles per seconds = hertz

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6
Q

What is parabolic solar generation?

A

A solar trough harnesses the heat energy from the sun to heat up salt to a molten state, the salt then passes through a boiler to create steam.

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7
Q

In AC circuits positive and negative means?

A

The direction of current flow in a conductor.

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8
Q

What is photovoltaic solar generation?

A

Uses semi conductive panels to produce power in the form of direct current. (Residential solar panels)

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9
Q

What is inductive?

A

The current is IN FRONT of the voltage?

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10
Q

What are the 5 generation types?

A
Steam
Hydroelectric 
Wind
Distributed generation
Combustion engine/ turbine
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11
Q

What is distributed generation?

A

Smaller scale generation, typically at the point of consumption. (Rooftop solar panels etc)

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12
Q

At what degree is a generator at its maximum peak.

A

90 degrees.

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13
Q

What is frequency?

A

The number of times that a generator rotates in one second. Is measured in cycles per second of hertz.

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14
Q

What is Geothermal generation?

A

Uses natural heat from geysers or hot springs to produce steam.

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15
Q

What is combustion engine generation?

A

Diesel fuel is used to power an engine, which is used to spin a generator.

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16
Q

What is a sine wave?

A

A graphical representation of what is happening to voltage in an AC circuit over a period of time.

17
Q

Rms (root mean square) =

A

Peak x .707

18
Q

How does wind generation work?

A

Wind propelled turbines are used to provide mechanical motion to turn a generator.

19
Q

20 percent of today’s electrical energy comes from where?

A

Nuclear generation

20
Q

Peak =

A

Rms x 1.414

21
Q

What is Fossil Fired generation?

A

Coal, petroleum and natural gas powered furnace that creates steam to power the turbine.