9189 Electrical Powerpoint 2
Authored by Brendan Cocks
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Professional Development
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65 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of a transformer in the electrical generation process?
It decreases the electromotive force.
It increases the electromotive force.
It converts AC to DC.
It generates electricity from fossil fuels.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
From what voltage to what voltage does the transformer increase the electromotive force?
From 22,000 volts to 275,000 volts.
From 22,000 volts to 400,000 volts.
From 22,000 volts to 500,000 volts.
From 22,000 volts to 300,000 volts.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What causes the current to flow in the electrical generation process?
The generator.
The turbine.
The electromotive force.
The power station.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of transmitting electricity at very high voltages?
To reduce the cost of electricity
To compensate for power loss through power lines
To increase the speed of electricity transmission
To reduce the size of power lines
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the voltage levels of the supergrid mentioned in the document?
132kV and 33kV
400kV and 275kV
11kV and 400V
275kV and 132kV
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the typical voltage for distribution in large commercial buildings?
11kV
33kV
400V
230V
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the typical voltage for distribution in domestic dwellings?
11kV
33kV
400V
230V
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