ELECTRICAL #5

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Question 1 of 1

  Time Left


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60
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The duration of backup lighting should not be less than _________ minutes?

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481119
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60
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481120
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60
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481121
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60
none
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60
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481123
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60
none
481124
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60
none
481125
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60
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60
none
481128
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60
none
481129
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60
none
481130
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60
none