All fluorescent lamps require a ____, a device that increases the frequency of line power delivered to a fixture to control the starting and operating voltages of the lamp.

A. ballast
B. filament
C. tripler
D. monitor


Answer: A

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Cables in a fire alarm system must be supported by _____.

a. NFPA-brand cable ties b. winged expansion anchors c. the building structure d. red electrical boxes

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When a plane surface is tangent to a contoured surface, a line is drawn to show the point of intersection

Indicate whether the statement is true or false

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Describe how affluence contributes to environmental impact.

What will be an ideal response?

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Do not allow anyone within _____ feet of the manlift when the platform is being raised or when the machine is moving.

a. 6 b. 8 c. 10 d. 12

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