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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