What is located at a point exactly in between the root and apex (outside diameter) of a gear tooth?

A. addendum
B. dedendum
C. root line
D. pitch line


Answer: D

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Technician Brett used ?hours to install 16 PV panels on a house roof.  Find the average time Brett needed to install each panel.

Fill in the blank(s) with the appropriate word(s).

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In cast and molded parts, a good design practice is to keep major wall thicknesses ____ throughout the part to reduce distortion of the part during its cooling.

A. within a magnitude of each other B. about the same C. less than 10 mm D. greater than 50 mm

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What kind of boiler is used for residential installations?

A) Steam B) Low-pressure C) High-pressure D) Hot-water

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When a toggle switch is in the off position, the NO contacts are an open circuit and the NC contacts are shorted

Indicate whether the statement is true or false

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