____ is the bottom of external and the top of internal threads.

A. Root
B. Clevis
C. Keyseat
D. Pitch
E. none of the above


Answer: A

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From a benchmark, the reading at the telescope crosshairs is the ____________________.

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

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Answer the following statement true (T) or false (F)

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Carbon brushes that ride on the slip rings provide electricity to the field coil.

Answer the following statement true (T) or false (F)

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A good engine should produce how much compression during a running (dynamic) compression test at idle?

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