In a class C amplifier, a tank section is composed of a coil and capacitor in parallel. If the capacitor is ____, it can be adjusted to tune the section to a desired frequency, called the resonant frequency.

a. fixed
b. variable
c. cutoff
d. saturated


b. variable

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Using 128-bit addresses provides approximately 10x unique address, where x= _______.

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

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What is a HEPA filter?

A) A filter for heated pans B) A very-high-efficiency air filter C) A filter for a steam heating coil D) A high-efficiency water filter

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In ________ mode, the robot advances through the program one line at a time and requires you to press a button on the teach pendant keypad before it reads the next line of the program and responds.

A. continuous B. automatic C. step D. weave

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Oscillating the torch when fusion welding cast iron is done in order to:

A) Preheat the surface B) Remove gas bubbles C) Smooth out the surface D) Diffuse carbon E) None of the above

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