Which of the following are non-volatile and electro-mechanical?
A) CD-ROM B) hard drive C) floppy disk D) all of the above
D
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How many degrees in 1/4 of a circle?
What will be an ideal response?
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Material delivery to the jobsite, and even to the location within the jobsite, is most economically done by delivery people employed by the ____________________.
Fill in the blank(s) with the appropriate word(s).
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When should bulbs be fertilized?
What will be an ideal response?
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Why do direct spark ignition systems use flame rectification for flame safety?
A) flame rectification is much faster than anything that relies on heat B) the flame rod can double as a thermocouple for older furnaces C) flame rectification is less complicated than using a thermocouple D) flame rectification is the oldest flame producing technology
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