List environmental factors that can deteriorate synthetic web material strength.
What will be an ideal response?
Chemical vapors, UV exposure from sunlight, water saturation, elevated temperatures or flames, and mold growth due to humidity.
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A technician is working on vehicle with a 24V electrical system. There are four 12V batteries. How are these batteries connected?
A. All batteries are connected in series. B. All batteries are connected in parallel. C. Two of the batteries are connected in a series-opposing configuration. D. The batteries are connected in a series-parallel configuration.
____________________ takes place at a temperature below 840°F.
Fill in the blank(s) with the appropriate word(s).
When a diode is used in an AC circuit for half-wave rectification, which of the following should be true?
A. it becomes reverse bias to block the positive half of the AC sine wave B. scrambles frequency of the AC sine wave C. it becomes forward bias to conduct the positive half of the AC sine wave D. square waves the sine wave
Which of the following filters would be appropriate for a large industrial air handler?
A) a 16" × 20" × 1" panel filter B) an electronic air cleaner C) a large fiberglass roll filter D) a washable hogs hair filter