What is flashover and what are its causes?
What will be an ideal response?
An arc condition that can be caused when a high voltage lines come into contact with each other or a lower voltage line.
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What are the guidelines to keep in mind if your first attempt at troubleshooting does not work?
What will be an ideal response?
A ____ rated receptacle outlet shall be installed at an accessible location for the servicing of equipment within a crawl space.
A. 125-volt, single-phase, 15- or 20-ampere B. 112-volt, single-phase, 15- or 20-ampere C. 112-volt, dual-phase, 15- or 20-ampere D. 125-volt, dual-phase, 15- or 20-ampere
Which of the following is not a major factor in determining the soil aeration status?
A) carbon dioxide B) redox potential C) volume of macropores D) oxygen E) nitrogen gas
Concrete slabs can often be poured over unstable soil by using a method of reinforcement known as ____.
A. grading B. post-tensioning C. slab insulation D. metal flashing