Ungrounded electrical systems are required to have a(n)____________________ that indicates whether any of the ungrounded conductors accidentally makes contact with grounded metal of the system or to the earth.
Fill in the blank(s) with the appropriate word(s).
ground-fault detector
ground fault detector
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Which of the following most affects your ability to make a good first impression?
a. Your attitude b. Your technical knowledge c. The type of tools you carry d. Your business card
A contractor purchases motors listed at $6,800 and receives successive discounts of 20% and 10%. What is the net cost?
Fill in the blank(s) with the appropriate word(s).
NEMA-rated motors are designed to operate at plus or minus ____ percent of their rated voltage.
A. 5 B. 10 C. 15 D. 20
What is the practice of fracturing the big end of a connecting rod is referred to as?
A. Absolute zero rod technology. B. Snapped rod technology. C. Broken rod technology. D. Cracked rod technology.