During a planned maintenance call, technicians should check the power wiring to make sure:
A) The unit is not grounded.
B) Any resilient mounted motors are isolated from ground.
C) The unit is grounded.
D) A heavy wire runs from both L1 and L2 to the equipment ground.
C
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Assume that a ceiling measures 42'-6" × 30'-6" and 2' × 2' tiles are being used. The width of the border tiles on each side of the ceiling that runs parallel to the two 30'-6" walls must be _____.
a. 15" b. 20" c. 25" d. 30"
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What country boasts the highest density of startups in the world?
A. United States B. Israel C. United Kingdom D. China
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Heavy-duty lighting track is identified for use exceeding ____ amperes.
A. 10 B. 20 C. 30 D. 40
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Exhaust back pressure of an engine running at idle should be ________
A) 1.5 in. Hg B) 2.5 PSI C) 2.5 in. Hg D) Less than 1.5 PSI
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