How many elements are used for one timer instruction?
A. 1
B. 3
C. 85
Answer: A
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What is the configuration most appropriate for a utility room or closet with the duct in the crawlspace?
A) Lowboy B) Horizontal C) Upflow D) Downflow
The secondary of each instrument transformer is ____________________ to provide protection from high-voltage hazards, as provided in Article 250 Part IX of the NEC.
Fill in the blank(s) with the appropriate word(s).
The purpose of replaceable overload heaters in magnetic starters:
A) Match the overload trip point to a specific motor size. B) To prevent condensation by keeping the overload warm. C) Operate the magnetic starter in the event that the coil fails. D) Is to make them more convenient to change.
When joining steel pipe, the following should be applied to the threads before connecting.
A. pipe dope B. flux C. Teflon tape D. a and c