Crosshatching is accomplished by using a _______ triangle to draw parallel lines
A. 15
B. 45
C. 90
D. 180
Answer: B
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When a subfeeder serves more than one panelboard, then connections must be made in the subfeeder for ____.
A. each panelboard B. every other panelboard C. each set of three panelboards D. each set of four panelboards
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What are the two most common methods of circuit protection in structures?
What will be an ideal response?
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If a confined gas is compressed, its temperature will __________.
A. increase B. decrease C. remain the same
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When a semiconductor material is mixed with an impurity that has ____ valence electrons, such as arsenic or antimony, the lattice structure has an excess of electrons.
A. two B. three C. five D. seven
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