What is the current that most series street lighting circuits require?
What will be an ideal response?
Most series street lighting circuits require a current of 6.6 A.
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Conductive optical fiber cables _________ occupy the same raceway or cable tray with those of Class 1 circuits
. A. Shall be permitted to B. Shall not be permitted to C. Should always D. Used for communication circuits
The temperature of the water returning to a chiller used for comfort cooling is typically about _____.
a. 35°F (2°C) b. 45°F (7°C) c. 55°F (13°C) d. 65°F (18°C)
Answer the following statement(s) true (T) or false (F)
1. Thermopile is the name given to devices that produce a small emf when the junction of two dissimilar metals is being heated. 2. Some materials develop opposite electrical charges on opposite sides when they are compressed (or twisted, bent, or stretched). 3. Electrolysis uses an electrical current to produce desirable chemical changes or variations in the properties of certain substances. 4. Magnetic crystals are used in small earphones, where the crystal magnetizes a diaphragm, causing audible sound waves. 5. Electricity and magnetism are two distinctly different and unrelated phenomena.
In many ways, North Carolina was the least typical of the five plantation colonies. Describe the unique features of colonial North Carolina and explain why this colony was so unlike its southern neighbors.
What will be an ideal response?