In the USA, natural gas suppliers supply gas with a heat content of about 1,050 Btu/cu. ft.
Answer the following statement true (T) or false (F)
True
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? Identify and state the historical significance of David Wilmot.
What will be an ideal response?
Potential or voltage transformers are _____.
a. buck-and-boost transformer b. three-phase transformers c. control transformers d. single-phase transformers
Answer the following statement(s) true (T) or false (F)
1. Alternating current travels in three directions in a circuit. 2. The purpose of overcurrent protection is to open a circuit if the temperature in the wiring or equipment rises to an excessive or dangerous level. 3. A fuel cell is like a battery except, rather than requiring periodic recharging, it runs continuously as long as it gets a constant supply of hydrogen gas and oxygen. 4. Electric welders are of the arc type and the resistance type. 5. The raceway in cellular concrete floor slabs is metal.
What is the difference between a short circuit and on open circuit?
What will be an ideal response?