The overcurrent protection for an electric furnace should be:
A) No larger than the maximum overcurrent protection listed on the unit data plate.
B) At least as large as the maximum overcurrent protection listed on the unit data plate.
C) No larger than the minimum circuit ampacity rating used to size the wire.
D) The same size as the minimum circuit ampacity rating for the wire.
A
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Answer the following statement(s) true (T) or false (F)
1. The major source of electrical power in the generation of AC voltage is provided by electromagnetic generation. 2. The equation associated with Faraday’s law states that if 100 million lines of magnetic flux cut through a conductor in 1 second, then 1 volt is induced into the conductor. 3. As the conductor passes directly under the center of the magnetic field pole, the flux is most dense and the induced voltage is greatest. 4. The looped conductor multiplies the effects of the magnetic field cutting just one conductor. 5. Large power generation systems typically generate four phases at a time.
Which of the following is essential to long turbocharger life?
A) Flush the turbocharger unit when the engine is overhauled. B) Keep dirt particles and contamination out of intake and exhaust housings. C) Maintaining a clean supply of engine oil. D) All of these are correct.
Material that has been issued a _____ is marked with the © symbol.
A. patent B. bookmark C. trademark D. copyright
The location of interior and exterior footings would be shown on the _____
a. site plan b. mechanical plan c. roof plan d. foundation plan