A grounding connection to the grounded (neutral) conductor is not permitted at or for which of the following locations?
A. Separately derived systems
B. Separate buildings supplied by a feeder
C. A new branch circuit for an electric range
D. Meters on the load side of the service disconnecting means but located near the service
C. A new branch circuit for an electric range
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A vehicle battery is consistently low on voltage. Technician A says to disconnect the battery with the engine running to test for alternator output. Technician B says that a loose alternator belt may cause this problem. Who is right?
A) A only B) B only C) Both A and B D) Neither A nor B
When a control circuit is constructed, it must have sensing devices to tell it what to do.
Answer the following statement true (T) or false (F)
Plumbing codes require the installation of reduced-pressure zone principle backflow preventer assemblies in _____.
a. swimming pools b. car washes c. landscape irrigation systems d. residences
Three factors that are required to be present for electro-magnetic induction to occur are an electrical conductor, magnetic lines of flux and ____.
a. relative motion between the two b. turns of wire c. current flow d. magnetic field