One of the three factors that will cause a three-phase motor’s magnetic field to rotate is that the _____.
a. voltages of a three-phase electrical system are 180° out of phase with each other
b. stator windings around the inside of the motor are arranged in a specific manner to induce
rotation
c. stators have dual-voltage
d. three voltages maintain constant polarity
b. stator windings around the inside of the motor are arranged in a specific manner to induce
rotation
You might also like to view...
In the article “An Investigation of the 
-Fe Flux System Using the Submerged Are Welding Process on HSLA-100 and AISI-1018 Steels”, the carbon equivalent P of a weld metal is defined to be a linear combination of the weight percentages of carbon (C), manganese (Mn), copper (Cu), chromium (Cr), silicon (Si), nickel (Ni), molybdenum (Mo), vanadium (V), and boron (B). The carbon equivalent is given by
Means and standard deviations of the weight percents of these chemicals were estimated from measurements on 45 weld metals produced on HSLA-100 steel base metal. Assume the means and standard deviations (SD) are as given in the following table.
a. Find the mean carbon equivalent of weld metals produced from HSLA-100 steel base metal.
b. Assuming the weight percents to be independent, find the standard deviation of the carbon equivalent of weld metals produced from HSLA-100 steel base metal.
Capitalization is always a consequence of government efforts to increase or stabilize farm income
Indicate whether the statement is true or false
Technician A says that a major source of chemical danger is from solvents containing chlorinated hydrocarbon solvents. Technician B says that solvents can be recycled so that they can be reused. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
The top of a standpipe riser extends up onto the roof. Three hose connections are attached to the top of the standpipe riser. These three connections make up the
A. roof manifold B. O S & Y C. gate valve assembly D. release rack