10 Questions
What is the purpose of the yoke in a DC machine?
To protect the inner parts of the machine mechanically
What material is generally used for making the yoke of smaller DC machines?
Cast iron
What is the function of pole shoes in a DC machine?
To spread out the magnetic flux over the armature periphery
What material is commonly used for making pole core and pole shoes in a DC machine?
Cast steel
What type of wire is used for the construction of field or exciting coils in a DC machine?
Enameled copper wire
Yoke provides a low reluctance path for the ______ flux
magnetic
Pole core and pole shoes are made of thin cast steel or wrought iron ______
laminations
Enameled copper wire is used for the construction of field or exciting ______
coils
Armature Core is cylindrical is shape and keyed to the rotating ______
shaft
The outer cylindrical frame to which main poles and inter poles are fixed is called ______
yoke
Test your knowledge of DC machine construction with this quiz. Learn about the magnetic frame or yoke and its role in providing mechanical protection and a low reluctance path for magnetic flux. Understand the materials used and the functions of this essential component.
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