Podcast
Questions and Answers
What is the purpose of the yoke in a DC machine?
What is the purpose of the yoke in a DC machine?
- To protect the inner parts of the machine mechanically (correct)
- To support the field or exciting coils
- To provide a low reluctance path for the magnetic flux
- To spread out the magnetic flux over the armature periphery
What material is generally used for making the yoke of smaller DC machines?
What material is generally used for making the yoke of smaller DC machines?
- Cast iron (correct)
- Wrought iron
- Enameled copper wire
- Cast steel
What is the function of pole shoes in a DC machine?
What is the function of pole shoes in a DC machine?
- To provide mechanical protection to the inner parts
- To provide a low reluctance path for the magnetic flux
- To support the field or exciting coils
- To spread out the magnetic flux over the armature periphery (correct)
What material is commonly used for making pole core and pole shoes in a DC machine?
What material is commonly used for making pole core and pole shoes in a DC machine?
What type of wire is used for the construction of field or exciting coils in a DC machine?
What type of wire is used for the construction of field or exciting coils in a DC machine?
Yoke provides a low reluctance path for the ______ flux
Yoke provides a low reluctance path for the ______ flux
Pole core and pole shoes are made of thin cast steel or wrought iron ______
Pole core and pole shoes are made of thin cast steel or wrought iron ______
Enameled copper wire is used for the construction of field or exciting ______
Enameled copper wire is used for the construction of field or exciting ______
Armature Core is cylindrical is shape and keyed to the rotating ______
Armature Core is cylindrical is shape and keyed to the rotating ______
The outer cylindrical frame to which main poles and inter poles are fixed is called ______
The outer cylindrical frame to which main poles and inter poles are fixed is called ______
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