Exam Question
(a) Draw a 4-pole d.c generator construction diagram labelling its main parts. (8)
(b) Describe briefly its (8)
(i) Field system
(ii) Armature
(iii) Commutator
(iv) Brushes
Class 4 (4th Engineer)
MET
📅 Jan 2025
Reference Answer
### (a) 4-Pole DC Generator Construction Diagram
A detailed cross-sectional diagram of a 4-pole DC generator is required. The diagram must clearly label the following principal components:
* **Yoke:** The outer frame of the machine, providing mechanical support and a path for magnetic flux.
* **Field Poles (Pole Core and Pole Shoe):** The electromagnets that produce the main magnetic field.
A detailed cross-sectional diagram of a 4-pole DC generator is required. The diagram must clearly label the following principal components:
* **Yoke:** The outer frame of the machine, providing mechanical support and a path for magnetic flux.
* **Field Poles (Pole Core and Pole Shoe):** The electromagnets that produce the main magnetic field.
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