Previous Year Question
The operation of repulsion induction motors is based on:
Correct answer: B
Explanation
The motor develops high starting torque by the repulsion principle and, as it approaches running condition, operates with induction-motor action. Its operation therefore combines repulsion and induction principles.
Step-by-step solution
Correct Answer
B — Combination of repulsion and induction principles
Explanation
The motor develops high starting torque by the repulsion principle and, as it approaches running condition, operates with induction-motor action. Its operation therefore combines repulsion and induction principles.
Key Concept
Combined Repulsion and Induction Principle
Exam Point
Name tells the principle: repulsion-induction uses both.
Exam tip
Name tells the principle: repulsion-induction uses both.
Quick method
Name tells the principle: repulsion-induction uses both.