Category: Electrical Engineering MCQs

What is the effect of an increased air gap in an induction motor? A Increased speed B Decreased torque C

What is the primary function of cooling methods in induction motors? A Increase power B Improve efficiency C Control temperature

What is the main advantage of operating synchronous motors in parallel? A Increased torque B Load sharing C Increased power

What is the primary cause of losses in an induction motor? A Friction losses B Core losses C Rotor losses

What determines the synchronous speed of a motor? A Load applied B Stator resistance C Frequency and poles D Rotor

What is the primary purpose of a stator in a synchronous motor? A Supply current B Generate flux C Rotate

What is the function of slip rings in an induction motor? A Maintain rotor speed B Supply power C Connect

What is the purpose of using a laminated core in transformers? A Increase voltage B Decrease impedance C Reduce eddy

What is the primary function of an isolation transformer? A Increase voltage B Provide isolation C Control temperature D Reduce

What is the primary purpose of insulation testing in transformers? A Check insulation integrity B Test voltage C Measure resistance