Question 386Electricity & Electronics - QMED
70% to passAs shown in figures "A", "B", "C", and "D" of the illustration, what is the usual means by which the rotation direction of the motor is reversed? Illustration EL-0207

The correct answer is C) Interchanging leads T5 and T8. In an induction motor, the direction of rotation can be reversed by interchanging any two of the three phase leads connected to the motor. In this case, interchanging leads T5 and T8 will effectively reverse the direction of the rotating magnetic field, causing the motor to rotate in the opposite direction. The other options are incorrect because they do not represent the usual means of reversing the motor's rotation. Interchanging L1 and L2 (option B) or T1 and T5 (option D) would not necessarily reverse the rotation. Interchanging T4 and T8 (option A) is also not the typical method, as it does not involve interchanging two of the three phase leads.
Ready to test your knowledge?
Take a Electricity & Electronics - QMED Practice ExamWant to practice with timed exams?
Download Coast Guard Exams for the full exam experience.
Get the App