Question 231Electricity & Electronics - 1st Asst/Chief

The correct answer is D) non-reversing squirrel cage induction motor with reduced voltage autotransformer starting. This is the correct answer because the illustration EL-0137 depicts a non-reversing squirrel cage induction motor, which is a commonly used motor type in marine applications. The starting method shown is a reduced voltage autotransformer, which is a standard technique to smoothly start and accelerate large induction motors to full speed. The other options are incorrect because option A describes a primary reactor starting method, option B describes a reversing motor, and option C describes an across-the-line (full voltage) starting method, which is less common for large motors.