Question 175Electricity & Electronics - 1st Asst/Chief

The correct answer is D) notify the electrician or watch engineer of the problem. A loud buzzing noise coming from a magnetic motor controller is an indication of a potential issue, such as a failing component or overload condition. Rather than attempting to diagnose or fix the problem yourself, the appropriate action is to notify the electrician or watch engineer responsible for maintaining the equipment. They have the necessary expertise and tools to properly inspect and address the problem, ensuring the safe and proper operation of the motor controller. The other answer choices would be inappropriate, as feeling the casing (A) could be unsafe, and assuming normal operation (B) or full load (C) without investigation could lead to further damage or hazardous conditions.