Question 133Electricity/Electronics - QMED70% to pass
If you hear a loud buzzing noise coming from a magnetic motor controller, what should you do?
AI Explanation
The correct answer is B) notify the electrician or watch engineer of the problem.
A loud buzzing noise coming from a magnetic motor controller is typically an indication of a problem, such as a potential electrical issue or a malfunctioning component. The correct response is to notify the appropriate personnel, such as the electrician or watch engineer, so they can investigate the issue and take necessary corrective actions.
The other options are incorrect because: A) assuming the motor is operating at full load is not a safe assumption without further investigation, C) assuming the controller is operating normally when there is a clear issue is not recommended, and D) feeling the outside of the casing could be unsafe if the issue is related to electrical problems.
Related Questions
#131 Which device will stop the motor shown in the illustration in case of a short-circuit (high current) motor fault? Illustration EL-0080 #132 In the illustrated motor controller, the motor fails to start. A voltmeter reading between 1 and 5 reads line voltage, while the voltmeter reading between 2 and 5 reads 0 VAC. What is most likely the problem? Illustration EL-0007 #134 The motor starts when the start button in the illustration is pushed, but stops when the button is released. What is most likely the trouble? Illustration EL-0007 #135 The motor fails to start on an attempted startup. With the start button depressed, a voltmeter reading between 1 and 5, as illustrated in figure "A", indicates line voltage available to the control circuit, what should be your next step in the troubleshooting process? Illustration EL-0007 #136 The illustrated motor fails to start and gives a loud hum when the start button is depressed, what should then be your first action? Illustration EL-0007