Question 345Electricity & Electronics - QMED

The correct answer is C) periodic changing or cleaning of console ventilation and control room air conditioning filters. This is the correct answer because heat and vibration can degrade the performance and lifespan of electronic components in the console. Ensuring proper airflow and temperature control through regular maintenance of the ventilation and air conditioning systems helps mitigate the effects of heat buildup, which is a key contributor to electronic failures. The other options are not as effective in addressing the root causes of heat and vibration. Daily inspection of foundation bolts (A) does not directly address heat/vibration issues. Unplugging and reseating circuit cards daily (B) is an overly frequent and unnecessary maintenance procedure. Rotating circuit cards with spares (D) may help distribute wear, but does not address the underlying environmental factors.