Question 81Electricity & Electronics - 1st Asst/Chief

The correct answer is D) Neither I nor II. The explanation is as follows: 1. Using resistance scales requiring high power and forward biasing of junctions or reversing polarity of the leads are not practices that should be avoided when testing the discrete semiconductor components of a printed circuit board with a volt-ohmmeter. These practices are actually recommended to obtain accurate readings and avoid misleading results. 2. Forward biasing the junctions helps to overcome the semiconductor's natural resistance, while reversing the polarity of the leads can help identify the type of semiconductor (diode, transistor, etc.). Additionally, using high-power resistance scales can provide more precise measurements compared to low-power scales. 3. Options A and B are incorrect because the practices mentioned in the question are not things that should be avoided, but rather recommended techniques for accurate testing of semiconductor components.