Which technician's statement regarding diode testing is correct?

In the context of diode testing, the correct statement made by Technician A addresses the behavior of a diode when tested with a multimeter. A diode typically conducts current in one direction (forward-biased) and blocks current in the reverse direction (reverse-biased). When performing a test on a diode using a multimeter set to the diode testing mode, the multimeter applies a small voltage, allowing the technician to observe whether the diode conducts in one direction and not in the other.

This understanding is fundamental in diagnosing components within electrical and electronic systems. If Technician A provided accurate information about testing a diode—for instance, stating that a diode should conduct in one direction and show an open circuit in the other—then that statement is correct and aligns with standard testing procedures.

The correctness of Technician B's statement would depend on the specifics of what he has said. If it conflicts with standard practices or fails to provide accurate information about how diodes should perform during testing, it would not contribute to the correct understanding.

Therefore, the conclusion that only Technician A's statement is correct solidifies the importance of correctly interpreting how diodes function and how to effectively test them using proper methods.