Answer:
Rectifier
Explanation:
when The reading on a multi meter set used to test a diode shows a reading of approximately 0.6 Volt, it simply means that the diode being tested is a either a silicon diode or a rectifier.
setting the multi meter set to " Diode check" is done when one wants to check for the voltage ( forward or reverse bias ) across the diode. the current passed through the diode is between : 1-10mA. and a reading of 0.6 to 0.7 volts indicates that the diode is a rectifier or a silicon diode