Question 157Electricity/Electronics - QMED70% to pass
As shown in figure "A" of the illustrated digital multimeter screen, what would be the significance of the symbol indicated by "2" being illuminated? Illustration EL-0047

AI Explanation
The correct answer is C) the selector switch is in the continuity/diode test position and the secondary function push button is toggled for diode.
The illumination of the "2" symbol on the digital multimeter screen indicates that the meter is in the diode test mode. In this mode, the multimeter applies a small voltage across the test leads and measures the voltage drop, which can be used to test the condition of a diode. This is the secondary function of the multimeter, which is accessed by toggling the secondary function push button.
The other answer choices are incorrect because they do not accurately describe the conditions indicated by the "2" symbol. Option A is incorrect as the resistance measurement mode does not have a specific symbol like "2". Option B is incorrect as the continuity test mode would be indicated by a different symbol. Option D is incorrect as the resistance measurement mode does not have a specific diode testing function.
Related Questions
#155 Before measuring an unknown resistance with an analog multimeter set up as an ohmmeter, what should you do? #156 What is an ohmmeter used to measure? #158 A digital multimeter is set up as an ohmmeter on the 1 kilo ohm scale. What does a display reading of 'OL' ohms as read across the ends of a wire conductor indicate? #159 If the approximate voltage to be measured in an electric circuit is not known, what should be done? #160 In troubleshooting a circuit in a console, you find that a resistor may be faulty. Which of the precautions listed must be observed when using an analog or digital multimeter set up as an ohmmeter to carry out this test?