Question 130Electricity/Electronics - Assistant Engineer70% to pass
What practice could potentially damage a multimeter?
AI Explanation
The correct answer is B) placing the test leads across a voltage source to measure voltage while in the resistance mode.
Placing the multimeter test leads across a voltage source while in the resistance mode can potentially damage the multimeter. This is because the resistance mode is designed to measure the resistance of a circuit or component, not the voltage. Applying a voltage to the resistance mode can overload the multimeter's internal circuitry and cause damage.
The other answer choices do not pose the same risk of damaging the multimeter. Measuring current in voltmeter mode (A), measuring resistance in voltmeter mode (C), and measuring resistance in ammeter mode (D) are generally safe practices, as long as the multimeter is set to the appropriate mode.
Related Questions
#128 When a resistor is used as a shunt and is connected in parallel with a meter movement coil, what capability does this provide? #129 An internal resistance is placed in series with the meter movement of which of the following instruments? #131 What is an ohmmeter used to measure? #132 In what situation would an electrical phase sequence indicator be useful? #133 Periodic testing using a special camera may be performed to detect potentially dangerous loose or corroded bus bar and controller connections. What is the name of this testing technology?