Question 162Electricity & Electronics - QMED
70% to passWhich of the following precautions should be taken when troubleshooting various power circuits using a digital multimeter?
The correct answer is D) When in the manual ranging mode, always pre-set the meter to the next higher range than the amount of voltage expected in the circuit. This is the correct answer because when using a digital multimeter in manual ranging mode, it is important to set the meter to the next higher range than the expected voltage in the circuit. This helps prevent damage to the meter's internal components from an unexpectedly high voltage. Using the wrong range can overload the meter and potentially cause it to malfunction or even be permanently damaged. The other options are incorrect. Option A is incorrect because digital multimeters are capable of measuring voltages up to several kilohertz. Option B is incorrect because modern digital multimeters are designed to withstand voltages up to several hundred volts. Option C is incorrect because digital multimeters are generally not polarity sensitive and reversing the leads will not result in high temperatures within the tester.
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