Question 167Electricity & Electronics - QMED

70% to pass

Which of the listed statements is correct when using a digital multimeter set up as an ohmmeter?

AWith the test leads shorted together, a reading of 'zero' ohms will be displayed.
BWith the test leads shorted together, a reading of 'OL' ohms will be displayed.
CWith the test leads apart insulated from each other, a reading of 'zero' ohms will be displayed.
DIt is usually not possible for a digital multimeter to be set up as an ohmmeter.
AI Explanation

The correct answer is A) With the test leads shorted together, a reading of 'zero' ohms will be displayed. This is correct because when the test leads of a digital multimeter are shorted together (connected with no resistance between them), the multimeter will display a reading of '0' ohms, indicating zero resistance. This is the expected behavior when using the ohmmeter function of a digital multimeter. The other options are incorrect: B is incorrect because 'OL' (overload) would only be displayed if the resistance between the test leads exceeded the maximum range of the ohmmeter. C is incorrect because with the test leads apart and insulated, the multimeter would display a very high resistance, not 'zero' ohms. D is incorrect because digital multimeters are specifically designed to function as ohmmeters, measuring the resistance between the test leads.

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience.

Get the App