Question 69Electricity & Electronics - 1st Asst/Chief

70% to pass

If a digital multimeter is set up as shown in figure "B" of the illustration to test a capacitor, what would the display read if the capacitor was functioning properly? Illustration EL-0213

Diagram for USCG Electrical Chief: If a digital multimeter is set up as shown in figure "B" of the illustration to...
Ainitially a very low ohmic value will be displayed, followed by a gradual rise in resistance until a very high value is displayed (OL ohms)
Binitially a very high ohmic value will be displayed (OL ohms), followed by a gradual drop in resistance until a very low value is displayed
Cthe charging voltage would be displayed which will initially be low and gradually rise to the internal battery voltage
Dthe actual capacitance value of the capacitor will be displayed which should be within the tolerance range of the capacitor
AI Explanation

The correct answer is D) the actual capacitance value of the capacitor will be displayed which should be within the tolerance range of the capacitor. When a digital multimeter is set up as shown in figure "B" of the illustration to test a capacitor, it will directly display the actual capacitance value of the capacitor. This is because the multimeter is set to the capacitance measurement function, which allows it to measure the capacitance of the capacitor and display the result. The displayed value should be within the tolerance range specified for the capacitor. The other answer choices are incorrect because they do not accurately describe the behavior of a digital multimeter when testing a capacitor in the configuration shown. The multimeter will not display a resistance value, a charging voltage, or any other indication besides the actual capacitance value.

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Official Resources
46 CFR Electrical Engineering 46 CFR Machinery & Electrical USCG National Maritime Center
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