Chapter 9 Basic Electrical Tests 177 Copyright by Goodheart-Willcox Co., Inc. Figure 9-19. Sample voltage settings and readings. A—The meter can be set to read volts DC (straight line) or volts AC (curved line). B—The meter displays AC or DC in the display window, depending on which type of voltage is being read. This is an AC voltage reading. C—This is a DC voltage reading. D—This is a DC reading in millivolts. (Fluke) D Volts DC Volts AC A C B Figure 9-20. Sample ohmmeter settings and readings. A—The function knob must be set to ohms. B—This reading is displayed in ohms. C—Note the capital M next to this reading. The reading is displayed in megohms. D—What unit of measurement is used in this reading? (Fluke) D A C B