Sagot :
1. VOLTAGE TESTER is the simplest of these tools. This type of tester is always used with the current turned on to determine whether there is current flowing through a wire and to test for proper grounding. It is also used to determine whether adequate voltage is present in a wire.
2. STANDARD, CRITERION, GAUGE, YARDSTICK, TOUCHSTONE mean a means of determining what a thing should be.
3. ANALOG MULTIMETERS use a microammeter with a moving pointer to display readings. Digital multimeters (DMM, DVOM) have numeric displays and have made analog multimeters obsolete as they are cheaper, more precise, and more physically robust than analog multimeters. Multimeters vary in size, features, and price
4. MICROMETER used to measure the diameter of wires/conductors in circular mils. It can measure small and big sizes of wires and cables.
5. A STANDARD RULER is 12-inches long and 30 centimeters in length.