1. 8297. If it is necessary to accurately measure the diam eter of a hole approximately 1/4 inch in diameter, the mechanic should use a A. telescoping gauge and determine the size of the hole by taking a micrometer reading of the adjustable end of the telescoping gauge. B. 0- to 1-inch inside micrometer and read the measurement directly from the micrometer C. small-hole gauge and determine the size of the hole by taking a micrometer reading of the ball end of the gauge.