What is the listed resolution for height gauges when using granite surface plates?

What is the listed resolution for height gauges when using granite surface plates?

• A. 0.01 in. (0.254 mm)
• B. 0.1 in. (2.54 mm)
• C. 0.001 in. (0.0254 mm)
• D. 1.0 in. (25.4 mm)

Answer: (A)

Understanding resolution: it’s the smallest incremental change a height gauge can reliably read when used on a granite surface plate. On typical height gauges paired with granite plates, the listed resolution is 0.01 in (0.254 mm). This means you can read heights to the nearest hundredth of an inch, which is practical for many inspection tasks because the granite plate provides a very stable, flat reference and the gauge’s scale is designed for that level of detail. The other options represent either coarser or finer increments than what is commonly specified for standard height gauges on granite plates; 0.1 in is too coarse for precise checks, 0.001 in would be a higher-precision instrument not usually listed as the standard resolution here, and 1.0 in would be unusable for precise measurements.

Understanding resolution: it’s the smallest incremental change a height gauge can reliably read when used on a granite surface plate. On typical height gauges paired with granite plates, the listed resolution is 0.01 in (0.254 mm). This means you can read heights to the nearest hundredth of an inch, which is practical for many inspection tasks because the granite plate provides a very stable, flat reference and the gauge’s scale is designed for that level of detail. The other options represent either coarser or finer increments than what is commonly specified for standard height gauges on granite plates; 0.1 in is too coarse for precise checks, 0.001 in would be a higher-precision instrument not usually listed as the standard resolution here, and 1.0 in would be unusable for precise measurements.