Johannsen Gauges are otherwise known as-

Explanation

Explanation: Slip gauge Slip gauges or gauge blocks are used as standards for precision length measurement. These gauges are made in sets and consist of a number of hardened blocks made of high-grade steel with low thermal expansion. It is also famous with the name of Johannsen Gauges These slip gauges are available in various sets with different numbers. A particular size can be built up by wringing individual slip gauges together. Wringing is the act of joining the slip gauges together while building up to sizes. The faces of the slip gauges are finished by Lapping only. Important Points Feeler gauge: Feeler gauge is used to check the gap between the mating parts. Radius and fillet gauge: Components are machined to have curved formation on the edges or at the junction of two parts, which are known as fillet. The gauges used to check the radius of fillet are fillet gauges. Scr