BHEL Mechanical Maintenance Fitter Interview Questions and Answers

Vernier caliper least count is the smallest measurement that can be read on the scale of the caliper.

• Vernier caliper least count is the difference between one smallest division on the main scale and one smallest division on the vernier scale.

• It helps in achieving more precise measurements than a regular scale.

• For example, if the main scale division is 1 mm and the vernier scale division is 0.1 mm, the least count would

Micrometer least count is the smallest measurement that can be read on a micrometer scale.

• Micrometer least count is determined by the number of divisions on the thimble and the main scale.

• It is used to measure very small dimensions accurately.

• For example, if a micrometer has 50 divisions on the thimble and the main scale is in millimeters, the least count would be 0.01 mm.

A height gauge is a precision measurement tool used to measure the height of objects or distances between surfaces.

• Height gauges typically consist of a base, a vertical column, a measuring head, and a scriber or probe.

• They are commonly used in machining and manufacturing to ensure accurate measurements and dimensions.

• Height gauges can be manual or digital, with digital versions offering higher precision and ease of use...read more