Multiple choice

The flatness of a machine bed can be measured using

  1. Vernier calipers

  2. Auto collimator

  3. Height gauge

  4. Tool maker's microscope

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Auto collimater is used to measure the flatness of the machine bed. Vernier calipers is used to measure the dimensions (dia) of component. Height gauge measures height.