Which of the following is correct about the hardness of angle plates?
(a) Minimum hardness of 100 HB
(b) Minimum hardness of 180 HB
(c) Maximum hardness of 180 HB
(d) Maximum hardness of 100 HB
I have been asked this question during an interview.
I need to ask this question from Angle Plates in division Linear Measurements of Engineering Metrology