Red Seal Plumbing Practice Exam

At what angle is the point on a centre punch ground?

1. 45 degrees

2. 90 degrees

3. 60 degrees

4. 120 degrees

The correct answer is: 90 degrees

A 45 degrees - This is an incorrect angle for grinding a centre punch. 45 degrees is typically used for chamfering or creating a bevel on a punch. B: 90 degrees - This is the correct angle for grinding a centre punch. A centre punch is typically ground at 90 degrees to create a sharp point for marking on metal or other materials. C: 60 degrees - This is an incorrect angle for grinding a centre punch. 60 degrees is typically used for creating an acute angle or a fine point on a punch, not for centre punches. D: 120 degrees - This is an incorrect angle for grinding a centre punch. 120 degrees is typically used for creating an obtuse angle or a rounded point on a punch, not for centre punches.