Which of the following is true of grinding tungsten electrodes?

Question

Quizplus · Accepted Answer

Using a grinder that has been previously used for other metals may result in contamination of the tungsten electrode when the arc is started, making it important to use a grinder dedicated to tungsten electrode grinding. Option B is incorrect, as a fine, hard grinding stone gives a better finish and reduces tungsten breakage. Option C is also incorrect, as a fine stone is generally preferable to a coarse stone. Finally, option D is incorrect as grinders can be used to clean tungsten electrodes, provided they have never been used on other metals.

Which of the Following Is True of Grinding Tungsten Electrodes