Question 195General Subjects - QMED70% to pass
It is necessary to 'chalk' a file when the metal you are filing is _______________.
AI Explanation
The correct answer is A) aluminum.
When filing aluminum, it is necessary to 'chalk' the file to prevent the metal from gumming up or clogging the file teeth. Aluminum is a softer metal that can easily fill the file's grooves, reducing its cutting ability. Chalking the file creates a protective layer that helps prevent this issue.
The other options (B - monel, C - mild steel, D - stainless steel) do not require chalking the file, as these harder metals do not have the same tendency to clog or gum up the file in the same way as the softer aluminum.
Related Questions
#193 Screwdrivers designed for electrical use should have _______________.#194 Some heavy duty screwdrivers are made with a square shank to _______________.#196 Which of the listed types of files is the best for producing a fine finish on metal? #197 A new file should be broken in carefully by filing a piece of _______________.#198 Double cut files are most effective when used for _______________.