Specifications
OCTE SAFEdoc 
TRANS 
Safety Quiz – Brake Lathe 
1.  The personal protective equipment to wear when using a brake lathe includes 
__________________________ and ________________________. 
2.  Why is it essential the brake drum or rotor be carefully measured and examined prior to 
mounting it on the brake lathe? 
_____________________________________________________________________. 
3.  What is the minimum thickness specification for the drum or rotor you are working on? 
____________________________________________________________________. 
4.  Three potential injuries to persons who incorrectly use a brake lathe include: 
____________________,__________________________,_____________________. 
5.  The “cutter” on the brake lathe is made of this material. 
______________________________________________. 
6.  The rubber strap that is installed around the perimeter of the drum or rotor helps to 
prevent ____________________________________________________________. 
7.  What is the maximum size of cut to take on the brake lathe? 
________________________. 
8.  Turning the rotation dial (which governs the depth of cut) .005” on the drum lathe will 
remove 0._______” of material when the cutter is engaged. 
9.  Define the term “undersize” as it applies to a drum or rotor. 
____________________________________________________________________. 
10. What would you do with a drum or rotor that has: 
•  Cracks in the surface _____________________________________________. 
•  Black coloured “hot” spots _________________________________________. 
Transportation SAFEdoc  Page 55 










