Cast iron does not require any coolant because, graphite in the cast iron acts as a lubricant.
8) What is the coolant used for machining cast iron?
Answer is:
No coolant
Explanation:
Related ISRO Technician-B Fitter Question Paper - 2016 (Set - 2) with Answer Key
Answer is:
Drill diameter
Explanation:
As per the Indian standard (IS) system, a drill bit is designated as 9.5-H-IS5101-HS, in this the number 9.5 stands for drill diameter.
Answer is: