39) For TIG welding, commonly used gase is
Answer is:
Argon
Related ISRO Technician-B Fitter Question Paper - 2012 (Set - 1) with Answer Key
Answer is:
Holding and guiding the tool
Explanation:
A jig is a work-holding device that holds, supports, and locates the workpiece and guides the one or more tools to perform a specific operation.
A fixture is a work-holding device that only holds, supports, and locates the workpiece, but does not guide the tools to perform a specific operation.
Answer is: