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মেশিন শপ প্রাক্টিস MCQ
6. The process of chamfering the entrance of a drilled hole is known as -
material of workpiece should be harder than the cutting tool
cutting tool should be harder than the material of work picce
hardness of the cutting tool and material of of piece should be same
none of the mentioned
15. Why metal removal process is costly?
more energy is required
some of the material is wasted
both more energy is required and some of de material is wasted
none of the mentioned
17. What is the necessary condition for turning?
material of workpiece should be harder than the cutting tool
cutting tool should be harder than the material of work picce
hardness of the cutting tool and material of of piece should be same
none of the mentioned