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manufacturing and production
HELLO! I am ASHISH FUTTAN MTECH-IIT BOMBAY TOP STAR EDUCATOFR VERIFIED EDUCATOR CRACKED VARIOUS IITS 3 TIMES GATE QUALIFIED PUBLISHED MORE THAN 600 LESSONS
IAS - 2003 Consider the following statements: Chipping of a cutting tool is due to 1. Tool material being too brittle 2. Hot hardness of the tool material 3. High positive rake angle of the tool. Which of these statements are correct? (a) 1, 2 and 3 (b) 1 and 3 (c) 2 and 3 (d) 1 and 2
IES - 1996 Notch wear at the outside edge of the depth of cut is due to (a) Abrasive action of the work hardened chip material (b) Oxidation (c) Slip-stick action of the chip (d) Chipping.
Which of the tolowing be cet for temperature rie are be correct for temperature rise in metal cutting operation 2015 1. It adversely affects the properties of tool material 2. It provides better accuracy during machining 3. It causes dimensional changes in the work-piece and affects the accuracy of machining 4. It can distort the accuracy of machine tool itself. (a) 1 and 2 (b) 2 and3 (c) 3 and 4 only (d) 1, 3 and 4
IES - 1992 Tool life is generally specified by (a) Number of pieces machined (b) Volume of metal removed (c) Actual cutting time (d) Any of the above
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