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Manufacturing and Production: Part 22
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Ashish Futtan is teaching live on Unacademy Plus

Ashish Futtan
MTECH IIT Bombay|Quora Top Writer for GATE Mechanical 2019|Cracked IIT (ISM) Dhanbad,IIT DELHI|3 times GATE qualified| Singer|

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  1. 1 manufacturing and production


  2. HELLO! l am ASHISH FUTTAN MTECH-IT BOMBAY TOP STAR EDUCATOR VERIFIED EDUCATOR CRACKED VARIOUS IITs 3 TIMES GATE QUALIFIED PUBLISHED MORE THAN 600 LESSONS


  3. IES 1995 Crater wear is predominant in (a) Carbon steel tools (b) Tungsten carbide tools (c) High speed steel tools (d) Ceramic tools


  4. IAS - 2002 Consider the following actions: 1. Mechanical abrasion 2. Diffusion 3. Plastic deformation 4. Oxidation Which of the above are the causes of tool wear? (a) 2 and 3 (b) 1 and 2 (c) 1, 2 and 4 (d)1 and 3


  5. IES 1995 Match List I with List Il and select the correct answer using the codes given below the lists: List I (Wear type) ListIl (Associated mechanism) A. Abrasive wears B. Adhesive wears 2. Ploughing action C. Electrolytic wear 3. Molecular transfer D. Diffusion wears 1. Galvanic action 4. Plastic deformation 5. Metallic bond Code: A B C D (a) 2 5 1 3 (b) 5 2 1 3 (c) 2 1 3 4 (d) 5 2 3 4


  6. IAS - 1999 The type of wear that occurs due to the cutting action of the particles in the cutting fluid is referred to as (a) Attritions wear (b) Diffusion wear (c) Erosive wear (d) Corrosive wear


  7. 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


  8. 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.


  9. Which of the following statemESz201.5 for temperature rise in metal cutting operation? 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 and 3 (c) 3 and 4 only (d) 1, 3 and 4


  10. 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