IMPORTANT 7 & 14 MARKS QUESTIONS
UNIT-I
(Theory of Metal Cutting, Drilling Machine & Abrasive Process)
7 & 14 Marks
Sketch and explain the nomenclature of a single point cutting tool. [October 2020, 2017, 2015, 2014, 2008, 2007, 2004, April 2015, 2014, 2012, 2010, 2007, 2006, 2004]
Explain any four operations which can be performed on a drilling machine with the help of neat sketches. (Or) Explain any three drilling machine operations with sketches. [October 2019, 2016, 2014, 2013, 2011, 2009, 2006, 2003, April 2020, 2015, 2008, 2007, 2005, 2003]
Describe with neat sketch the nomenclature of a twist drill.(June 2020, April 2016, 2014, 2013, 2008, 2006, 2004, October 2018, 2014, 2013, 2011, 2010, 2007)
Explain any two methods of holding a drill bit with sketches. [October 2017, April 2017, 2016]
Explain the construction and working of Radial drilling machine with a neat sketch.(October 2014, 2012, 2008, 2005, 2004, 2001, April 2016, 2012, 2002, 2000)
Explain with sketch the working of a upright drilling machine and stating its salient features.(April 2018, 2010)
Explain the working of an [external Centreless grinder (Or) Centreless grinder] with sketch.
(April 2017, 2010, 2003, 2006, 2000, October 2017, 2016, 2015, 2013, 2012, 2009, 2007)
Describe with a neat sketch about the balancing of grinding wheel. (April 2018, 2016, 2007, 2004, October 2020, 2013)
Describe the mounting of grinding wheels.(April 2019, 2015, 2012, 2004, October 2020, 2016, 2014, 2005, 2001)
Explain with a suitable sketch, the internal centre less grinder. [October 2019, 2015]
Explain with line diagram the working of a surface grinder. (June 2020, April 2016, 2015)
UNIT-II
(Reciprocating Machines and Broaching)
7 & 14 Marks
Explain with a neat sketch the working of an automatic feed mechanism used in [slotter (Or) Slotting machine]. (April 2019, 2015, 2013, 2012, 2006, October 2014, 2013, 2003)
Sketch and explain the crank and slotted link mechanism of a [shaper (Or) Shaping machine]. (June 2020, October 2017, 2016, 2014, 2012, 2009, 2006, 2005, 2004, 2001, April 2018, 2017, 2009)
Explain the feed mechanism in a shaper with a neat sketch. [October 2018, 2004, April 2016]
Explain the hydraulic quick return mechanism in a shaper with a sketch.(October 2020, 2015, 2003)
Explain with a neat sketch the open and crossed belt mechanism of a planner. (April 2005, October 2019, 2011, 2006)
Explain a quick return mechanism in the planning machine. (April 2019, 2015, October 2014)
Describe with a neat sketch working of horizontal broaching machine. (October 2019, 2007, 2002, April 2017)
Explain any three broaching operations. (Or) What are the broaching operations? Explain any two of them with a simple sketch. (June 2020, April 2016, October 2018, 2017, 2015, 2014, 2010, 2008, 2004)
Explain with sketches, the principle of operation of horizontal continuous broaching and rotary continuous broaching machine. (Or) Explain the continuous broaching operation. (April 2018, 2017, 2016, 2015, 2014, 2009, 2007, 2006, 2002, October 2017, 2015, 2013)
UNIT-III
(Milling Machines and Gear Generating)
7 & 14 Marks
Milling Machines
Explain any two methods of indexing with suitable diagrams. [October 2019, April 2018]
Explain the nomenclature of the cylindrical milling cutter. [April 2019, October 2016]
With sketches, briefly explain any three types of milling operations. (April 2013, 2005, 2002, October 2018, 2015, 2014, 2013, 2012, 2009, 2003)
With the help of the following index plates (Brown and Sharpe) and change gears index 83 divisions. [April 2017]
Index plates:
Plate No.1 = 15, 16, 17, 18, 19, 20
Plate No.1 = 21, 23, 27, 29, 31, 33
Plate No.1 = 37, 39, 41, 43, 47, 49
Change gears:
22, 24, 28, 32, 40, 44
48, 56, 64, 72, 86, 100
With sketches explain the constructional details of a column and knee type milling machine.
(June 2020, April 2015, October 2005)
Gear Generating Processes
Explain the gear finishing process (a) Gear shaving (b) Gear burnishing (c) Gear grinding (d) Gear Lapping. (April 2019, 2016, 2014, 2012, 2009, 2008, 2007, 2005, 2004, 2003, October 2020, 2019, 2018, 2015, 2012, 2009, 2008, 2007, 2006, 2005, 2004)
Describe the gear hobbing process with suitable sketch. (October 2017, 2013, 2011, 2010, 2004, 2002, April 2018, 2017, 2016, 2015, 2007, 2005, 2003, 2002, 2000)
Explain the gear shaping process with neat sketch. (April 2010, 2008, 2005, October 2017, 2013, 2010)
Explain the various materials used for manufacturing the gear materials. (June 2020, April 2015, 2013, 2010, 2007, 2006, October 2015, 2013, 2012, 2006, 2002)
UNIT-IV
(Unconventional Machining Processes)
7 & 14 Marks
Explain with sketch the Ultrasonic machine Process. (April 2019, 2015, 2014, 2013, 2002, October 2020, 2019, 2014, 2013)
Explain the construction and working of a laser beam machining with a sketch. (April 2017, 2011, 2002, October 2018, 2014, 2011)
Explain the construction and working of plasma arc machining. (April 2018, 2014, October 2015, 2012, 2010, 2009)
Explain with a neat sketch the electric discharge machining process. What are its advantages and applications? (June 2020, October 2013, 2012, 2008, 2001, April 2016, 2010, 2002)
Explain Electro chemical grinding process. (April 2016, 2015, 2011, October 2011)
Write the applications, advantages and disadvantages of an electro chemical grinding (or) Machining. (October 2017, 2016, 2011, April 2015, 2011, 2002)
UNIT-V
(CNC Machine and CNC Programming)
7 & 14 Marks
Explain the construction and working principle of a turning centre with neat sketch. (October 2019, 2018, 2016, 2013, 2006, 2002, April 2019, 2016, 2015, 2010)
Explain the working of a rotary transducer and linear transducer with neat diagrams.
(October 2019, 2017, 2016, 2013, 2011, April 2019, 2015, 2007)
Explain the various types of tool magazines used in CNC machines. [October 2018, 2017, April 2017]
Explain the working principle of a Automatic Tool changer (ATC) with a neat sketch. (April 2018, 2015, 2014, 2011, October 2009, 2008)
Write briefly about machining centre axis conversion. Explain any one type of machining centre. (April 2018, 2016, 2015, 2013, 2010, October 2015, 2012, 2010, 2001)
With a suitable sketch, explain the types, construction and applications of co-ordinate measuring machine. (Or) Explain the different structure of co-ordinate measuring machine (CMM) with sketches. (June 2020, October 2010, 2009, 2008, 2006, 2005, April 2017, 2008, 2002)
Explain the construction and working of “co-ordinate measuring machine [CMM]” with neat sketch. (October 2016, 2015, 2013, 2012, 2011, April 2013, 2006)
Describe various applications of CNC machine. [October 2020]
Explain the various tool material used for tool making. [June 2020]
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