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advanced manufacturing process multiple choice advanced manufacturing process multiple choice advanced manufacturing process multiple choice advanced manufacturing process multiple choice...

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12/27/2020

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Seat No Total number of questions : 60 13041_ADVANCED MANUFACTURING PROCESSES Time : 1hr Max Marks : 50 N.B 1) All questions are Multiple Choice Questions having single correct option. 2) Attempt any 50 questions out of 60. 3) Use of calculator is allowed. 4) Each question carries 1 Mark. 5) Specially abled students are allowed 20 minutes extra for examination. 6) Do not use pencils to darken answer. 7) Use only black/blue ball point pen to darken the appropriate circle. 8) No change will be allowed once the answer is marked on OMR Sheet. 9) Rough work shall not be done on OMR sheet or on question paper. 10) Darken ONLY ONE CIRCLE for each answer.

Q.no 1. which of the following is latest technology A : Manual Prototyping B : Virtual Prototyping C : soft prototyping D : Rapid Prototyping Q.no 2. Shear spinning is also known as A : Flow spinning B : Spin forging C : All of above D : None of the above Q.no 3. Full Form of EBM in additive Manufacturing A : Electron Beam Melting https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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B : Electron Beam Machining C : Electric beam machining D : Electron Beam Method Q.no 4. What are the voltage values used in the STEM process? A:1–4V B : 8-14 V C : 16-24 V D : 28-34 V Q.no 5. Which one of additive manufacting processes uses solid stock as the starting material A : ballistic particle manufacturing B : fused Deposition Modelling C : Light Object Manufacturing D : Sterelithography Q.no 6. What is the full form of ECG in the advanced machining processes? A : Electro cardio graph B : Electro chemical grinding C : Electro chemical grooving D : Electric cathode grinding Q.no 7. Which of the following process is called as high rate energy forming. A : Explosive forming B : Electron beam cutting C : Redrawing D : Shear spinning Q.no 8. The grinding wheel used in the ECG process is of which charge given below? A : Positive charge B : Negative charge https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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C : Neutral charge D : All of the mentioned Q.no 9. Which is first step in additive manufacturing processes A : 3D Model creation B : STL file Creation C : STL file Transfer D : Machine Set up Q.no 10. Micro Machining has ability to produce features with the diamentions as small as A : 1nm to 999nm B : 1µm to 999µm C : 1mm to 100mm D : 100µm to 9999µm Q.no 11. Polymerization happens A : When the light of appropriate wavelength falls on liquid photopolymer B : when the light of short wavelength falls on liquid photopolymer C : when the light of appropriate wavelength falls on solid photopolymer D : when the light of appropriate wavelength falls on powder photopolymer Q.no 12. The topography of the surface is characterized by Scanning electron microscope (SEM), Atomic Force Microscope (AFM) and Scanning Tunneling Microscope (STM). A : TRUE B : FALSE C : Partially true D : Can't say Q.no 13. Diamond Micro Machining uses diamond as a cutting tool material because A : Diamond has a high coefficient of friction B : Diamond has low hot hardness https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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C : Diamond has a crystalline structure which allows to produce a very sharp cutting edges D : Diamond has high hot hardness Q.no 14. EMF is primarily used for which of the following material? A : Silver B : High carbon steel C : Chromium alloys D : Martensitic steel Q.no 15. In Ultrasonic Micro Machining, the abrasive slurry usually consists of water medium due to its A : low viscosity and low thermal conductivity B : high viscosity and high thermal conductivity C : high viscosity and low thermal conductivity D : low viscosity and high thermal conductivity Q.no 16. Why blind corners and radii should be avoided while roll forming? A : It needs an additional setup B : It is time consuming C : Skilled labour is a need for that D : Less accuracy Q.no 17. What may the hole sizes, that can be machined using STEM process? A : 0.02 – 0.3 mm B : 0.5 – 6 mm C : 8 – 20 mm D : 50 – 76 mm Q.no 18. The most common cutting method of roll forming is ____________ A : sawing B : pre-cutting https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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C : parting D : post-cutting Q.no 19. What is full name of LOM in Additive Manufacturing A : Laminated Object Manufacturing B : Laser Object Manufacturing C : Light Object Manufacturing D : Less object Manufacturing Q.no 20. Full form of STL is A : Straight -lithography B : stress-lithography C : stereo-lithography D : straight -lipsography Q.no 21. In explosive forming A : Preheating of work piece is required B : Preheating of work piece is not required C : May be or may not be Preheating of work piece is required D : None of the above Q.no 22. Ultrasonic Micro Machining is a material removal process used to_____ material. A : corrode B : erode C : melt D : form Q.no 23. Diamond micromachining is of particular interest for the A : Optical and electronics industries B : Glass industries C : tyre industries https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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D : cement industries Q.no 24. __________ is used to investigate the electrically non-conductive materials. A : Scanning electron microscope B : Transmission electron microscope C : Atomic force microscope D : Scanning tunneling microscope Q.no 25. Which of the following is typically the cheapest type of additive manufacturing processes A : Fused Deposition Modelling B : sterelithography C : Selective Laser Sintering D : Solid ground curing Q.no 26. Manufacturing process where an object is created by successively layering sheets of build material ,bonding them through heat and pressure and then cutting into desired shape A : Laminated Object Manufacturing B : Fused Deposition Modelling C : Selective Laser Sintering D : Sterelithography Q.no 27. The EMF process allows increased ductility for______________ alloys. A : Chromium – molybdenum B : Aluminium C : Nickel D : Chromium – mangnese Q.no 28. Which type of printer uses an enclose build area A : Fused Deposition Modelling B : sterelithography C : Solid ground curing https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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D : Selective Laser Sintering Q.no 29. Scanning electron produces __________ image. A : 2-dimensional B : 3-dimensional C : Scattered D : Bitmap Q.no 30. Size of the abrasive particles used in Ultrasonic Micro Machining varies in the range A : 2000 to 20000 grit B : 200 to 2000 grit C : 2 to 200 grit D : 4000 to 20000 grit Q.no 31. _____________ used for imaging of the surface at the atomic level. A : Scanning electron microscope B : Transmission electron microscope C : Atomic force microscope D : Optical microscope Q.no 32. Which of the following is appropriate characteristics or application for High Energy rate forming process A : Only Female die is needed B : magnetic pulse forming C : pivoted pointer D : flower Design Q.no 33. The composition and structure of the material can be characterized by identifying A : Topography B : Elemental composition C : Bulk structure and composition https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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D : All of the above Q.no 34. The maximum resolution in SEM depends ______________. A : electron beam size B : accelerating voltage C : interaction area between elctron beam and surface. D : All of the above Q.no 35. Which of the following electrolytes are used for machining purpose in ECG? A : Sodium nitrate B : Hydro Chloric acid C : Nitric acid D : Potassium permanganate Q.no 36. Which of the following is true about EMF process? A : Intense electric field is produced using capacitors and coils B : Heavy current is made to flow through the work piece C : Intense magnetic field is produced for few microseconds D : Principle of electromagnetic induction is used to pre-heat the work piece Q.no 37. For Addittive manufacturing 3D CAD model should be converted into which file. A : SGC B : SLA C : STL D : SLS Q.no 38. Ratio of diameter of blank to diameter of mandrel is defined as A : feed ratio B : spinning ratio C : spindle speed D : None of the above https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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Q.no 39. _______ is used to identify the image of interior cells of a biological specimen, the structure of protein molecules A : Inverted microscope B : Optical microscope C : Transmission electron microscope D : Scanning electron microscope Q.no 40. ______ is used to identify secondary electron signals and identify the image of the surface. A : Condenser lenses B : Computer display C : Electromagnetic lenses D : Electron detector Q.no 41. Atomic Force Microscope was invented by _________ along with Calvin Quate and Christoph Gerber A : Max Knoll B : Gerd Binnig C : Manfred Ardenne D : Ernst Rusca Q.no 42. In________ mode of scanning tunneling microscope, tunneling current is kept constant by adjusting the tip height of the stylus. A : Constant voltage mode B : Constant current mode C : Constant height mode D : Constant width mode Q.no 43. Which of the following is used as base material in Stareolithography process A : Thermoplastic,Metal powder B : Thermoplastic ,Eutectic Metals C : photopolymer https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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D : Titanium alloys Q.no 44. Post-cut roll forming production speeds are ______________ A : 100 to 180 feet per minute B : 650 to 780 feet per minute C : 800 to 900 feet per minute D : up to 100 feet per minute Q.no 45. Which of the following example of appropriate application of additive manufacturing in the actual production of parts and products A : Casting made in small quantites B : special textile products C : plastic parts in small batch sizes D : parts with complex gometries Q.no 46. _________ is a non-contact type stylus profilometer in which a sharp tip is mounted on a flexible cantilever beam. A : Transmission electron microscope B : Optical microscope C : Scanning electron microscope D : Atomic force microscope Q.no 47. The principle which is used for converting electrical energy into mechanical energy in Ultrasonic Micro Machining is A : Faraday's law B : Stefan's law C : Piezoelectric effect D : Thomson's law Q.no 48. During Ultrasonic Micro Machining __________ is converted into mechanical vibrations. A : pressure energy of the slurry B : electrical energy https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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C : chemical energy of the chemical used for the slurry D : mechanical energy of the tool Q.no 49. Scanning Tunneling Microscope works on the measurement of _____________. A : Scattering of electron from specimen to the surrounding B : Transmission of electron from specimen to the surrounding C : Tunneling current flow between the stylus tip and specimen surface D : Deflection of cantilever beam Q.no 50. Choose the correct sequence to generate prototype A : 3D CAD data-CAD solidmodel-STL file-RP prototype B : CAD solid model-3D CAD data-Rp prototype-STL files C : STL file-3D CAD data -CAD solid Model-Rp prototype D : 3D CAD data-STL file -CAD solid Model-Rp prototype Q.no 51. The location of the critical chip thickness during Diamond micromachining is dependent on A : cutting speed B : depth of cut C : feed D : nose radius of tool Q.no 52. Which of the following pumps is used in Ultrasonic Micro Machining? A : Re‐circulating pump B : Centrifugal pump C : Vane pump D : Reciprocating pump Q.no 53. Atomic Force Microscope was invented in the Year_____. A : 1986 B : 2011 https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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C : 1999 D : 2016 Q.no 54. Identify the correct statements from following for Transmission electron microscope (TEM). 1) Electrons transmitted through the sample, 2) TEM provides an internal composition of the material, 3) TEM having high resolution than SEM and 4) Imaging formatio A : 1, 2, 3 and 4 are correct B : 2 and 4 are correct C : 2, 3 and 4 are correct D : 1, 2 and 3 are correct Q.no 55. Atomic force microscopy works on the principle of _______. A : deflection of probe tip by the attraction or repulsion by the surface B : transmission of electrons from the surface of conductive material C : diffraction of electrons from the surface of conductive material D : measurement of tunneling current flow between the stylus tip and specimen surface Q.no 56. ________________ is used to protect the remaining area of the wafer while machining. A : Tin foil B : Wood C : Photoresist layer D : Sodium bicarbonate Q.no 57. The velocity range for HERF process is A : 0.03 m/s B : 0.24 to 4.2 m/s C : 20 to 228 m/s D : 0.03 to 0.73 m/s Q.no 58. Thermal effects in Diamond turning are minimised due to A : low thermal conductivity of Diamond tool B : low coefficient of friction, and low thermal conductivity of Diamond tool https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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C : high coefficient of friction, and high thermal conductivity of Diamond tool D : low coefficient of friction, and high thermal conductivity of Diamond tool Q.no 59. Which of the following process is suitable for making injection molding tools A : stereo-lithography B : Selective Laser Sintering C : Electron beam melting D : Fused Deposition Modelling Q.no 60. Which of the following are problems with the current rapid prototyping and additive manufacturing technologies A : Limited material variety B : inability to convert a solid part into layers C : poor machinability of the starting material D : the inability of the desidner to design the part Q.no 1. A computer controlled process that creates three dimensional object by depositingmaterials usally in layers A : 3D printing B : welding C : Forming D : Rolling Q.no 2. Scanning electron microscopes is used when the surface feature cannot be resolved using an optical microscope. A : TRUE B : FALSE C : Partially true D : Can't say Q.no 3. Diamond micromachining is used to produce A : large workpiece features,by means of tools with cutting features above 100µm

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B : small workpiece features,by means of tools with cutting features below 100µm C : small workpiece features,by means of tools with cutting features above 100µm D : large workpiece features,by means of tools with cutting features below 100µm Q.no 4. What are the limitations of STEM process? A : Used for corrosion resistant materials B : Hazardous waste is generated C : Complex machining and tooling systems D : All of the mentioned Q.no 5. Optical microscope is used when the surface feature cannot be resolved using an Scanning electron microscope (SEM). A : TRUE B : FALSE C : Partially true D : Can't say Q.no 6. The scanning electron microscope has magnification capacity upto ________. A : 100X B : 500X C : 500000X D : 200X Q.no 7. Why spacers are used in roll forming machines? A : To prevent the spring back of the material B : To fix the rolls in exact position C : To accommodate specific material thickness by adjusting the height D : To support the shaft Q.no 8. Which of the following is not subtractive process A : Milling https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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B : Sterelithography C : sawing D : EDM Q.no 9. In transmission electron microscope electron beam transmits through the sample surface. A : TRUE B : FALSE C : Partially true D : Can't say Q.no 10. Which of the following are the advantages of STEM? A : Depth to diameter ratio of 300 B : Non parallel holes can be drilled C : No recast layer D : All of the mentioned Q.no 11. What does 3D mean A : 3 Designs B : 3 dimensions C : 3 images D : 3 parts Q.no 12. Which of the following Additive manufacturing is not developed by 3D system A : selective Laser Sintering B : Multi-jet modelling system C : paper Lamination technology D : Sterelithography Q.no 13. Full form or RP in Additive Manufacturing A : Rapid Prototyping B : Rapid Product https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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C : Rapid Production D : Rapid Process Q.no 14. In HERF high energy is applied for __________ interval of time. A : Short B : Long C : Medium D : None of the above Q.no 15. What are the values of pressures used for electrolyte in STEM? A : 10 – 100 kPa B : 150 – 250 kPa C : 275 – 500 kPa D : 600 – 750 kPa Q.no 16. Which statement is correct for HERF A : Die costs are relatively lower B : No or minimum spring back effect on the material after the process C : Complex shapes / profiles can be made much easily, as compared to conventional forming D : All of above Q.no 17. Which material is not available for Laminated Object Manufacturing A : Paper B : Plastic C : Metal D : Glass Q.no 18. Which of the following methods of forming is not the part of electromagnetic forming? A : Compression B : Expansion C : Shearing https://sppu.wheebox.com/WAC-3/allqusdownloadhtml.ils?testNo=3020&code=1052000&showTest=319&actForm=edit&set=15

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