Design for Manufacturing Mid - I, September - 2014

1.Designing for economical production is avoid_________
  • Fillets
  • Sharp corners
  • Radii
  • A & B
Answer: B
2.Evaluation meant for ___________________
  • Reduction in cost
  • Increasing reliability
  • Improve performance
  • All of the above
Answer: D
3.In turning operation the machining time is -------- to the sq root of the surface finish
  • Inversely proportional
  • Directly Proportional
  • Equal
  • Not Equal
Answer: A
4.In casting the minimum recommended height of bosses is _____ mm for castings with overall dimensions up to 500mm.
  • 5 mm
  • 5 to 10mm
  • 10 to 15 mm
  • 15 to 20 mm
Answer: A
5.Write the expression for solidification time for casting
  • T= LVρ/(hA(Ѳ12))
  • T= LVρ/(hA(Ѳ1- Ѳ2))
  • T= Vρ/(hA(Ѳ12))
  • T= LV/(hA(Ѳ12))
Answer: A
6.In investment casting the pattern is made up of
  • Cast Iron
  • Wax
  • Wood
  • None
Answer: B
7.In the product alternations if 3 design aspects, 3 material aspects and 3 process aspects is considered independently can leads to __________ possible combinations
  • 3
  • 9
  • 18
  • 27
Answer: D
8.__________the design philosopher proposed feasibility study, preliminary design, Detailed design phase, as three phases of design and flowcharting
  • Colonel Renard
  • Marris Asimov
  • RC Johnson
  • Da-vinci
Answer: B
9.Shear plane angle Ø, rack angle α , of the tool and the friction angle ß, at the chip tool interface and the machinability C then Dr. Merchant expression is
  • 2(Ø+ ß +α) =C
  • (2Ø+ ß +α) =C
  • (2Ø+ ß-α) =C
  • None
Answer: C
10.The Multi Variable charts grid, the starting columns ___ parameters for selection of material
  • Geometric form
  • Surface Finish
  • Production Volume
  • None
Answer: A
11.According to American Standard association ___________________________are defined as a series of numbers selected to be used for standardization purpose in preference to the other numbers.
Answer: Preferred numbers
12.__________________________________is the analysis and redesign of a product or concept to make it easier to produce.
Answer: Design for Manufacturing
13.A full model of the real product made by the engine, before going into large scale production of any major production is called ________________
Answer: Prototype
14._______________is a method for strengthening and stiffening in which a flat sheet is curved into waves to increase the moment of inertia.
Answer: Corrugation
15.According to principle of machinability feed motion along the _______________and cutting motion is along genetrix.
Answer: Directrix
16.Industrial Engineers used for combining two dimensional matrix in one dimensional chart is known as________________
Answer: Multi variable chart
17.What are the types of design work 1________, 2._________, 3,________
Answer: 1.Adaptive, 2.Variant, 3.Creative
18.What are the basics of materials selection process_____________________
Answer: Primary shaping, Secondary shaping
19.The solidification time for sand casting (t)_______________
Answer: C(V/A)2
20.At the apex of the corner, the wall thickness should be __________percent less than the thickness of the adjoining walls.
Answer: 20 to 25