Unconventional Machine Process Set 6

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This set of Unconventional Machine Process (UMP) Multiple Choice Questions & Answers (MCQs) focuses on Unconventional Machine Process Set 6

Q1 | If there is an increase in viscosity of slurry, what happens to MRR?
  • increases
  • decreases
  • remains same
  • none of the mentioned
Q2 | How much percent of the abrasives are recommended in general for abrasive medium?
  • 10 – 15 %
  • 15 – 20 %
  • 25 – 30 %
  • 30 – 35 %
Q3 | Machining rate can be affected by the ratio of hardness of tool to that of hardness of work piece.
  • true
  • false
Q4 | As the tool area increases, what happens to MRR?
  • decreases
  • increases
  • remains same
  • none of the mentioned
Q5 | When the static pressure of the feed is increases, what happens to MRR?
  • increases
  • decreases
  • increase up to a limiting condition
  • decrease up to a limiting condition
Q6 | Which of the following distribution factors, does not affect the machining parts?
  • side wear of tool
  • abrasive wear
  • accurate feed
  • form error of tool
Q7 | Which one of the following factors affects the accuracy of parts?
  • steady abrasive flow
  • accurate feed
  • unsteady abrasive flow
  • ultrasonic frequency
Q8 | While machining W4C and glass, tool over cut size when compared to mean grain size is?
  • two times greater
  • two times smaller
  • three times greater
  • three times smaller
Q9 | While machining B4C, tool over cut size when compared to mean grain size is?
  • two times greater
  • two times smaller
  • three times greater
  • three times smaller
Q10 | Conicity resulting after machining by Ultrasonic Machining can be reduced by?
  • direct injection of slurry
  • tools having negative taper
  • high static pressure
  • all of the mentioned
Q11 | Which of the following factors affect the surface finish of machined parts in Ultrasonic Machining?
  • amplitude
  • material
  • tool surface
  • all of the mentioned
Q12 | When the viscosity of liquid carrier is increased, the surface quality of the parts?
  • increased
  • decreased
  • remained same
  • none of the mentioned
Q13 | Ultrasonic Machining can be used for which of the following processes and applications?
  • drilling
  • sinking and contouring
  • polishing
  • all of the mentioned
Q14 | Drilling in Ultrasonic Machining is done, by which motion of the tool?
  • only rotation
  • only oscillation
  • oscillation and rotation
  • none of the mentioned
Q15 | In which of the following materials, Rotary Ultrasonic Machining can be used to drill holes through them?
  • glass
  • alumina
  • ferrite
  • all of the mentioned
Q16 | On which of the following features of cavity, will the penetration depth depend on?
  • depth
  • diameter
  • size
  • all of the mentioned.
Q17 | What is the value of depth in Ultrasonic sinking, after which, material removal becomes difficult?
  • 1 to 2 mm
  • 2 to 5 mm
  • 5 to 7 mm
  • 7 to 10 mm
Q18 | In production of EDM electrodes, typical ultrasonic speeds, in graphite ranges between?
  • 0.01 – 0.10 cm/min
  • 0.10 – 0.25 cm/min
  • 0.25 – 0.40 cm/min
  • 0.40 – 1.40 cm/min
Q19 | How much is the value of surface finished, achieved using Ultrasonic Polishing?
  • 0.1 μm
  • 0.3 μm
  • 0.5 μm
  • 0.7 μm
Q20 | In Micro-Ultrasonic Machining, which of the following component vibrates?
  • tool
  • work piece
  • feed pipe
  • all of the mentioned
Q21 | In Micro-USM, using WC tool, what is the value of diameter can be achieved?
  • 1 μm
  • 3 μm
  • 5 μm
  • 7 μm
Q22 | In advanced machining processes, what is the full form of EDM?
  • electro discharge machining
  • electro discharge manufacturing
  • electrical dimensioning machining
  • electrode dimensions manufacturing
Q23 | Machining speeds have gone up to how many times after the invention of EDM?
  • ten
  • twenty
  • thirty
  • fifty
Q24 | After invention of EDM, surface finish have improved by how much factor?
  • 10
  • 15
  • 20
  • 25
Q25 | Cavities with, which of the following factors can be produced using Electro discharge machining?
  • thin walls
  • fine features
  • thin walls & fine features
  • none of the mentioned