Unconventional Machine Process Set 10

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This set of Unconventional Machine Process (UMP) Multiple Choice Questions & Answers (MCQs) focuses on Unconventional Machine Process Set 10

Q1 | Which of the following are the applications of Electro discharge machining?
  • holes
  • slots
  • texturing
  • all of the mentioned
Q2 | Which type of electrode is used for drilling in Electro discharge machining?
  • flat electrode
  • cuboidal electrode
  • tubular electrode
  • spherical electrode
Q3 | The dielectric fluid is flushed in thorough which part of the electrode in drilling in EDM?
  • interior hole
  • side gaps
  • all of the mentioned
  • none of the mentioned
Q4 | Which type of holes can be produced through drilling using Electro discharge machining?
  • irregular
  • curved
  • tapered
  • all of the mentioned
Q5 | What are the values of general feed rates used for drilling in EDM?
  • 0.1 mm/min
  • 0.3 m/min
  • 0.5 mm/min
  • 0.7 mm/min
Q6 | 10 to 0.50 mm.
  • 0.01 to 0.05 mm
  • 0.1 to 0.5 mm
  • 1 to 5 mm
  • 10 to 15 mm
Q7 | Electro discharge sawing is an application of EDM which employs                      as tool material.
  • steel band
  • disc
  • steel band & disc
  • none of the mentioned
Q8 | When compared to the conventional abrasive sawing, how many times faster is the MRR?
  • twice
  • thrice
  • four
  • five
Q9 | How much amount of burr is produce while machined using Electro discharge sawing?
  • 10%
  • 20%
  • 50%
  • no burr
Q10 | 3 to 10 µm when machined using Electro discharge sawing.
  • 0.001 to 0.022 mm
  • 0.025 to 0.130 mm
  • 0.236 to 0.352 mm
  • 0.432 to 0.568 mm
Q11 | Which of the following electrodes are used for machining spherical surfaces in Electro discharge machining?
  • tubular electrodes
  • flat electrodes
  • cuboidal electrodes
  • all of the mentioned
Q12 | What are the values of dimensional accuracy obtained while machining spherical surfaces?
  • ± 1 µm
  • ± 3 µm
  • ± 5 µm
  • ± 7 µm
Q13 | What are the surface roughness values obtained while machining spherical surfaces using Electro discharge machining?
  • <0.1 µm
  • <0.3 µm
  • <0.5 µm
  • <0.7 µm
Q14 | Which motion of tool is used for machining spherical surfaces in Electro discharge machining?
  • oscillatory
  • vibratory
  • rotary
  • all of the mentioned
Q15 | Which type of electrodes are used for milling application in Electro discharge machining process?
  • tubular type electrodes
  • cylindrical type electrodes
  • flat type electrodes
  • spherical type electrodes
Q16 | Which type of cavities can be machined using milling process by Electro discharge machining?
  • complex cavities
  • simple cavities
  • simple & complex cavities
  • none of the mentioned
Q17 | The simple electrodes are rotated at which speed for milling of work pieces in Electro discharge machining?
  • very low
  • low
  • medium
  • high
Q18 | What happens to the dielectric flushing while milling tool is rotated at a high speed in EDM?
  • improved
  • worsen
  • reduced
  • all of the mentioned
Q19 | Which of the following are the steps included in the die sinking process of EDM?
  • cad of electrode
  • electrode manufacturing
  • programming for die sinking
  • all of the mentioned
Q20 | Which path of the components in wire EDM determines the path to be machined?
  • horizontal worktable movement
  • vertical worktable movement
  • horizontal & vertical worktable movement
  • none of the mentioned
Q21 | Which of the following materials are machined using Wire Electro discharge machining?
  • polycrystalline diamond
  • cubic boronitride
  • matrix composites
  • all of the mentioned
Q22 | How much amount of burr is produce when we use Wire Electro discharge machining for machining of work pieces?
  • 10%
  • 20%
  • no burr
  • small amount
Q23 | Which of the following industries use wire EDM for different applications?
  • chemical industry
  • aerospace industry
  • automobile industry
  • all of the mentioned
Q24 | While machining insulating ceramic materials using EDM, where is the sheet metal placed?
  • over material
  • below material
  • under material
  • none of the mentioned
Q25 | Sparks occur between which of the following components?
  • work piece and sheet metal
  • tool electrode and sheet metal
  • work piece and electrode
  • none of the mentioned