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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