Question 11 : Rise in different parameters related to the MS and ECD lead to ______ material removal rates.
1. Increase in
2. Decrease in
3. Normal
4. All of the mentioned
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Question 12 : High electro chemical dissolutions occur at which type of current densities?
1. Very Low
2. Low
3. Moderate
4. High
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Question 13 : Which of the following affect the process performance of Mechanical scrubbing?
1. Stone pressure
2. Oscillating frequency
3. Amplitude
4. All of the mentioned
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Question 14 : Which of the following are the process variables related to ECS?
1. Gap voltage
2. Electrolyte type
3. Concentration
4. All of the mentioned
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Question 15 : What are the values of roundness and straightness obtained from machining using ECS?
1. 0.001 mm
2. 0.003 mm
3. 0.007 mm
4. 0.013 mm
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Question 16 : What are the tolerance values obtained in the ECS process?
1. ± 0.003 mm
2. ± 0.013 mm
3. ± 0.023 mm
4. ± 0.033 mm
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Question 17 : MRR are reduced by how much amount in the presence of the oxide film?
1. 10 %
2. 30 %
3. 50 %
4. 70 %
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Question 18 : How much amount of burr is produced in the process of ECS?
1. 10 %
2. 20 %
3. 50 %
4. No burr produced
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Question 19 : Which of the mechanisms combine to form this hybrid process of ECS?
1. Electro chemical dissolution
2. Mechanical scrubbing
3. All of the mentioned
4. None of the mentioned
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Question 20 : What is the full form of ECS in the advanced machining processes?
1. Electro chemical superfinishing
2. Electro chemical scribing
3. Electron cluster scribing
4. Electron cluster superfinishing
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