75 + Interview Questions in Hybrid Electrochemical Processes in Advanced Machining Page 1 InterviewSolution

1.	What are the values of the current densities used in ECB process?(a) 0.01 – 0.7 A/cm^2(b) 0.1 – 7 A/cm^2(c) 1 – 14 A/cm^2(d) 21 – 42 A/cm^2This question was addressed to me by my college professor while I was bunking the class.My doubt stems from Electrochemical Buffing-Introduction, Material Removal topic in division Hybrid Electrochemical Processes of Advanced Machining
Answer» CORRECT OPTION is (B) 0.1 – 7 A/cm^2 Best EXPLANATION: The current densities used in the process of ECB range between 0.1 and 7 A/cm^2.

Discussion

2.	How much faster is MRR in ECH when compared to the conventional internal grinding?(a) 2 times(b) 4 times(c) 6 times(d) 8 timesI have been asked this question by my school principal while I was bunking the class.Question is from ECH-Process Characteristics, Applications in section Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct CHOICE is (b) 4 times For explanation: Material removal rate in ECH is nearly 4 times faster than that of the INTERNAL CYLINDRICAL GRINDING.

Discussion

3.	Surface finish in ECG depend on which of the following factors?(a) Metal machined(b) Abrasive size(c) Wheel speed(d) All of the mentionedI got this question in an interview.The doubt is from ECG-Accuracy, Applications, Advantages and disadvantages topic in section Hybrid Electrochemical Processes of Advanced Machining
Answer» RIGHT option is (d) All of the mentioned To EXPLAIN I would say: Surface finish in ECG process depend on METAL being machined, ABRASIVE GRIT size, wheel speed and feed rate.

Discussion

4.	The tolerance values in ECG depend on which of the following factors?(a) Electrolyte flow(b) Feed rate(c) Metallurgy of material(d) All of the mentionedThe question was asked during an interview.The question is from ECG-Accuracy, Applications, Advantages and disadvantages topic in section Hybrid Electrochemical Processes of Advanced Machining
Answer» Correct option is (d) All of the mentioned The explanation: The tolerance VALUES DEPEND on the ELECTROLYTE FLOW, feed rate and the METALLURGY of work piece.

Discussion

5.	What is the full form of ECG in the advanced machining processes?(a) Electro cardio graph(b) Electro chemical grinding(c) Electro chemical grooving(d) Electric cathode grindingI got this question in final exam.I'm obligated to ask this question of Electrochemical Grinding-Introduction topic in portion Hybrid Electrochemical Processes of Advanced Machining
Answer» The CORRECT answer is (b) ELECTRO chemical grinding To explain I would SAY: The FULL form of ECG in the advanced machining processes is Electro chemical grinding.

Discussion

6.	Which type of voltages are recommended for closer tolerances in ECG?(a) Low(b) Moderate(c) High(d) Very highThis question was posed to me at a job interview.I'd like to ask this question from ECG-Accuracy, Applications, Advantages and disadvantages in chapter Hybrid Electrochemical Processes of Advanced Machining
Answer» Correct answer is (a) Low Explanation: Lower VOLTAGES are RECOMMENDED for closer tolerances, reduced overcut, SHARP EDGES and bright surface finish in the process of Electro chemical GRINDING.

Discussion

7.	Rise in different parameters related to the MS and ECD lead to ___________ material removal rates.(a) Increase in(b) Decrease in(c) Normal(d) All of the mentionedThe question was posed to me in an interview.My question comes from Electrochemical Superfinishing-Introduction, Material Removal, Process accuracy topic in portion Hybrid Electrochemical Processes of Advanced Machining
Answer» Correct CHOICE is (a) Increase in Easiest explanation: A RISE in the scrubbing speed, VOLTAGE, and duty cycle WOULD lead to an increase in MRR.

Discussion

8.	What are the values of voltages used for better surface quality?(a) 1 – 2 V(b) 2 – 3 V(c) 3 – 5 V(d) 5 – 8 VThe question was posed to me in examination.This intriguing question originated from ECG-Accuracy, Applications, Advantages and disadvantages topic in division Hybrid Electrochemical Processes of Advanced Machining
Answer» Correct answer is (C) 3 – 5 V Explanation: VOLTAGES ranging between 3 and 5 V can be USED for better surface QUALITY in ECG.

Discussion

9.	What are the production tolerances obtained in ECG process?(a) ± 0.005 mm(b) ± 0.015 mm(c) ± 0.025 mm(d) ± 0.035 mmI had been asked this question by my school teacher while I was bunking the class.Question is from ECG-Accuracy, Applications, Advantages and disadvantages topic in division Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct choice is (C) ± 0.025 MM Best explanation: The production tolerances OBTAINED by machining USING Electro chemical grinding process is about ± 0.025 mm.

Discussion

10.	Under special circumstances what are the tolerances obtained?(a) ± 0.02 mm(b) ± 0.04 mm(c) ± 0.06 mm(d) ± 0.08 mmThe question was posed to me at a job interview.My question comes from ECG-Accuracy, Applications, Advantages and disadvantages in portion Hybrid Electrochemical Processes of Advanced Machining
Answer» Right CHOICE is (d) ± 0.08 mm The EXPLANATION: The TOLERANCE values of about ± 0.08 mm are obtained under special CIRCUMSTANCES in Electro CHEMICAL grinding.

Discussion

11.	The grinding wheel is _________ and the work piece is ________ in ECG process.(a) Cathode, anode(b) Anode, cathode(c) Cathode, cathode(d) Anode, anodeThe question was posed to me during an online exam.This interesting question is from ECG-Material Removal Rate topic in chapter Hybrid Electrochemical Processes of Advanced Machining
Answer» The CORRECT option is (a) Cathode, ANODE To elaborate: The GRINDING wheel is cathode and the work piece is anode in the Electro chemical grinding process.

Discussion

12.	What are the values of contact pressures used in ECB process?(a) 1 – 6 g(b) 10 – 60 g(c) 100 – 600 g(d) 1000 – 6000 gI got this question in semester exam.This interesting question is from Electrochemical Buffing-Introduction, Material Removal topic in portion Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct answer is (c) 100 – 600 g The explanation: The values of contact PRESSURE used in the ECB PROCESS are between 100 and 600 g.

Discussion

13.	How much faster is MRR in ECH when compared to the conventional honing?(a) 1 to 2 times(b) 2 to 3 times(c) 3 to 5 times(d) 5 to 8 timesThe question was posed to me in homework.The doubt is from ECH-Process Characteristics, Applications topic in chapter Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct answer is (c) 3 to 5 TIMES To elaborate: MRR in ECH is nearly 3 to 5 times FASTER than conventional honing.

Discussion

14.	Mechanical abrasion counts to how much amount of the material removal in ECG?(a) 1 to 5%(b) 5 to 10%(c) 10 to 15%(d) 15 to 20%This question was posed to me in an interview for internship.I'd like to ask this question from ECG-Material Removal Rate in section Hybrid Electrochemical Processes of Advanced Machining
Answer» Correct option is (b) 5 to 10% The best I can explain: Material REMOVAL through ABRASION counts to 5 to 10% of the TOTAL material REMOVED.

Discussion

15.	Electro chemical grinding is ___________ Electro chemical machining.(a) Superior to(b) Inferior to(c) Similar to(d) None of the mentionedThis question was addressed to me during an interview.This interesting question is from Electrochemical Grinding-Introduction in section Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct CHOICE is (c) Similar to The explanation: The PROCESS of ELECTRO chemical grinding is similar to that of ECM except the cathode is a constructed grinding wheel.

Discussion

16.	What is the full form of ECS in the advanced machining processes?(a) Electro chemical superfinishing(b) Electro chemical scribing(c) Electron cluster scribing(d) Electron cluster superfinishingI got this question during an online exam.I'd like to ask this question from Electrochemical Superfinishing-Introduction, Material Removal, Process accuracy topic in portion Hybrid Electrochemical Processes of Advanced Machining
Answer» Right OPTION is (a) Electro CHEMICAL superfinishing Easy EXPLANATION: The full form of ECS in the ADVANCED machining processes is Electro chemical superfinishing.

Discussion

17.	What are the voltage values used in the process of ECH?(a) 0.1 to 1 V(b) 1 to 5 V(c) 6 to 30 V(d) 40 to 80 VThis question was posed to me in a national level competition.This intriguing question comes from Electrochemical Honning-Introduction topic in section Hybrid Electrochemical Processes of Advanced Machining
Answer» Correct option is (C) 6 to 30 V To explain I would SAY: The voltage VALUES used in ECH range from 6 to 30 V.

Discussion

18.	ECH has __________ material removal rates than conventional honing or the internal cylindrical grinding.(a) Lower(b) Higher(c) Same(d) All of the mentionedThis question was posed to me in quiz.My enquiry is from Electrochemical Honning-Introduction topic in division Hybrid Electrochemical Processes of Advanced Machining
Answer» Right choice is (b) Higher The EXPLANATION is: ELECTRO CHEMICAL honing has higher material removal rates than conventional honing and the INTERNAL CYLINDRICAL grinding processes.

Discussion

19.	What are the values of current densities used in the ECG process?(a) 1 to 60 A/cm^2(b) 60 to 120 A/cm^2(c) 120 to 240 A/cm^2(d) 240 to 480 A/cm^2This question was addressed to me in homework.My query is from ECG-Material Removal Rate in section Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct choice is (c) 120 to 240 A/cm^2 The explanation: The VALUES of CURRENT DENSITIES range from 120 to 240 A/cm^2.

Discussion

20.	What are the values of radii of corners obtained in ECG?(a) 0.15 to 0.225 mm(b) 0.25 to 0.375 mm(c) 0.45 to 0.525 mm(d) 0.55 to 0.675 mmI had been asked this question at a job interview.I'd like to ask this question from ECG-Accuracy, Applications, Advantages and disadvantages topic in chapter Hybrid Electrochemical Processes of Advanced Machining
Answer» RIGHT CHOICE is (b) 0.25 to 0.375 mm The explanation is: The values of radii of CORNER RANGE from 0.25 to 0.375 mm.

Discussion

21.	Which of the following affect the process performance of Mechanical scrubbing?(a) Stone pressure(b) Oscillating frequency(c) Amplitude(d) All of the mentionedI had been asked this question during an online exam.This interesting question is from Electrochemical Superfinishing-Introduction, Material Removal, Process accuracy in portion Hybrid Electrochemical Processes of Advanced Machining
Answer» The CORRECT option is (d) All of the mentioned Explanation: Stone pressure, oscillating frequency and amplitude AFFECT the mechanical scrubbing in the PROCESS of Electro chemical superfinishing.

Discussion

22.	What is the value of pressure of the electrolytic solution in ECH process?(a) 1 kPa(b) 10 kPa(c) 100 kPa(d) 1000 kPaI have been asked this question in an online quiz.This interesting question is from Electrochemical Honning-Introduction in division Hybrid Electrochemical Processes of Advanced Machining
Answer» CORRECT option is (d) 1000 kPa The explanation is: The value of the pressure of the electrolytic solution maintained in ELECTRO CHEMICAL PROCESS is about 1000 kPa.

Discussion

23.	What are the values of surface speeds at which the wheel rotates?(a) 5 to 15 m/s(b) 10 to 20 m/s(c) 20 to 35 m/s(d) 40 to 60 m/sI had been asked this question in homework.This interesting question is from Electrochemical Grinding-Introduction topic in division Hybrid Electrochemical Processes of Advanced Machining
Answer» CORRECT answer is (c) 20 to 35 m/s Best EXPLANATION: The speeds USED in ECG will range from 20 to 35 m/sec.

Discussion

24.	What are the values of current used in ECG?(a) 1 to 50 A(b) 50 to 300 A(c) 300 to 600 A(d) 600 to 1000 AI have been asked this question in unit test.My enquiry is from Electrochemical Grinding-Introduction in section Hybrid Electrochemical Processes of Advanced Machining
Answer» CORRECT choice is (C) 300 to 600 A Easiest EXPLANATION: The values of CURRENT in Electro chemical grinding range from 50 to 300 A.

Discussion

25.	Which of the following mentioned below are utilized in the ECG process?(a) Electrolytic solution(b) Abrasive grinding wheel(c) Work piece(d) All of the mentionedI got this question in a national level competition.My question is from Electrochemical Grinding-Introduction topic in chapter Hybrid Electrochemical Processes of Advanced Machining
Answer» The CORRECT OPTION is (d) All of the mentioned For explanation: Electro CHEMICAL grinding UTILIZES the abrasive grinding wheel, the ELECTROLYTIC solution and the work piece.

Discussion

26.	MRR are reduced by how much amount in the presence of the oxide film?(a) 10 %(b) 30 %(c) 50 %(d) 70 %I have been asked this question by my school teacher while I was bunking the class.I want to ask this question from Electrochemical Superfinishing-Introduction, Material Removal, Process accuracy topic in division Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct choice is (c) 50 % Explanation: MATERIAL removal RATES are reduced by 50 % in the presence of the film in Electro CHEMICAL superfinishing.

Discussion

27.	The machining system employs which type of abrasive stone for removal of material?(a) Pulsating(b) Vibrating(c) Reciprocating(d) All of the mentionedThis question was posed to me in class test.This interesting question is from ECH-Process Characteristics, Applications in chapter Hybrid Electrochemical Processes of Advanced Machining
Answer» Right option is (C) RECIPROCATING Easy explanation: The machining SYSTEM of the Electro chemical HONING process employs a reciprocating abrasive stone for the REMOVAL of material.

Discussion

28.	What is the flow rate of the electrolytic solution used in ECH process?(a) 85 L/min(b) 95 L/min(c) 105 L/min(d) 115 L/minI got this question during an online interview.My doubt is from Electrochemical Honning-Introduction topic in portion Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct ANSWER is (b) 95 L/min The explanation is: The RATE of the electrolytic SOLUTION used in Electro chemical honing process is about 95 L/min.

Discussion

29.	Tool reciprocation can be used to reduce which of the following effects on work piece?(a) Taper(b) Waviness(c) Taper & Waviness(d) None of the mentionedThis question was posed to me in an international level competition.I would like to ask this question from ECH-Process Characteristics, Applications topic in chapter Hybrid Electrochemical Processes of Advanced Machining
Answer» Right OPTION is (C) Taper & Waviness To explain: The tool reciprocation in Electro CHEMICAL honing is used to reduce taper and waviness errors.

Discussion

30.	Which of the following are the disadvantages of ECG process?(a) High capital cost(b) Limited to conductive materials(c) Corrosive nature(d) All of the mentionedThis question was posed to me during an interview.The origin of the question is ECG-Accuracy, Applications, Advantages and disadvantages in chapter Hybrid Electrochemical Processes of Advanced Machining
Answer» Correct choice is (d) All of the mentioned Best explanation: High capital COST, limited to conductive materials, CORROSIVE nature etc.., are some DISADVANTAGES of ECG.

Discussion

31.	What are the volumetric removal rates that are obtained in ECG process?(a) 400 mm^3/min(b) 800 mm^3/min(c) 1600 mm^3/min(d) 3200 mm^3/minI had been asked this question in a job interview.The question is from ECG-Material Removal Rate in division Hybrid Electrochemical Processes of Advanced Machining
Answer» Right CHOICE is (c) 1600 mm^3/min To ELABORATE: The volumetric removal rates that are obtained in Electro CHEMICAL GRINDING PROCESS will be around 1600 mm^3/min.

Discussion

32.	Removal rates of ECG process are how may time to that of the conventional machining processes?(a) 2 times(b) 3 times(c) 4 times(d) 5 timesThe question was posed to me by my college director while I was bunking the class.The origin of the question is ECG-Material Removal Rate in section Hybrid Electrochemical Processes of Advanced Machining
Answer» Right option is (c) 4 times To explain: The MRR of ECG process are nearly 4 times that of the conventional MACHINING processes.

Discussion

33.	What can be the concentration of Sodium chloride used in ECB?(a) 0.1 – 0.5 g/L(b) 1 – 5 g/L(c) 10 – 50 g/L(d) 100 – 500 g/LThe question was posed to me in unit test.The doubt is from Electrochemical Buffing-Introduction, Material Removal in section Hybrid Electrochemical Processes of Advanced Machining
Answer» Correct choice is (d) 100 – 500 g/L The explanation: The CONCENTRATION of SODIUM chloride solution USED for MACHINING in ECB is about 100 – 500 g/L.

Discussion

34.	High electro chemical dissolutions occur at which type of current densities?(a) Very Low(b) Low(c) Moderate(d) HighThis question was addressed to me by my college director while I was bunking the class.I'd like to ask this question from Electrochemical Superfinishing-Introduction, Material Removal, Process accuracy topic in chapter Hybrid Electrochemical Processes of Advanced Machining
Answer» The CORRECT answer is (d) HIGH Explanation: High electro chemical dissolutions OCCUR at high current DENSITIES in the process of Electro chemical superfinishing.

Discussion

35.	What are the tolerances that are achieved using ECH process?(a) ± 0.001 mm(b) ± 0.002 mm(c) ± 0.003 mm(d) ± 0.004 mmI had been asked this question at a job interview.The doubt is from ECH-Process Characteristics, Applications in division Hybrid Electrochemical Processes of Advanced Machining
Answer» Right choice is (c) ± 0.003 mm The EXPLANATION is: The value of the TOLERANCES that are achieved during MACHINING in ECH is about ± 0.003 mm.

Discussion

36.	What is the main mechanism of material removal in Electro chemical grinding?(a) Mechanical erosion of material(b) Electro chemical dissolution(c) Melting and vaporization(d) Electron removal from materialThe question was asked by my school principal while I was bunking the class.Origin of the question is ECG-Material Removal Rate topic in division Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct CHOICE is (B) Electro CHEMICAL dissolution Easy explanation: Electro chemical grinding process REMOVES the material mainly by electro chemical dissolution.

Discussion

37.	Which of the following electrolytes are used ECB process?(a) Sodium chloride solution(b) Sodium nitrate solution(c) Sodium chloride & nitrate solution(d) None of the mentionedI have been asked this question in semester exam.Origin of the question is Electrochemical Buffing-Introduction, Material Removal topic in division Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct ANSWER is (C) SODIUM CHLORIDE & nitrate solution Explanation: Sodium chloride and sodium nitrate are the electrolytes that are used for machining purpose in the process of Electro chemical buffing.

Discussion

38.	Which of the following factors control the polishing speed in the process of ECB?(a) Current density(b) Electrolyte type(c) Work piece material(d) All of the mentionedI have been asked this question in an online quiz.My doubt stems from Electrochemical Buffing-Introduction, Material Removal topic in chapter Hybrid Electrochemical Processes of Advanced Machining
Answer» CORRECT option is (d) All of the mentioned To elaborate: The FACTORS that control the polishing speed are current density, ELECTROLYTE time, WORK piece material.

Discussion

39.	Compared to conventional mechanical buffing Electro chemical buffing is a __________(a) Slower process(b) Faster process(c) Same speed process(d) None of the mentionedThe question was asked in quiz.This question is from Electrochemical Buffing-Introduction, Material Removal topic in portion Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct OPTION is (B) Faster process Explanation: Electro chemical buffing process is a faster MACHINING process when COMPARED to the conventional mechanical buffing.

Discussion

40.	What are the advantages of machining in Electro chemical grinding?(a) Good surface quality(b) Absence of distortion(c) Longer wheel life(d) All of the mentionedThis question was addressed to me in an interview.My question is based upon ECG-Accuracy, Applications, Advantages and disadvantages topic in division Hybrid Electrochemical Processes of Advanced Machining
Answer» Correct answer is (d) All of the mentioned To EXPLAIN I would say: Good surface quality, absence of distortion, LONGER WHEEL life etc.., are some ADVANTAGES of Electro CHEMICAL grinding.

Discussion

41.	What are the values of accuracies obtained in ECG process?(a) ± 0.025 mm(b) ± 0.125 mm(c) ± 0.225 mm(d) ± 0.325 mmI had been asked this question in an interview for job.I need to ask this question from ECG-Accuracy, Applications, Advantages and disadvantages in chapter Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct CHOICE is (b) ± 0.125 mm For explanation: The ACCURACY values obtained by USING Electro chemical grinding PROCESS is about ± 0.125 mm.

Discussion

42.	Current density depends on which of the following factors?(a) Machined material(b) Gap width(c) Applied voltage(d) All of the mentionedI got this question at a job interview.This interesting question is from ECG-Material Removal Rate topic in section Hybrid Electrochemical Processes of Advanced Machining
Answer» The CORRECT CHOICE is (d) All of the mentioned Explanation: The current density values in Electro chemical grinding depend on machined material, gap WIDTH and the APPLIED VOLTAGE.

Discussion

43.	What are the tolerance value that are obtained by using ECG process?(a) ± 0.01 mm(b) ± 0.03 mm(c) ± 0.05 mm(d) ± 0.07 mmThe question was posed to me in an interview for internship.My query is from ECG-Accuracy, Applications, Advantages and disadvantages topic in portion Hybrid Electrochemical Processes of Advanced Machining
Answer» CORRECT answer is (B) ± 0.03 mm The EXPLANATION is: The tolerance VALUES that are obtained by USING Electro chemical grinding are about ± 0.03 mm.

Discussion

44.	What is the full form of ECB in the advanced machining processes?(a) Electro chemical buffing(b) Electro chemical blasting(c) Electron cluster blasting(d) Electron cluster briefingI got this question in an interview for internship.I need to ask this question from Electrochemical Buffing-Introduction, Material Removal in division Hybrid Electrochemical Processes of Advanced Machining
Answer» Correct option is (a) ELECTRO chemical BUFFING To explain I would say: The full form of ECB is Electro chemical buffing in the advanced MACHINING PROCESSES.

Discussion

45.	What is the value of electrolytic temperature maintained in ECH?(a) 18 ᵒC(b) 28 ᵒC(c) 38 ᵒC(d) 48 ᵒCThe question was asked during a job interview.Question is from Electrochemical Honning-Introduction in chapter Hybrid Electrochemical Processes of Advanced Machining
Answer» Right CHOICE is (c) 38 ᵒC The explanation is: The VALUE of the temperature of the electrolytic solution that is USED in Electro CHEMICAL honing PROCESS is about 38 ᵒC.

Discussion

46.	Majority of the material is removed in which phase of ECH?(a) Electro chemical dissolution(b) Mechanical abrasion(c) Electro chemical dissolution & Mechanical abrasion(d) None of the mentionedI have been asked this question in a national level competition.The question is from Electrochemical Honning-Introduction in portion Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct choice is (a) Electro CHEMICAL dissolution The best I can explain: Majority of the material in Electro chemical HONING is removed in electro chemical dissolution PHASE.

Discussion

47.	State whether the following statement is true or false regarding the material removal in ECG.(a) “In ECG, material removal is not continuous using abrasive.”(b) True(c) FalseI got this question at a job interview.Query is from Electrochemical Grinding-Introduction topic in portion Hybrid Electrochemical Processes of Advanced Machining
Answer» The correct choice is (B) True The best I can explain: Abrasive PARTICLES CONTINUOUSLY remove the MATERIAL products from the working area in Electro chemical GRINDING.

Discussion

48.	What are the values of roundness and straightness obtained from machining using ECS?(a) 0.001 mm(b) 0.003 mm(c) 0.007 mm(d) 0.013 mmThis question was posed to me at a job interview.My question comes from Electrochemical Superfinishing-Introduction, Material Removal, Process accuracy in division Hybrid Electrochemical Processes of Advanced Machining
Answer» CORRECT answer is (c) 0.007 mm Easy EXPLANATION: The VALUES of roundness and straightness obtained from machining by Electro chemical superfinishing process is about 0.007 mm.

Discussion

49.	What are the tolerance values obtained in the ECS process?(a) ± 0.003 mm(b) ± 0.013 mm(c) ± 0.023 mm(d) ± 0.033 mmI got this question in an internship interview.This is a very interesting question from Electrochemical Superfinishing-Introduction, Material Removal, Process accuracy in portion Hybrid Electrochemical Processes of Advanced Machining
Answer» Right OPTION is (b) ± 0.013 MM Explanation: The TOLERANCE values OBTAINED in the Electro chemical superfinishing process are about ± 0.013 mm on the diameter.

Discussion

50.	State whether the following statement is true or false regarding the process of ECH.(a) “In ECH, the electro chemical dissolution phase introduces stresses.”(b) True(c) FalseThe question was asked in an online interview.Origin of the question is ECH-Process Characteristics, Applications topic in division Hybrid Electrochemical Processes of Advanced Machining
Answer» Correct choice is (b) True Best EXPLANATION: Electro chemical DISSOLUTION PRODUCES no stresses and AUTOMATICALLY deburrs the part in Electro chemical honing PROCESS.

Discussion

Explore topic-wise InterviewSolutions in .

What are the values of current densities used in the ECG process?(a) 1 to 60 A/cm^2(b) 60 to 120 A/cm^2(c) 120 to 240 A/cm^2(d) 240 to 480 A/cm^2This question was addressed to me in homework.My query is from ECG-Material Removal Rate in section Hybrid Electrochemical Processes of Advanced Machining

What are the values of current used in ECG?(a) 1 to 50 A(b) 50 to 300 A(c) 300 to 600 A(d) 600 to 1000 AI have been asked this question in unit test.My enquiry is from Electrochemical Grinding-Introduction in section Hybrid Electrochemical Processes of Advanced Machining

What is the flow rate of the electrolytic solution used in ECH process?(a) 85 L/min(b) 95 L/min(c) 105 L/min(d) 115 L/minI got this question during an online interview.My doubt is from Electrochemical Honning-Introduction topic in portion Hybrid Electrochemical Processes of Advanced Machining

What are the tolerances that are achieved using ECH process?(a) ± 0.001 mm(b) ± 0.002 mm(c) ± 0.003 mm(d) ± 0.004 mmI had been asked this question at a job interview.The doubt is from ECH-Process Characteristics, Applications in division Hybrid Electrochemical Processes of Advanced Machining

What is the value of electrolytic temperature maintained in ECH?(a) 18 ᵒC(b) 28 ᵒC(c) 38 ᵒC(d) 48 ᵒCThe question was asked during a job interview.Question is from Electrochemical Honning-Introduction in chapter Hybrid Electrochemical Processes of Advanced Machining