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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 251. |
Electrode wear ratios can be expressed as, which of the following wears?(a) End wear(b) Side wear(c) Corner wear(d) All of the mentionedI got this question in an online interview.This intriguing question originated from EDM-Machining System topic in chapter Thermal Processes of Advanced Machining |
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Answer» The correct choice is (d) All of the mentioned |
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| 252. |
After invention of EDM, surface finish have improved by how much factor?(a) 10(b) 15(c) 20(d) 25I have been asked this question in homework.I'd like to ask this question from Electro Discharge Machining-Introduction in division Thermal Processes of Advanced Machining |
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Answer» CORRECT choice is (b) 15 For explanation: SURFACE finish have been improved by a FACTOR of 15 after the invention of EDM. |
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| 253. |
By using EDM, how much percentage of machining costs can be reduced?(a) 10 %(b) 20 %(c) 30 %(d) 50 %I got this question in quiz.Query is from Electro Discharge Machining-Introduction in division Thermal Processes of Advanced Machining |
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Answer» Correct ANSWER is (c) 30 % |
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| 254. |
What are the thickness values of silicon samples that can be thinned?(a) 1 to 5 µm(b) 5 to 10 µm(c) 10 to 15 µm(d) 15 to 20 µmThe question was posed to me during an interview.This key question is from IBM-Surface effects and Applications in section Thermal Processes of Advanced Machining |
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Answer» Right CHOICE is (C) 10 to 15 µm |
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| 255. |
What is the value of voltage required for machining in Ion beam machining?(a) 1 kV(b) 2 kV(c) 3 kV(d) 4 kVThis question was posed to me in an interview for internship.I would like to ask this question from Ion Beam Machining-Introduction, Material Removal Rate topic in portion Thermal Processes of Advanced Machining |
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Answer» The correct answer is (a) 1 kV |
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| 256. |
State whether the following statement is true or false regarding the advantages of LBM.(a) “In LBM, difficult to cut machine material can also be machined.”(b) True(c) FalseThis question was addressed to me during an online exam.This intriguing question comes from LBM-Advantages and Limitations in chapter Thermal Processes of Advanced Machining |
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Answer» The correct ANSWER is (a) “In LBM, difficult to cut machine MATERIAL can also be machined.” |
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| 257. |
What are the tolerance values obtained when we use laser drilling process?(a) 0.1 – 5%(b) 5 – 20%(c) 25 – 50%(d) 50 – 80%I had been asked this question during an online exam.The above asked question is from LBM-Applications topic in division Thermal Processes of Advanced Machining |
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Answer» Correct OPTION is (b) 5 – 20% |
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| 258. |
Other non-conventional processes lay behind Laser beam machining in drilling process because of which factors below?(a) High cost(b) Long lead times(c) Low machining speeds(d) All of the mentionedI got this question during an internship interview.I'm obligated to ask this question of LBM-Applications topic in chapter Thermal Processes of Advanced Machining |
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Answer» The correct choice is (d) All of the mentioned |
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| 259. |
State whether the following statement is true of false regarding LBM.(a) “In LBM, high intensity laser beams are recommended for more material.”(b) True(c) FalseThe question was posed to me by my college director while I was bunking the class.Query is from LBM-Material Removal in section Thermal Processes of Advanced Machining |
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Answer» The CORRECT answer is (b) True |
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| 260. |
Physics of laser is very complex due to which of the reasons below?(a) Scattering loss(b) Reflection loss(c) Scattering & Reflection loss(d) None of the mentionedI have been asked this question in an interview for job.I would like to ask this question from LBM-Material Removal in chapter Thermal Processes of Advanced Machining |
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Answer» The CORRECT choice is (c) Scattering & REFLECTION loss |
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| 261. |
What is the wavelength value of Nd-YAG and Nd-glass lasers used in LBM?(a) 633 nm(b) 694 nm(c) 856 nm(d) 1064 nmI have been asked this question in homework.My doubt is from Laser Beam Machining-Introduction in chapter Thermal Processes of Advanced Machining |
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Answer» Correct answer is (d) 1064 NM |
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| 262. |
Electro discharge sawing is an application of EDM which employs __________ as tool material.(a) Steel band(b) Disc(c) Steel band & Disc(d) None of the mentionedI got this question during an interview.The doubt is from EDM-Applications in portion Thermal Processes of Advanced Machining |
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Answer» Right option is (c) Steel band & DISC |
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| 263. |
What happens to the dielectric flushing while milling tool is rotated at a high speed in EDM?(a) Improved(b) Worsen(c) Reduced(d) All of the mentionedThe question was posed to me during an online interview.Query is from EDM-Applications in portion Thermal Processes of Advanced Machining |
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Answer» CORRECT choice is (a) Improved For explanation: MILLING by electro discharge machining enhances the dielectric flushing due to high SPEED rotation of TOOL. |
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| 264. |
In Electro discharge machining, what happens to the surface finish if the pulse energy is decreased?(a) Reduces(b) Decreases(c) Improves(d) None of the mentionedI had been asked this question during an internship interview.This interesting question is from EDM-Surface Integrity in division Thermal Processes of Advanced Machining |
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Answer» CORRECT choice is (c) Improves The BEST EXPLANATION: In ELECTRO discharge machining, the surface finish improves if the pulse energy is decreased. |
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| 265. |
On which of the following components, does the MRR depend?(a) Work piece(b) Electrode tool(c) Electrode tool & Work piece(d) None of the mentionedThis question was addressed to me in an internship interview.My doubt is from EDM-Material Removal Rate topic in section Thermal Processes of Advanced Machining |
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Answer» The CORRECT choice is (c) Electrode tool & Work piece |
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| 266. |
Amount of material removed from anode and cathode depend on which of the following?(a) Electrons(b) Positive ions(c) Electrons & Positive ions(d) None of the mentionedI got this question in an interview for internship.This interesting question is from EDM-Mechanism of Material Removal topic in chapter Thermal Processes of Advanced Machining |
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Answer» Correct option is (c) ELECTRONS & Positive ions |
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| 267. |
The evolution of wire EDM took place in which part of history?(a) 1940s(b) 1950s(c) 1960s(d) 1970sThis question was addressed to me by my school teacher while I was bunking the class.The origin of the question is Electro Discharge Machining-Introduction in division Thermal Processes of Advanced Machining |
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Answer» CORRECT choice is (d) 1970s The BEST EXPLANATION: Evolution of WIRE EDM in 1970s was due to powerful generators, new wire electrodes, improved machining INTELLIGENCE and better flushing. |
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| 268. |
What are the values of repeatability obtained in Ion beam machining?(a) ± 1.0%(b) ± 2.0%(c) ± 3.0%(d) ± 4.0%The question was asked in exam.The origin of the question is IBM-Surface effects and Applications topic in section Thermal Processes of Advanced Machining |
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Answer» Right answer is (a) ± 1.0% |
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| 269. |
What is the value of the current used in PBM process?(a) Up to 200 A(b) Up to 400 A(c) Up to 600 A(d) Up to 800 AI have been asked this question during an internship interview.This is a very interesting question from Plasma Beam Machining-Introduction And Machining system topic in portion Thermal Processes of Advanced Machining |
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Answer» CORRECT answer is (c) Up to 600 A The best explanation: The value of the current USED in PBM will be up to 600 A. |
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| 270. |
What is the value of the voltage used in PBM process?(a) 0.1 – 20 V(b) 30 – 250 V(c) 300 – 400 V(d) 500 – 600 VI got this question during an online interview.My query is from Plasma Beam Machining-Introduction And Machining system topic in section Thermal Processes of Advanced Machining |
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Answer» The correct option is (b) 30 – 250 V |
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| 271. |
What are the values of currents used in EBM process?(a) 1 and 20 mA(b) 20 and 100 mA(c) 100 and 200 mA(d) 200 and 400 mAThis question was addressed to me in a national level competition.The question is from Electronbeam Machining-Introduction, Equipment and Material removal in section Thermal Processes of Advanced Machining |
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Answer» Right choice is (b) 20 and 100 mA |
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| 272. |
What is the value of material removal rate in Plasma Beam Machining process?(a) 50 cm^3/min(b) 100 cm^3/min(c) 150 cm^3/min(d) 200 cm^3/minThe question was asked in an online interview.Question is from Plasma Beam Machining-Introduction And Machining system topic in division Thermal Processes of Advanced Machining |
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Answer» Right answer is (c) 150 cm^3/min |
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| 273. |
What is the value of maximum depth of the hole drilled on EBM?(a) 10 mm(b) 20 mm(c) 30 mm(d) 40 mmThe question was posed to me during an interview.This intriguing question originated from EBM-Applications, Advantages and Disadvantages in portion Thermal Processes of Advanced Machining |
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Answer» The correct OPTION is (c) 30 MM |
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| 274. |
What is to be done to the adherent material which are found at exit holes?(a) Shape them(b) Leave away(c) Remove them(d) Flatten themI have been asked this question during an internship interview.Asked question is from LBM-Advantages and Limitations topic in portion Thermal Processes of Advanced Machining |
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Answer» Correct OPTION is (c) Remove them |
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| 275. |
Which of the following is not an advantage of LBM?(a) Rapid machining(b) Low operating cost(c) High equipment cost(d) No tool wearThe question was asked in class test.I need to ask this question from LBM-Advantages and Limitations in section Thermal Processes of Advanced Machining |
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Answer» CORRECT answer is (C) High equipment cost The EXPLANATION is: Rapid machining, low OPERATING cost and no tool WEAR are some of the advantages of Laser beam machining. |
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| 276. |
What range of powers are used for cutting through steel?(a) 1 to 20 W(b) 20 to 100 W(c) 200 to 1000 W(d) 1 to 20 kWThe question was asked in an interview for job.This question is from LBM-Applications in division Thermal Processes of Advanced Machining |
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Answer» Right OPTION is (C) 200 to 1000 W |
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| 277. |
Which of the following are the other applications of LBM?(a) Dressing of grinding wheels(b) Scribing(c) Micromachining(d) All of the mentionedThis question was addressed to me in a job interview.The question is from LBM-Applications in section Thermal Processes of Advanced Machining |
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Answer» RIGHT CHOICE is (d) All of the mentioned For explanation: Dressing of grinding wheels, SCRIBING, micromachining, controlled FRACTURING are some of the other applications of Laser BEAM machining. |
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| 278. |
How much amount of incident radiation is reflected at lower power densities?(a) 10 percent(b) 20 percent(c) 50 percent(d) 90 percentThis question was posed to me in an interview.The question is from LBM-Material Removal in portion Thermal Processes of Advanced Machining |
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Answer» RIGHT ANSWER is (d) 90 PERCENT The best I can explain: Most of the metals reflect NEARLY 90 percent of incident radiation if the POWER densities are low. |
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| 279. |
Which of the following phenomenon take place before melting and evaporating in LBM?(a) Conduction(b) Reflection(c) Absorption(d) All of the mentionedI have been asked this question in an interview for job.I need to ask this question from LBM-Material Removal topic in portion Thermal Processes of Advanced Machining |
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Answer» Right answer is (d) All of the mentioned |
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| 280. |
Machining of LBM takes place when power density is ____________ than what is lost by conduction and radiation.(a) Greater(b) Smaller(c) Lower(d) Same asThe question was asked in semester exam.The above asked question is from LBM-Material Removal in chapter Thermal Processes of Advanced Machining |
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Answer» The CORRECT choice is (a) Greater |
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| 281. |
Which of the following are different types of lasers used in Laser beam machining?(a) Solid-state ion(b) Neutral gas(c) Semiconductor(d) All of the mentionedThis question was posed to me by my school principal while I was bunking the class.This key question is from Laser Beam Machining-Introduction in section Thermal Processes of Advanced Machining |
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Answer» Right CHOICE is (d) All of the mentioned |
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| 282. |
What are the values of wavelengths of Argon laser used in LBM?(a) 120 – 230 nm(b) 220 – 310 nm(c) 330 – 530 nm(d) 760 – 940 nmThis question was posed to me in an interview for internship.My doubt is from Laser Beam Machining-Introduction in section Thermal Processes of Advanced Machining |
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Answer» Right answer is (c) 330 – 530 NM |
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| 283. |
What are the values of wavelengths of GaAs laser used in LBM?(a) 100 – 200 nm(b) 200 – 400 nm(c) 600 – 700 nm(d) 800 – 900 nmThis question was addressed to me in final exam.I need to ask this question from Laser Beam Machining-Introduction in division Thermal Processes of Advanced Machining |
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Answer» Right option is (d) 800 – 900 NM |
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| 284. |
Which types of lasers are used in Laser beam machining?(a) Continuous wave(b) Pulsed mode(c) Continuous wave & Pulsed mode(d) None of the mentionedThe question was asked during a job interview.My enquiry is from Laser Beam Machining-Introduction in portion Thermal Processes of Advanced Machining |
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Answer» The CORRECT ANSWER is (C) Continuous WAVE & Pulsed mode |
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| 285. |
Hydro carbons present in the dielectric fluid have impact on which of the body parts?(a) Eyes(b) Teeth(c) Skin(d) NailsI got this question in an online interview.I'm obligated to ask this question of EDM-Process Control, Automation, Environmental Impact in section Thermal Processes of Advanced Machining |
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Answer» Right option is (C) Skin |
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| 286. |
What are the values of thickness of annealed surface obtained while machining using EDM?(a) 1 to 25 µm(b) 50 to 200 µm(c) 200 to 500 µm(d) 500 to 1000 µmI had been asked this question in an interview for job.My doubt stems from EDM-Heat Affected Zone (HAZ) in chapter Thermal Processes of Advanced Machining |
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Answer» Correct answer is (B) 50 to 200 µm |
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| 287. |
High temperatures produced in the working gap results in which of the following potentials?(a) Hazardous smoke(b) Toxic vapours(c) Aerosols(d) All of the mentionedThe question was asked during an interview for a job.My query is from EDM-Process Control, Automation, Environmental Impact in section Thermal Processes of Advanced Machining |
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Answer» Correct OPTION is (d) All of the mentioned |
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| 288. |
Which of the following is a major difficulty in the Electro discharge machining process?(a) Proper sparks(b) Abnormal discharges(c) Optimum feed rates(d) No burrThe question was posed to me by my college professor while I was bunking the class.This is a very interesting question from EDM-Process Control, Automation, Environmental Impact in portion Thermal Processes of Advanced Machining |
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Answer» The correct choice is (b) Abnormal discharges |
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| 289. |
What are the values of diameter which are machined using Micro-EDM?(a) 0.001 to 0.01 mm(b) 0.01 to 0.1 mm(c) 0.1 to 1 mm(d) 1 to 10 mmThe question was posed to me in final exam.The query is from EDM-Applications in division Thermal Processes of Advanced Machining |
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Answer» The correct OPTION is (c) 0.1 to 1 mm |
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| 290. |
Which of the following electrodes are used for machining spherical surfaces in Electro discharge machining?(a) Tubular electrodes(b) Flat electrodes(c) Cuboidal electrodes(d) All of the mentionedThis question was addressed to me in an interview for job.My question is from EDM-Applications topic in chapter Thermal Processes of Advanced Machining |
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Answer» Correct option is (a) Tubular electrodes |
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| 291. |
During finishing process through Electro discharge machining, what is the value thickness of layer formed?(a) |
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Answer» CORRECT CHOICE is (a) <0.075 mm For EXPLANATION: The thickness of layer OBTAINED during EDM finishing is <0.075 mm. |
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| 292. |
What happens to the crater size if we decrease the pulse time keeping the current constant?(a) Increase(b) Decrease(c) Increase and decrease(d) None of the mentionedThis question was posed to me during a job interview.This key question is from EDM-Material Removal Rate topic in portion Thermal Processes of Advanced Machining |
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Answer» Correct answer is (b) Decrease |
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| 293. |
Few large holes are _________ than many small flushing holes in Electro discharge machining.(a) Worse(b) Better(c) Well(d) None of the mentionedThis question was posed to me during an online exam.Question is taken from EDM-Machining System in portion Thermal Processes of Advanced Machining |
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Answer» Correct CHOICE is (a) Worse |
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| 294. |
How is material removed in Electro discharge machining?(a) Melt and evaporate(b) Corrode and break(c) Mechanical erosion takes place(d) None of the mentionedThe question was asked in a national level competition.This question is from EDM-Mechanism of Material Removal in portion Thermal Processes of Advanced Machining |
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Answer» Correct ANSWER is (a) Melt and evaporate |
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| 295. |
What is the value of surface finish obtained by using Ion beam machining?(a) |
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Answer» Correct ANSWER is (a) <1 µm |
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| 296. |
Machining rates in IBM depend on which of the following factors?(a) Work piece material(b) Ions type(c) Incident angle(d) All of the mentionedThe question was asked in quiz.Origin of the question is Ion Beam Machining-Introduction, Material Removal Rate topic in portion Thermal Processes of Advanced Machining |
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Answer» The CORRECT answer is (d) All of the mentioned |
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| 297. |
How much amount of energy is required for effective removal of atoms?(a) 1 to 5 eV(b) 5 to 10 eV(c) 10 to 15 eV(d) 15 to 20 eVThe question was posed to me during an interview.Question is from Ion Beam Machining-Introduction, Material Removal Rate topic in portion Thermal Processes of Advanced Machining |
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Answer» The correct option is (B) 5 to 10 eV |
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| 298. |
Which of the following chemicals are used in PBM?(a) Harmful chlorinated fluorocarbons(b) Acid cleaning chemicals(c) Dissolvable solvent chemicals(d) None of the mentionedThe question was asked in examination.This is a very interesting question from PBM topic in section Thermal Processes of Advanced Machining |
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Answer» RIGHT choice is (d) None of the mentioned The best I can explain: Plasma beam machining uses no harmful chlorinated fluorocarbons, acid CLEANING chemicals or any DISSOLVABLE SOLVENTS. |
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| 299. |
What is the range of depth-to-diameter ratio in Electron beam machining?(a) 2:5 to 2:11(b) 1:1 to 1:15(c) 3:4 to 3:20(d) 4:5 to 4:19I had been asked this question in examination.The above asked question is from EBM-Applications, Advantages and Disadvantages in division Thermal Processes of Advanced Machining |
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Answer» The CORRECT ANSWER is (b) 1:1 to 1:15 |
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| 300. |
LBM offers a good solution for which material properties below?(a) Thermal conductivity(b) Specific heat(c) Boiling temperature(d) All of the mentionedI had been asked this question in semester exam.I need to ask this question from Laser Beam Machining-Introduction topic in division Thermal Processes of Advanced Machining |
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Answer» CORRECT CHOICE is (d) All of the mentioned Explanation: LBM offers GOOD solution for material PROPERTIES such as thermal conductivity, SPECIFIC heat, melting and boiling temperatures. |
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