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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.
| 201. |
What is the abbreviation of Laser?(a) Light allowed simple emission of radiation(b) Light amplification by stimulated emission of radiation(c) Light amplified simultaneous emission of rays(d) Light amplified stimulated emanation of raysThis question was posed to me in an interview for job.Question is from Laser Beam Machining-Introduction topic in chapter Thermal Processes of Advanced Machining |
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Answer» RIGHT choice is (B) Light amplification by STIMULATED emission of RADIATION Explanation: Full form of laser is Light Amplification by Stimulated emission of radiation. |
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| 202. |
In EDM, choosing electrodes that produce which type of machining reduces the annealing effect?(a) Stable(b) Unstable(c) Uneven(d) All of the mentionedI had been asked this question in my homework.I'd like to ask this question from EDM-Heat Affected Zone (HAZ) topic in division Thermal Processes of Advanced Machining |
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Answer» RIGHT CHOICE is (a) Stable Easiest explanation: In Electro DISCHARGE MACHINING, choosing the electrodes which produce more stable machining reduces the annealing effect. |
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| 203. |
How are EDM’s levels of integration when compared to conventional machining?(a) Slower rate(b) Faster rate(c) Same rate(d) None of the mentionedThe question was posed to me during an interview for a job.Origin of the question is EDM-Process Control, Automation, Environmental Impact in section Thermal Processes of Advanced Machining |
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Answer» CORRECT answer is (a) Slower rate Explanation: EDM’s LEVELS of computer integration is at a slower rate when compared to CONVENTIONAL machining PROCESSES. |
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| 204. |
What are the values of depths that can be machined using Micro-EDM?(a) 1 mm(b) 10 mm(c) 100 mm(d) 1000 mmThe question was asked by my college director while I was bunking the class.My doubt is from EDM-Applications topic in section Thermal Processes of Advanced Machining |
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Answer» The correct option is (c) 100 mm |
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| 205. |
In Electro discharge machining, materials with low melting point have which type of surface roughness?(a) Rough(b) Smooth(c) Fine(d) All of the mentionedThis question was addressed to me during an internship interview.My enquiry is from EDM-Material Removal Rate topic in chapter Thermal Processes of Advanced Machining |
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Answer» The correct answer is (a) Rough |
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| 206. |
What are the values of temperatures obtained in Electro discharge machining?(a) 1000 to 2000 ^oC(b) 2000 to 4000 ^oC(c) 4000 to 8000 ^oC(d) 8000 to 12000 ^oCI had been asked this question during an online exam.My query is from EDM-Heat Affected Zone (HAZ) topic in portion Thermal Processes of Advanced Machining |
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Answer» RIGHT OPTION is (d) 8000 to 12000 ^oC Easy EXPLANATION: The TEMPERATURE attained while machining in Electro discharge machining are from 8000 to 12000 ^oC. |
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| 207. |
Which of the following factors influence the material removal rate?(a) Pulse condition(b) Electrode polarity(c) Machining medium(d) All of the mentionedThe question was posed to me in homework.Question is from EDM-Material Removal Rate topic in portion Thermal Processes of Advanced Machining |
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Answer» Correct choice is (d) All of the mentioned |
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| 208. |
In Electro discharge machining, which type of dielectric flow mentioned below is desirable?(a) Unsteady flow(b) Steady flow(c) Unstable flow(d) None of the mentionedI got this question by my school principal while I was bunking the class.My doubt stems from EDM-Machining System topic in portion Thermal Processes of Advanced Machining |
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Answer» The correct OPTION is (b) STEADY flow |
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| 209. |
In Electro discharge machining, highest wear ratio is associated with which type of melting point?(a) Low(b) Medium(c) High(d) Very highI got this question during an online exam.This question is from EDM-Machining System in division Thermal Processes of Advanced Machining |
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Answer» CORRECT OPTION is (a) Low To explain: In Electro DISCHARGE machining, lowering of the melting point of electrode MATERIAL results in HIGH wear ratio. |
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| 210. |
State whether the following statement is true or false regarding wear in EDM.(a) “In EDM, corner wear ratio does not depend on type of electrode material.”(b) True(c) FalseI had been asked this question in a national level competition.This intriguing question originated from EDM-Machining System in division Thermal Processes of Advanced Machining |
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Answer» The correct option is (b) True |
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| 211. |
Which of the following are the other factors that influence the electrode wear?(a) Voltage(b) Current(c) Electrode material(d) All of the mentionedThis question was addressed to me in semester exam.I would like to ask this question from EDM-Machining System in chapter Thermal Processes of Advanced Machining |
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Answer» The correct ANSWER is (d) All of the mentioned |
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| 212. |
Metals with _________ melting point and _________ electrical conductivity are chosen as tools in EDM.(a) Low, good(b) Low, bad(c) High, good(d) High, badI have been asked this question during an interview.My question comes from EDM-Machining System topic in section Thermal Processes of Advanced Machining |
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Answer» RIGHT option is (C) High, GOOD Best explanation: In EDM, metals with high MELTING point and good electrical CONDUCTIVITY are used as tools. |
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| 213. |
Which of the following are main components of EDM?(a) Dielectric system(b) Servomechanism(c) Power supply(d) All of the mentionedThis question was posed to me at a job interview.I need to ask this question from EDM-Machining System in portion Thermal Processes of Advanced Machining |
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Answer» CORRECT OPTION is (d) All of the mentioned For explanation: Main COMPONENTS of machining system in EDM are – dielectric system, power supply and SERVOMECHANISM. |
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| 214. |
What is the value of gap maintained between the electrodes when we use servo mechanism?(a) 10 – 100 µm(b) 100 – 200 µm(c) 200 – 500 µm(d) 500 – 1000 µmI have been asked this question in final exam.My doubt is from EDM-Mechanism of Material Removal topic in portion Thermal Processes of Advanced Machining |
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Answer» RIGHT answer is (c) 200 – 500 µm To explain: In EDM, value of gap MAINTAINED between the electrodes RANGE between 200 and 500 µm. |
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| 215. |
State whether the following statement is true or false about material removal in EDM.(a) “In EDM, high pressures allow the metal to evaporate.”(b) True(c) FalseI got this question in final exam.My question is taken from EDM-Mechanism of Material Removal in portion Thermal Processes of Advanced Machining |
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Answer» Right choice is (b) True |
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| 216. |
What range of heat fluxes are obtained while machining using EDM?(a) 10^17 W/m^2(b) 10^19 W/m^2(c) 10^24 W/m^2(d) 10^27 W/m^2I had been asked this question during an interview.I need to ask this question from EDM-Mechanism of Material Removal topic in division Thermal Processes of Advanced Machining |
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Answer» Right OPTION is (a) 10^17 W/m^2 |
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| 217. |
What are the values of temperature that are obtained while machining using EDM?(a) 2000 to 3000ᵒC(b) 4000 to 6000ᵒC(c) 8000 to 12000ᵒC(d) 15000 to 20000ᵒCI had been asked this question during an interview for a job.I want to ask this question from EDM-Mechanism of Material Removal topic in chapter Thermal Processes of Advanced Machining |
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Answer» CORRECT answer is (c) 8000 to 12000ᵒC For explanation I would SAY: The temperatures OBTAINED when the ions reach their RESPECTIVE electrodes, range between 8000ᵒC and 12000ᵒC. |
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| 218. |
Which of the following are the different shielded plasmas used in PBM?(a) Gas-shielded plasma(b) Water-shielded plasma(c) Gas-shielded & Water-shielded plasma(d) None of the mentionedThe question was posed to me in an international level competition.My question is from Plasma Beam Machining-Introduction And Machining system in chapter Thermal Processes of Advanced Machining |
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Answer» Right answer is (c) Gas-SHIELDED & Water-shielded plasma |
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| 219. |
What is the temperature reached by cathode in order to produce plasma beam?(a) 12000 ºC(b) 18000 ºC(c) 28000 ºC(d) 40000 ºCThis question was posed to me in examination.My doubt is from Plasma Beam Machining-Introduction And Machining system in section Thermal Processes of Advanced Machining |
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Answer» CORRECT choice is (C) 28000 ºC To ELABORATE: The temperature REACHED by cathode to produce plasma arc is about 28000 ºC in Plasma Beam MACHINING. |
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| 220. |
What is the value of largest diameter of the hole drilled on EBM?(a) 0.5 mm(b) 1.0 mm(c) 1.5 mm(d) 2.0 mmI got this question in an internship interview.This key question is from EBM-Applications, Advantages and Disadvantages in division Thermal Processes of Advanced Machining |
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Answer» Correct choice is (c) 1.5 MM |
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| 221. |
What are the values of the cavity diameters that are obtained in EBM?(a) 15 to 20 µm(b) 20 to 25 µm(c) 30 to 35 µm(d) 35 to 40 µmI got this question in exam.I want to ask this question from Electronbeam Machining-Introduction, Equipment and Material removal in section Thermal Processes of Advanced Machining |
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Answer» The correct choice is (d) 35 to 40 µm |
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| 222. |
Which of the following are the applications of EBM?(a) Hole drilling(b) Slotting(c) Perforation of thin sheets(d) All of the mentionedThis question was addressed to me in homework.The doubt is from EBM-Applications, Advantages and Disadvantages in section Thermal Processes of Advanced Machining |
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Answer» CORRECT choice is (d) All of the mentioned For explanation: Drilling, perforation of thin SHEETS, slotting and integrated CIRCUIT fabrication are some of the APPLICATIONS of Electron beam machining. |
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| 223. |
Very __________ holes with a ________ aspect ratio can be produced using Laser beam machining.(a) Small, small(b) Small, large(c) Large, small(d) Large, largeThe question was asked in homework.Enquiry is from LBM-Advantages and Limitations in portion Thermal Processes of Advanced Machining |
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Answer» CORRECT answer is (B) Small, large Explanation: In Laser beam MACHINING, very small holes with large ASPECT ratios can be produced. |
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| 224. |
What is the maximum depth up to which holes can be drilled using LBM?(a) 10 mm(b) 30 mm(c) 50 mm(d) 70 mmThis question was addressed to me in homework.My question is based upon LBM-Advantages and Limitations topic in chapter Thermal Processes of Advanced Machining |
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Answer» CORRECT answer is (c) 50 MM For explanation: The thickness of the material that can be LASER drilled is restricted to 50 mm. |
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| 225. |
Which of the following systems is used for locating the hole accurately for alignment?(a) Mechanical control system(b) Optical laser system(c) Measurement system(d) Alignment systemThe question was asked during an online exam.My question is taken from LBM-Advantages and Limitations topic in chapter Thermal Processes of Advanced Machining |
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Answer» CORRECT OPTION is (b) Optical laser system To EXPLAIN: Holes can be accurately located using optical laser system for alignment in Laser BEAM machining. |
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| 226. |
Where are the textured surfaces used that are obtained in LBT?(a) Mould makings(b) Bearings(c) Printer roll manufacturing(d) All of the mentionedThis question was addressed to me in quiz.This intriguing question originated from LBM-Applications in section Thermal Processes of Advanced Machining |
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Answer» The correct answer is (d) All of the mentioned |
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| 227. |
Depth and the crater size depends on which of them below?(a) Energy of beam(b) Dwell time of beam(c) Energy & Dwell time of beam(d) None of the mentionedI have been asked this question in an interview for job.Question is taken from LBM-Applications in division Thermal Processes of Advanced Machining |
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Answer» Right option is (C) ENERGY & DWELL time of beam |
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| 228. |
Which of the following properties of material affect the quality of holes obtained?(a) Reflectivity(b) Absorption coefficient(c) Thermal conductivity(d) All of the mentionedThis question was posed to me in semester exam.This intriguing question comes from LBM-Applications topic in portion Thermal Processes of Advanced Machining |
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Answer» CORRECT ANSWER is (d) All of the mentioned For explanation: Quality of HOLES depend on reflectivity, ABSORPTION coefficient, THERMAL conductivity, density, specific heat, and latent heat of material. |
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| 229. |
_________ pulse energy and _________ pulse duration are suitable for drilling.(a) Low, short(b) Low, long(c) High, short(d) High, longI have been asked this question by my school teacher while I was bunking the class.This intriguing question comes from LBM-Applications in chapter Thermal Processes of Advanced Machining |
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Answer» Right choice is (C) High, short |
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| 230. |
What is the maximum value of drilling depth in trepanning method of laser drilling process?(a) 1.7 mm(b) 4.3 mm(c) 6.4 mm(d) 7.9 mmThe question was posed to me at a job interview.My question comes from LBM-Applications topic in section Thermal Processes of Advanced Machining |
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Answer» Right OPTION is (c) 6.4 MM |
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| 231. |
Laser drilling has proven to be more efficient in which of the following factors?(a) Cost(b) Quality(c) Reliability(d) All of the mentionedI got this question during an interview.I'd like to ask this question from LBM-Applications topic in chapter Thermal Processes of Advanced Machining |
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Answer» CORRECT option is (d) All of the mentioned Explanation: Laser drilling has proven to be an EFFICIENT one in terms of cost, quality, and RELIABILITY for large-scale PRODUCTION applications. |
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| 232. |
Laser beam machining uses which type of power sources for machining?(a) Very low power(b) Low power(c) Medium power(d) High powerThis question was posed to me in an online interview.My question is from Laser Beam Machining-Introduction in division Thermal Processes of Advanced Machining |
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Answer» Correct CHOICE is (d) HIGH power |
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| 233. |
Reduction in the electrical energy consumption will have impact on which aspects mentioned below?(a) Environmental(b) Economic(c) Environmental & Economic(d) None of the mentionedThis question was addressed to me in quiz.My doubt is from EDM-Process Control, Automation, Environmental Impact topic in division Thermal Processes of Advanced Machining |
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Answer» RIGHT option is (c) ENVIRONMENTAL & ECONOMIC The best explanation: The reduction of electric energy CONSUMPTION has economic as well as environmental benefits. |
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| 234. |
Which of the following processes can be used for restoration of fatigue properties?(a) Low-stress grinding(b) Chemical machining(c) Reheat treatment(d) All of the mentionedThe question was posed to me during an online interview.Origin of the question is EDM-Heat Affected Zone (HAZ) 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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| 235. |
During roughing process through Electro discharge machining, what is the thickness of layer formed?(a) |
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Answer» RIGHT answer is (b) <0.125 mm To explain I would say: The THICKNESS of layer OBTAINED after MACHINING is <0.127 mm in EDM. |
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| 236. |
The depth of the annealed surface is __________ to the amount of power used in machining operation.(a) Directly proportional(b) Inversely proportional(c) Exponential(d) All of the mentionedThis question was posed to me in a job interview.The query is from EDM-Heat Affected Zone (HAZ) in section Thermal Processes of Advanced Machining |
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Answer» Right OPTION is (a) Directly proportional |
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| 237. |
What happens to the surface roughness if oxygen gas is introduced in the gap?(a) Increases(b) Decreases(c) Decrease and then increase(d) All of the mentionedThe question was posed to me in unit test.My question comes from EDM-Surface Integrity in chapter Thermal Processes of Advanced Machining |
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Answer» RIGHT CHOICE is (B) Decreases To explain: In EDM, surface ROUGHNESS increases with the supply of OXYGEN gas in gaps. |
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| 238. |
What is the function of feed-control system in Electro discharge machining?(a) Constant gap(b) Supply power(c) Dielectric fluid supply(d) Work piece holdingI have been asked this question in class test.The question is from EDM-Machining System topic in section Thermal Processes of Advanced Machining |
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Answer» The CORRECT option is (a) Constant gap |
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| 239. |
How does the ions strike the work piece in machining using IBM?(a) Oblique striking(b) Normal incident striking(c) Oblique & Normal incident striking(d) None of the mentionedI got this question by my college director while I was bunking the class.I need to ask this question from Ion Beam Machining-Introduction, Material Removal Rate in section Thermal Processes of Advanced Machining |
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Answer» Right CHOICE is (c) Oblique & Normal INCIDENT striking |
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| 240. |
Which of the following are the components of Ion beam machining?(a) Vacuum chamber(b) Voltage source(c) Tungsten filament cathode(d) All of the mentionedThis question was posed to me during an online exam.The origin of the question is Ion Beam Machining-Introduction, Material Removal Rate topic in chapter Thermal Processes of Advanced Machining |
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Answer» Right answer is (d) All of the mentioned |
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| 241. |
What is the machining speed required for machining of 12mm thick plate with 220 kW energy?(a) 1000 mm/min(b) 1500 mm/min(c) 2000 mm/min(d) 2500mm/minThe question was asked in an international level competition.My query is from PBM topic in section Thermal Processes of Advanced Machining |
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Answer» RIGHT CHOICE is (d) 2500mm/min Explanation: MACHINING speed required for cutting 12-mm thick plate with 220 kW power is about 2500 mm/min. |
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| 242. |
A low power factors indicates __________ energy required and __________ removal rates.(a) Low, low(b) Low, high(c) High, low(d) High, highI had been asked this question in a national level competition.My question is taken from PBM topic in portion Thermal Processes of Advanced Machining |
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Answer» Correct answer is (B) Low, high |
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| 243. |
What are the values of voltages used in the EBM process?(a) 10 V(b) 50 V(c) 150 V(d) 200 VThe question was asked in quiz.The question is from Electronbeam Machining-Introduction, Equipment and Material removal in division Thermal Processes of Advanced Machining |
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Answer» The correct ANSWER is (C) 150 V |
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| 244. |
The advantages of excimer laser are due to __________ laser wavelength and _________ pulse duration.(a) Short, short(b) Short, long(c) Long, short(d) Long, longThe question was posed to me by my college director while I was bunking the class.My question is taken from LBM-Applications topic in section Thermal Processes of Advanced Machining |
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Answer» RIGHT choice is (a) Short, short To explain I WOULD say: The practical advantages of EXCIMER LASER are mainly due to short laser WAVELENGTH and pulse duration. |
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| 245. |
In a simple application which of the following parameters are inputs?(a) Pulse duration and current(b) Normal and abnormal pulses(c) All of the mentioned(d) None of the mentionedThis question was posed to me in my homework.I'm obligated to ask this question of EDM-Process Control, Automation, Environmental Impact topic in division Thermal Processes of Advanced Machining |
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Answer» The correct option is (a) Pulse DURATION and current |
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| 246. |
Which of the following materials are machined using Wire Electro discharge machining?(a) Polycrystalline diamond(b) Cubic Boronitride(c) Matrix composites(d) All of the mentionedThis question was posed to me in my homework.I'm obligated to ask this question of EDM-Applications in chapter Thermal Processes of Advanced Machining |
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Answer» The correct option is (d) All of the mentioned |
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| 247. |
What are the values of dimensional accuracy obtained while machining spherical surfaces?(a) ± 1 µm(b) ± 3 µm(c) ± 5 µm(d) ± 7 µmI got this question during an internship interview.My question comes from EDM-Applications topic in division Thermal Processes of Advanced Machining |
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Answer» RIGHT OPTION is (a) ± 1 µm Explanation: DIMENSIONAL accuracy of ± 1 µm is obtained while MACHINING spherical surfaces using EDM. |
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| 248. |
Which type of electrode is used for drilling in Electro discharge machining?(a) Flat electrode(b) Cuboidal electrode(c) Tubular electrode(d) Spherical electrodeThe question was asked during an interview.I want to ask this question from EDM-Applications topic in portion Thermal Processes of Advanced Machining |
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Answer» Right choice is (c) Tubular electrode |
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| 249. |
State whether the following statement is true or false regarding the HAZ in EDM.(a) “In EDM, post treatment to recover fatigue strength is not recommended.”(b) True(c) FalseI have been asked this question during an online interview.The doubt is from EDM-Heat Affected Zone (HAZ) topic in division Thermal Processes of Advanced Machining |
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Answer» Correct ANSWER is (B) True |
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| 250. |
Which of the following geometries can be machined using EDM?(a) Simple(b) Complex(c) Difficult to cut(d) All of the mentionedThe question was posed to me in an international level competition.This intriguing question originated from Electro Discharge Machining-Introduction in portion Thermal Processes of Advanced Machining |
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Answer» RIGHT answer is (d) All of the mentioned Easiest EXPLANATION: Electrodischarge machining can be used for SIMPLE as WELL as complex geometries. |
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