Metallurgy Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Metallurgy Interview Questions

Questions Answers Views Company eMail

What kind of shell systems are used for investment casting?

2 4758

Why are the superalloys used for land-based turbines?

1 3930

What kind of components are fabricated from the superalloys, and what are their roles?

2 4280

What kinds of NDT methods are available?

10 17947

Why is non-destructive testing necessary?

9 16879

What are the superalloys?

3 9000

What are the superalloys used for?

2 5771

what is the cause of attenuation due to powerloss

1 4614

what happens when a EM wave is transmitted

1 4887

Please send me the comparision of Mils Steel Specification as per BS EN 10130 & IS 2062

1 4328

What metal would be better suited for heat transfer, reliability, and cost...??? I'm currently using Aluminum for a 'hot-wedge'.

3 6112

i m going to give an interview for iocl on 5th aug . pls tell me what questions can be answered from metallurgical prospect

IOCL,

2967

what are the ores of copper?

4 7203

I currently use 17-7 PH stainless which is hardened to condition CH after forming. raw matl is .1.75"X .12" X .008". Its main usage after hardening is silicon wafer retainer where it's contantly cycled up and down to putin and remove wafer after 40-60 sec process at 400C temp. At this high temperature this part seemed to deform after a a couple of hundred wafer which is what it was designed for in the first place. THere is a proposal to go to a different material to increase lifeline of this part. My question is..... can 321 SST be a plugin replacement. I know this has a higher temp rating but how about its forming characteristics, will it have spring properties, and wont become brittle after prolonged exposure to 400C.

Novellus,

2391

any input on how to spec out(if possible) a larger grain structure(3/8" or larger) on a Al 6061 forging material.

Novellus,

2274

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Un-Answered Questions { Metallurgy }

What is iron ferite?

943

What is a gray surface?

1115

what is No.1 Laathing Scrap Bundle ( Mill Scrap )

2182

What is the use of core prints?

1070

Define what is special about the properties of chromium molybdenum steels that make them ideal for pressure vessels?

1096

How gold can be separated from mercury?

1004

What are the properties and application of manganese steel?

901

What is round-robin scheduling in OS?

1099

i want to go to US for Bachlore of computer science, I didn't appeared for SAT. my ielts scores are too low only 5.5 band and I am confused if VISA OFFICERS will ask why u hadn't given SAT. what i have to answer pl suggest?

2141

Define what is the different between ferrite percentage and ferrite number?

914

Which pump is preferred for small discharge at high pressure?

1069

What is select miller cutter?

1107

What happens when the mercury of a thermometer spills over the gold ring?

1011

1)We are using OHNS material for manufacturing Thread & plain Gauges.What is the excat composition of OHNS for Gauges? 2)Which is the reference standard book for OHNS Material composition for Gauges?

4891

Explain any method through which molds can shine after casting?

964

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