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?

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What is hardest cutting tool material?

0 Answers   NIC,

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What is Vacuum Induction Melting ?

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Why we are doing post heating in alloy steel welding?

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Which liquid would oyu use to dissolve gold?

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Is brass magnetic?

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What is power metallurgy?

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The requirement for ASTM A217 Gr. WC9 castings for valves components like Body and Bonnet were Normalising at 920+/- 20 Deg. C and Tempring 780+/- 20 Deg. C The specification calls furnace shall be calibtated within +/-14 deg. C The Heat Chart shows minimum temperature for normalising 900 to 920 Deg. C, but maximum temperature 960-990 Deg. C Tempering 780+/-20 Deg. C is within limits and accepted. Casting having integral test bars, heat trated along with castings passed in chemical znalysis and mechanical properties. Since normalising maximum temperature is not meeting specification, where castings can be salvaged or renormalised and retempered to meet specification. Whether it will have affect on remechanical properties testing

0 Answers   Leader Valves,

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Are all metals heavy? Explain.

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what are the causes of delayed fracture in case hardened steels?

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What is the use of worm gears?

0 Answers   NIC,

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What kind of shell systems are used for investment casting?

2 Answers  

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