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Define what is the difference between plaster used in gold investment casting and ceramic used in the process of investment casting of automobile engine parts and turbine blades etc. When both are used in the lost-wax method?
992For define what reason would an aluminum casting, when applied with a powder coated paint finish, cause a poor finish to the paintwork.
1002what is the strongest metal? How would a salt and water solution clean a penny but a vinegar and salt solution will not clean a penny? Define what is the cause of this?
996Will aluminum alloy like 380 or 356 settle? Meaning while in “liquid form” above melting point will the heavier elements like copper, fe, silicon, zinc etc. Settle to the bottom of the liquid/molten aluminum after a period.
1029Define what are the compositions of brass, how can this metal be heat-treated, define what is the melting point of this metal?
990
Describe strain aging based on dislocation theory?
Define rivets.
Explain wear resistance of titanium?
What is hot working of metals? Give some of its principal methods.
How is metal heavy?
Throw some light on hardening abilities of metals?
What is the chemical composition of ceramics?
What is the use of damper?
How would a salt and water solution clean a penny but a vinegar and salt solution will not clean a penny? What is the cause of this?
What are the properties and application of manganese steel?
Do you know what metal might be considered the "most environmental"? I say aluminum because it can be recycled others on my team say brass.
Why we are doing post heating in alloy steel welding?
You are required to calculate a heat affected zone in weld. How would you do that?
What is the air fuel ratio for idling speed in S.I engines?
How gold can be separated from mercury?
