Pickling________________?

Metallurgy 26/09/2021

A. Is accomplished by soaking the casting in baking soda
B. Causes porosity in gold
C. Removes surface oxides from gold castings
D. Remove investment from gold casting

Related Mcqs:

    Glossy smooth margins of a casting are due to_____________?
    A. Shrinkage of alloy on cooling B. Investment breakdown C. Incomplete wax elimination D. Incomplete gas elimination...
    Gold content of an 18 carat alloy is______________?
    A. 25% B. 50% C. 75% D. 100%...
    Which of the following increases castability of base metal alloys________________?
    A. Tin B. Beryllium C. Molybdenum D. Carbon...
    Advantage of titanium over other base metal alloys_______________?
    A. Low weight B. Low cost C. Low strength D. Low melting point...
    The main form of iron carbide found in 18-8 steel________________?
    A. Martensite B. Ferrite C. Austenite D. Pearlite...

Leave a Reply

Your email address will not be published. Required fields are marked *