Suck back porosity is due to_________________?

Related Mcqs:

Addition of large amounts of platinum to a casting gold alloy will________________?

A. Decrease its strength and ability to be hardened B. Decrease its tarnish resistance C. Increase its fusion temperature D. Redden the alloy...

Which of the following refractory is used to counteract most of the expansion________________?

A. Quartz B. Cristobalite C. Tridymite D. Corundum...

Casting flux is used to_______________?

A. Prevent the oxidation of the metal during melting B. increase the melting point of the flux C. Flaring the point of the sprue attachment D. None of the above...

The castability of chromium-cobait base metal alloys when compared to gold based noble metal alloys is_______________?

A. More B. Less C. Equal D. Depends on the alloy type...

Which of the waxes are derived from the lignite_________________?

A. Paraffin wax B. Inlay wax C. Microcrystalline wax D. Montan wax...