Incomplete casting is the result of_____________?

Metallurgy 28/01/2021

A. More porous investment in the mould
B. Narrow sprue diameter
C. Hollow sprue pin
D. Large reservoir

Related Mcqs:

    The function of a sprue is to_______________?
    A. Form an opening of molten metal to enter the mold B. Help polish cast restorations C. Eliminate air bubbles on the wax pattern D. Reproduce fine detail...
    The sprue in wax pattern should be placed________________?
    A. At right angle B. At 45°C angle C. At obtuse angle D. It depend upon type of wax pattern...
    In Base metal alloys, Corrosion resistance occurs due to___________________?
    A. Passivity B. High Fusion Temperature C. High Molecular Weight D. Co-efficient of Thermal Expansion...
    Which one of the following categories of dental materials has the highest thermal conductivity_________________?
    A. Unfilled acrylic plastics B. Gold alloys C. Porcelains D. Zinc phosphate cements...
    The contraction of gold alloy on solidifying is approximately_____________?
    A. 0.4% B. 1.4% C. 2.4% D. 3.4%...

Leave a Reply

Your email address will not be published.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