Disadvantage of having a short sprue is________________?

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...

Heat hardening is the process done at_______________?

A. Heating 750°C and slowly cooling to zero degree B. Heating quickly upto 450°C followed by sudden quenching C. Heating upto 250°C for 15 to 30 min D. Heating at 750°C and then quenching to room temperature...

The deoxidizing agent added to dental alloys is______________?

A. Palladium B. Silver C. Copper D. Zinc...

During soldering, the solidus temperature of the filler material should be_____________?

A. Greater than the substrate material B. Lesser than the substrate material C. Equal to the substrate material D. Temperature not relevant...

Tempering of steel cause________________?

A. Increases its toughness B. Increases hardness C. Increase ductility D. decreases its toughness...