The strength of a gypsum investment is dependent on_______________?

Related Mcqs:

Wax pattern is ideally invested immediately to decrease the dimensional changes caused by_______________?

A. Decrease flow B. Continuous expansion C. Relaxation of the internal stresses D. Water loss...

The porosity formed due to simultaneous nucleation of solid grains and gas bubbles at the first moment that metal freezes at the mold walls is called__________?

A. Pinhole porosity B. Gas inclusion porosity C. Micro porosity D. Subsurface porosity...

Within an hour after cementation of cast gold onlay patient complains of shooting pain every time the teeth comes together Most probable explanation is ______________?

A. Supracocclusion of restoration B. Retained cement in gingival sulcus C. Excess acid in mix D. Galvanic current caused by gold onlay occluding with a large restoration...

Microstructure of cobalt chromium alloy in cast condition is______________?

A. Fibrous B. Homogeneous C. Inhomogenous D. amorphous...

The rapid decrease in tensile strength and increase in ductility of a wrought metal is seen in which stage of annealing ?

A. Recovery stage B. Recrystallisation stage C. Grain growth stage D. All of the above...