711. The malleting force is directed______________?
A. Parallel to long axis of crown
B. Perpendicular to the walls
C. 45° to the wall
D. None of the above
712. Pitting of direct filling old restoration usually results from_________________?
A. Poor finished preparation
B. Using contaminated gold foil
C. Improper stepping of condenser point
D. Using small condenser point
713. The cohesive gold used as bulk filler is_____________?
A. Spherical gold
B. Mat gold
C. Electra alloy
D. Gold foll
714. The point at which a stress of material exhibits a specific limited deviation P is called
715.The elastic or plastic deformation to fracture a material is
716.Maxwell-Voight model is to determine
D.all the above.
717.A mixture of two liquids that do not blend together to form one liquid is termed a (an):
718.Ability of a material to get plasticity deformed without fracture
719.One of the following is macro-hardness test
A. Vickers’s hardness test
B. Knoop’s hardness
C. shore &barcol’s durometer
D. Brinell’s hardness test
720.Maximum number of bends performed in cold bend test gives an indication of the _______ of the material.