721.Energy required to fracture a material by sudden blow
A.Impact strength
B.yield strength
C.hardness
D.elastic modulus

722.Elastic modulus of enamel
A.17GPa
B.225GPa
C.65GPa
D.34GPa

723.Energy of the solid is not
A.Greater than its interior
B.Lesser than its exterior
C.Depends on shape of object
D.Changes with temperature

725.Liquid that shows decreased viscosity with increased strain until it reaches constant is
A.Newtonian fluid
B.Dilatant
C.Pseudo plastic
D.Thixotropic

726.Receptors for hue
A.Cones
B.Rods
C.Both acts together
D.Present in cornea

727.Two sets of force acting away from each others in a straight line on a body creates
A.Compressive stress
B.Tensile stress
C.Shear stress
D.None of the above

728.Thermal diffusibility of the material is not close to the tooth structure
A.GIC
B.Zinc phosphate
C.Composites
D.None of the above

729.Coefficient of thermal expansion of dentine is close to —
A.Enamel
B.CpTi
C.Composite
D.GIC

730.Solid solubility of metals depends on…
A.Atom size and valance
B.Chemical affinity and chemical structure
C.Chemical affinity only
D.Both a and b

NOTE
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