Binder used in Gypsum investment is_________________?
A. Silica
B. Quartz
C. Cristobolite
D. Calcium sulphate monohydrate
Dental Materials
Nickel-Titanium alloy has__________________?
Nickel-Titanium alloy has__________________?
A. Unreliable spring back
B. low spring back
C. Minimal spring back
D. None of the above
Advantage of titanium over other base metal alloys_______________?
Advantage of titanium over other base metal alloys_______________?
A. Low weight
B. Low cost
C. Low strength
D. Low melting point
Component of inlay wax which makes it flake resistant is_____________?
Component of inlay wax which makes it flake resistant is_____________?
A. Paraffin
B. Carnauba
C. Gum dammar
D. Canadelila
Microstructure of cobalt chromium alloy in cast condition is______________?
Microstructure of cobalt chromium alloy in cast condition is______________?
A. Fibrous
B. Homogeneous
C. Inhomogenous
D. amorphous
Dendrites in cst alloys form by mechanism of_________________?
Dendrites in cst alloys form by mechanism of_________________?
A. Constitutional superconductivity
B. Constitutional supercooling
C. Constitutional supergriting
D. Constitutional supergraining
Compared with noble metals, base metals show_______________?
Compared with noble metals, base metals show_______________?
A. Increased hardness
B. Increased ductility
C. Better biocompatibility
D. Increased density
Mechanical properties of Cp Titanium are similar to alloys_____________?
Mechanical properties of Cp Titanium are similar to alloys_____________?
A. Type III and Type IV gold
B. Type V and type VI gold
C. Type VII and type VIII gold
D. None of the above
The effects associated with cold working can be eliminated by a heat treatment called______________?
The effects associated with cold working can be eliminated by a heat treatment called______________?
A. Age hardening heat treatment
B. Annealing heat treatment
C. Homogenization heat treatment
D. Solution heat treatment
With indirect spruing. Which one of the following porosities can be minimised_______________?
With indirect spruing. Which one of the following porosities can be minimised_______________?
A. Back pressure porosity
B. Localized shrinkage porosity
C. hole porosity
D. Micro porosity