Which Of The Following Releases Single Wavelength Of Energy ?
Which Of The Following Releases Single Wavelength Of Energy ?
Argon Lasers | |
Pac | |
Led | |
Qth |
پاک اسٹڈی لائبریری اپنی خدمات کو بہتر کرنے کے لئے نئے سوفٹ وئیر انسٹال کررہی ہے ۔ اس لئے آئندہ کچھ دن آپ کو کچھ صفحات تک رسائی میں مشکلات کا سامنا ہوسکتا ہے ۔ جس کے لئے ہم معذرت خواہ ہیں۔
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Which Of The Following Releases Single Wavelength Of Energy ?
Argon Lasers | |
Pac | |
Led | |
Qth |
Which Of The Following Refractory Is Used To Counteract Most Of The Expansion______
Corundum | |
Cristobalite | |
Quartz | |
Tridymite |
Which Of The Following Provide Opacity To Composite ?
None Of The Above | |
Bis-Gma | |
Tegdma | |
Ti02 |
Which Of The Following Properties Of Dental Materials Is Time Dependent______
Ultimate Strength | |
Creep | |
Resillience | |
Elastic Limit |
Which Of The Following Procedure Is Indicated To Produce Cross-Linking In The Polymerization Of Linear Chains Of Acrylic______
Increasing The Amount Of Heat Required For Linear Polymerization | |
Addition Of Difunctional Monomers | |
Addition Of Grain Refining Agents | |
Incorporation Of Terminating Agents |
Which Of The Following Physical Property Can Be Used To Estimate Indirectly The Proportional Limit Of Gold Alloys ?
Rockwell Hardness Number | |
Vickerss Hardness Number | |
Brinell Hardness Number | |
Knoop Hardness Number |
Which Of The Following Phases Of Dental Amalgam Has Minimum Strength______
Gamma 2 | |
Epsilon 1 | |
Gamma 3 | |
Gamma 1 |
Which Of The Following May Result If An Excessive Amount Of Monomer Is Incorporated Into An Acrylic Resin Mixture ?
Excessive Brittleness | |
Low Impact Strength | |
Excessive Expansion | |
Excessive Shrinkage |
Which Of The Following Is Used As Surface Hardener In Impression Material ?
2% Sodium Sulfate | |
2% Potassium Sulfate | |
0.2% Potassium Sulfate | |
4% Potassium Sulfate |
Which Of The Following Is True About Direct Filling Gold______
Properly Condensed Mat Gold Has No Voids | |
None Of The Above | |
Whatever May Be The Type Voids Are Inherent | |
Voids Can Be Avoided With Manual Condensation |
Which Of The Following Is True About Agar Hydrocolloid Impression Material ?
Facilitates Fabrication Of Metal Dyes | |
Solidfies Between 50 – 70°C | |
Cannot Register Fine Surface Details | |
Liquefies Between 71 – 100°C |
Which Of The Following Is The Main Constituent Of Porcelain______
Feldspar | |
Clay | |
Quartz | |
Kaolin |
Which Of The Following Is Present In The Powder Of The Acrylic Resin______
Benzoyl Peroxide | |
D-Methyl Paratolouidine | |
Methyl Methacrylate | |
Hydroquinone |
Which Of The Following Is Not True Of Polymethyl Methacrylate ?
Knoop Hardness Number 18 To 20 | |
Density Of 1.13 G/Cm3 | |
Modulus Of Elasticity Of 3.4 Gpa | |
Tensile Strength Of 60 Mpa |
Which Of The Following Is Not True About Elastomeric Impression ?
Putty – Wash Technique Of Impression Reduces Dimensional Change Of Setting | |
Single Mix Material Have Higher Viscosity | |
Shear Thinning Is Related To Viscosity Of Non Phase Impression Material | |
Improper Mixing Of Material Can Cause Permanent Deformation Of Impression |
Which Of The Following Is Not Affected By Saliva ?
Impression Paste | |
Impression Plaster | |
Silicon Impression Material | |
None Of The Above |
Which Of The Following Is Most Important In Strength Zoe______
Speed Of Mixing | |
Temperature Of Mixing Stab | |
Liquid Powder Ratio | |
Addition Of Few Drops Of Water |
Which Of The Following Is Function Of Fluoride Flux In Soldering Process ?
It Prevents The Formation Of Chromium Oxide Or Dissolves Chromic Oxide Layer | |
Increase The Strength Of Solder | |
It Prevents The Formation Of Copper Oxide | |
It Prevents The Flow Of Material In Undesirable Area |
Which Of The Following Is Correct Regarding Chemical Setting Of Condensation Silicone______
Polymerization Occurs With Repeated Elimination Of Small Molecules | |
Polymerization Occurs With Elimination Of Single Byproduct | |
By Condensation Of Repeated Molecules Of Monomers | |
Condensation Does Not Occur At All |
Which Of The Following Is Correct Glass Transition Temperature Of Impression Compound ?
100°C | |
39°C | |
43.5°C | |
65°C |
Which Of The Following Is Correct Arrangement Of Impression Material Regarding Linear Contraction In Ascending Order ?
Condensation Silicone < Polyether < Polysulfide < Addition Silicone | |
Addition Silicone < Polyether < Polysulfide < Condensation Silicone | |
Addition Silicone < Polysulfide < Polyether < Condensation Silicone | |
Condensation Silicone < Polysulfide < Polyether < Addition Silicone |
Which Of The Following Is Common To Both Zinc Eugenol Cement And Polycarboxylate Cement?
Chemical Bond To Tooth Structure | |
Chelation | |
Substitution O Eugenol By Eba To Increase Strength Of Cement | |
Polyacrylic Acid Is Liquid |
Which Of The Following Is An Example Of A Composite Material ?
Colloidal Silica | |
Gold Alloy | |
A Filled Resin | |
Wax |
Which Of The Following Inhibitor Accelerator System Uses Light Activation Composite ?
Diketone-Amine | |
Organic Acid-Peroxide | |
Organic Acid-Metal Oxide | |
Peroxide-Amine |
Which Of The Following Increases Castability Of Base Metal Alloys______
Beryllium | |
Tin | |
Carbon | |
Molybdenum |