1. the main advantage of a natural glaze rather than an applied glaze is that the natural glazeis easier to achieveoffers best estheticsis more permanentrequires a lower firing temperatureQuestion 1 of 20 2. the heat treatment of soaking the alloy at a high temp to produce a solid solution followed by quenching is known assolution heat treatmentage hardeningliquid heat treatmentstrain hardening heat treatmentQuestion 2 of 20 3. oxides of all of the following elements in noble metal alloys help in bonding to porcelain exceptirontinnickelindiumQuestion 3 of 20 4. a cermet is a combination ofthe powders of polycarboxylate and composite resin cementsconventional and aluminous ceramic powderssilver amalgam powder and glass ionomer powderfeldspar and quartzQuestion 4 of 20 5. the process of driving off the water of crystallisation of gypsum to manufacture powders of plaster and stone is calledcalciningcrazingfusingsinteringQuestion 5 of 20 6. Not associated with corrosion products in metal alloysCarbonatesOxidesChloridesSulphidesQuestion 6 of 20 7. The chamelon effect has been portrayed by which of the ceramic restorationsDicorIn ceramCerestoreCerecQuestion 7 of 20 8. Stain removing commercial denture cleanser usually containSodium hypochloriteSoda ashPotassium perborateSodium perborateQuestion 8 of 20 9. Young's modulus is defined as:Stress/strain below elastic limitLimit where a material shows plastic defonnationArea under the stress strain curve till point of fractureStress/strain above elastic limitQuestion 9 of 20 10. the restorative material having hardness nearest to that of enamel issilicate cementmicrofilled composite resinamalgamdirect filling goldQuestion 10 of 20 11. According to ADA specifications, maximum flow of Type I inlay wax at 37 degrees:3percent10percent2percent1percentQuestion 11 of 20 12. what filler is used in impression compound "alginate"sodium phosphatecalcium alginatediatomaceous earthsodium bicarbonateQuestion 12 of 20 13. methyl methacrylate can be activated by all of the following exceptlead peroxideheatsulfuric acid derivativestertiary aminesQuestion 13 of 20 14. which of the following will form a peritectic alloysilver and tinsilver and coppersilver and goldsilver and palladiumQuestion 14 of 20 15. Which of the following property of amalgam is adversely affected by triturating with mechanical deviceHardness of final mixtureGloss of final mixtureLess tarnish resistanceWorking timeQuestion 15 of 20 16. Mercaptan are a component of:PolysulphideCondensation siliconePolyetherAddition siliconeQuestion 16 of 20 17. During final finishing of composite you find a void, what will you do:Remove entire composite and refill itFill with composite after etching, application of bonding agentLeave as it isRe-etch and fill the compositeQuestion 17 of 20 18. When using which impression material can you delay pouring up of the model for up to one week?reversible hydrocolloidpolysulfidePolyetherpoly vinyl siloxaneQuestion 18 of 20 19. In orthodontic stainless steel wire which of the following is used to reduce hardness?SiliconeChromiumCarbonCobaltQuestion 19 of 20 20. condensation shrinkage during porcelain firing is determined bysize and shape of particletype of investment usedrate of firinguniform distriution of particle sizeQuestion 20 of 20 Loading...