1. Correct property of the tilite alloy isCantilever up to 5 mm can be givenIdeal for implantsBonding to porcelain is more as compare to noble metalComposition is nickel, chromium, molybdenum, titaniumQuestion 1 of 20 2. Pyroplastic flow in dental porcelainIs decreased with a low soda/potash ratioShould optimally be highIs determined by potash formIs not an important considerationQuestion 2 of 20 3. Which of these is moisture active adhesive?Methyl methacrylateAll of the aboveCyanoacrylateBis-GMAQuestion 3 of 20 4. A very active metal which is gas at room temperature isHydrogenMercuryGalliumOxygenQuestion 4 of 20 5. which orthodontic wire shows shape memoryTMAa-TiNiTiCo-CrQuestion 5 of 20 6. Principle hardener in gold alloy isCopperZincSilverPalladiumQuestion 6 of 20 7. when force is applied perpendicular to the metal surface,resultant deformation iscompressive straintensile strainshearing stresstensile stressQuestion 7 of 20 8. Polysulfide impression material should be:poured immediatelypoured within 30 minutespoured within 15 minutespoured within 1 hourQuestion 8 of 20 9. Use of type II ZOE cement:Temporary cementationTemporary restorationPermanent cementationIntermediate restorationQuestion 9 of 20 10. Cerrobend alloy ishigh fusing metal for positioning or shielding stentlow fusing material for removing memory patternslow fusing metal for positioning or shielding stenthigh fusing metal for removing memory patternsQuestion 10 of 20 11. Not associated with corrosion products in metal alloysSulphidesCarbonatesChloridesOxidesQuestion 11 of 20 12. The aramid and ribbond fibers are used to strengthenAcrylic resinGlass ionomerPolyether materialCeramicQuestion 12 of 20 13. Cavity Varnish is used with:Glass IonomerCompomerAmalgamCompositeQuestion 13 of 20 14. In orthodontic stainless steel wire which of the following is used to reduce hardness?CobaltSiliconeChromiumCarbonQuestion 14 of 20 15. Palladium and platinum are added to base metal alloys to:Act as scavengerAs grain refinersReduce brittlenessImpart colorQuestion 15 of 20 16. In orthodontic stainless steel wire, content of carbon is1-1.2 percent0.6 -0.8 percent6-8 percent12-20 percentQuestion 16 of 20 17. the activator for autopolymerising resin is likely to behydroquinoneheattertiary aminebenzoyl peroxideQuestion 17 of 20 18. Asbestos is used as a lining in a casting ring tofacilitate removal of the investment after casting.prevent fracture of the investment during heating.insulate against thermal conductivityallow for expansion of the investment.Question 18 of 20 19. the most important mechanical property involved when a base metal partial denture clasp is adjusted iselongationhardnesselastic imittensile strengthQuestion 19 of 20 20. Porcelain is strongest when in a state ofneutralitytensioncompressiontorsionQuestion 20 of 20 Loading...