Dental Materials MCQs

Page No. 45

Air bubbles formed on the surface of casting is probably due to________________?


aImproper casting pressure


bImproper heating of the investment


cImproper angulation of sprue


dImproper wetting of the wax pattern by the investment



Suck back porosity is due to_________________?


aAttached impurities on undersurface of casting


bHot spot


cNo rapid cooling


dInadequate melting temperature


View Answer Hot spot

Silver plated dyes use an electrolytic bath of_______________?


aSilver fluoride


bSilver cyanide


cSilver bromide


dSilver iodide


View Answer Silver cyanide

Which of the waxes are derived from the lignite_________________?


aParaffin wax


bInlay wax


cMicrocrystalline wax


dMontan wax


View Answer Montan wax

Most biocompatible material in oral cavity is_______________?


aPlatinum


bPalladium


cTitanium


dGold


View Answer Titanium

Which one of the following categories of dental materials has the highest thermal conductivity_________________?


aUnfilled acrylic plastics


bGold alloys


cPoreclains


dZinc phosphate cements


View Answer Gold alloys

The rapid decrease in tensile strength and increase in ductility of a wrought metal is seen in which stage of annealing ?


aRecovery stage


bRecrystallisation stage


cGrain growth stage


dAll of the above



Corrosion of stainless steel is due to formulation of_________________?


aChromium carbide


bCarbon carbide


cIron carbide


dNickel carbide


View Answer Chromium carbide

The best pickling solution for gypsum bonded investment is_______________?


aHydrochloric acid


bNitric acid


cSulphuric acid


dPhosphoric acid


View Answer Hydrochloric acid

Shape memory is seen in________________?


aStainless steel wire


bNITTINOL wire


cTMA wire


dAluminium


View Answer NITTINOL wire

Goto Page No.

Page 45 of 62

Alphabetical MCQs Categories

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan