Dental Materials MCQs

Page No. 43

The term ordered hardening heat treatment used in which of the following dental alloys ?


aGold-Copper

✓


bNickel-Chromium

✖


cNickel-Titanium

✖


dSilver-Palladium

✖


View Answer Gold-Copper

Stages of annealing in order_________________?


aRecovery recrystallization grain growth

✓


bRecrystallization recovery, grain growth

✖


cGrain Growth Recrystallization recovery

✖


dMelting point, grain growth, Recrystallization

✖



Nickel is added to wrought gold alloys as______________?


aStrengthener

✓


bHardener

✖


cWhitens the alloy

✖


dScavenger

✖


View Answer Strengthener

Modern dental noble metal casting alloys generally have equiaxed fine grain structures because of the incorporation of small amounts of______________?


aChromium

✖


bIndium

✖


cIrridium

✓


dPalladium

✖


View Answer Irridium

Which of the following cast gold alloys is used for fabricating partial denture frameworks______________?


aType I – Soft

✖


bType II– Hard

✖


cType III – Hard

✖


dType IV – Extra Hard

✓



The linear solidification shrinkage of Type IV Ni-Cr based alloys is_______________?


a2.3%

✓


b1.56%

✖


c1.37%

✖


d3%

✖


View Answer 2.3%

With indirect spruing. Which one of the following porosities can be minimised_______________?


aBack pressure porosity

✖


bLocalized shrinkage porosity

✓


cPinhole porosity

✖


dMicro porosity

✖



The effects associated with cold working can be eliminated by a heat treatment called______________?


aAge hardening heat treatment

✖


bAnnealing heat treatment

✓


cHomogenization heat treatment

✖


dSolution heat treatment

✖



Mechanical properties of Cp Titanium are similar to alloys_____________?


aType III and Type IV gold

✓


bType V and Type VI gold

✖


cType VII and Type VIII gold

✖


dNone of the above

✖



Compared with noble metals, base metals show_______________?


aIncreased hardness

✓


bIncreased ductility

✖


cBetter biocompatibility

✖


dIncreased density

✖


View Answer Increased hardness

Goto Page No.

Page 43 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