Dental Materials MCQs

Page No. 51

Non metal which conducts elactricity______________?


aGraphite


bCarbon


cAcrylic


dPoreclain


View Answer Graphite

The melting point of silver is_____________?


a1063° Centigrade


b960° Centigrade


c850° Centigrade


d1123° Centigrade


View Answer 960° Centigrade

KHN value of Amalgam is_________________?


a90


b343


c67


d450


View Answer 90

Maxwell – Voigt Model is to determine________________?


aElastic Behaviour


bPlastic Behaviour


cViscoelastic Behaviour


dAll of the above



Materials which has high compressive strength and low tensile strength is classified with property of________________?


aDuctility


bBrittleness


cMalleability


dResilient


View Answer Brittleness

The simplest alloy is a_______________?


aSolid solution


bEutectic alloy


cPeritectic alloy


dTernary alloy


View Answer Solid solution

In measuring Vickers hardness no. Which of the following is used________________?


aSpherical indenter


bSteel ball indentation


cRhomboid shaped indenter


d136-degree diamond pyramid



A good adhesive should possess all of the following EXCEPT________________?


aHigh adherend wetting


bHigh contact angle


cLow contact angle


dHigh flow


View Answer High contact angle

Strain is defined as_____________?


aAn applied load or force


bA deformation resulting from an applied load


cAn external force opposing an applied load


dAn internal force opposing an applied load



The modulus of elasticity is defined as_______________?


aThe strain at the proportional limit


bThe stress at the proportional limit


cThe stress/strain ratio within the proportional limit


dNone of the above



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