Metallurgy Archives - Page 6 of 13 -

Dendrites in cst alloys form by mechanism of_________________?

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Dendrites in cst alloys form by mechanism of_________________?

A. Constitutional superconductivity
B. Constitutional supercooling
C. Constitutional supergriting
D. Constitutional supergraining

Dendrites in cst alloys form by mechanism of_________________? Read More »

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Compared with noble metals, base metals show_______________?

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Compared with noble metals, base metals show_______________?

A. Increased hardness
B. Increased ductility
C. Better biocompatibility
D. Increased density

Compared with noble metals, base metals show_______________? Read More »

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Mechanical properties of Cp Titanium are similar to alloys_____________?

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Mechanical properties of Cp Titanium are similar to alloys_____________?

A. Type III and Type IV gold
B. Type V and type VI gold
C. Type VII and type VIII gold
D. None of the above

Mechanical properties of Cp Titanium are similar to alloys_____________? Read More »

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

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

A. Age hardening heat treatment
B. Annealing heat treatment
C. Homogenization heat treatment
D. Solution heat treatment

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

Dental Materials, Medical Mcqs, Metallurgy

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

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

A. Back pressure porosity
B. Localized shrinkage porosity
C. hole porosity
D. Micro porosity

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

Dental Materials, Medical Mcqs, Metallurgy

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

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

A. 2.3%
B. 1.56%
C. 1.37%
D. 3%

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

Dental Materials, Medical Mcqs, Metallurgy

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

Dental Materials, Medical Mcqs, Metallurgy / admin

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

A. Type I – Soft
B. Type II – Hard
C. Type III – Hard
D. Type IV – Extra Hard

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

Dental Materials, Medical Mcqs, Metallurgy

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

Dental Materials, Medical Mcqs, Metallurgy / admin

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

A. Chromium
B. Indium
C. Irridium
D. Palladium

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

Dental Materials, Medical Mcqs, Metallurgy

Nickel is added to wrought gold alloys as______________?

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Nickel is added to wrought gold alloys as______________?

A. Strengtherner
B. Hardener
C. Whitens the alloy
D. Scavenger

Nickel is added to wrought gold alloys as______________? Read More »

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Stages of annealing in order_________________?

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Stages of annealing in order_________________?

A. Recovery recrystallization grain growth
B. Recrystallization recovery, grain growth
C. Grain Growth Recrystallization recovery
D. Melting point, grain growth, Recrystallization

Stages of annealing in order_________________? Read More »

Dental Materials, Medical Mcqs, Metallurgy