Metals and Alloys: A Dental Quiz
Metals and Alloys: A Dental Quiz
Test your knowledge about metals, alloys, and their applications in dentistry through this engaging quiz. Designed for those interested in the dental field, the questions cover fundamental concepts in material science.
- 18 multiple choice questions
- Assess your understanding of dental materials
- Applicable for students and professionals alike
Gold alloys and alloys containing chromium are used for making crowns, inlays and denture bases
True
False
With the exception of mercury, metals are gen- erally hard and lustrous at ambient temperatures, and have crystalline structures
True
False
Most of the instruments in dentistry are made of metals
True
False
Cold working application is a way of working under room temperature
True
False
The crystallization and the formation of crystals is initiated by the crystal nuclei
True
False
Which of the following represents an Alloy (according to the fig)
A
B
Which of the following represents pure metal (according to the fig) )
A
B
The crystals of metal can take the shape of :
Spherical shape
Dendritic shape
All of the above
grains are said to have an equiaxed grain structure
True
False
The grains have approximately the same dimensions in each direction, measured from the central nucleus
True
False
The concentration of grain boundaries increases as the grain size decreases.
True
False
Solid solution can take one two forms
True
False
Recrystallization can be used as a softening heat treatment.
True
False
The temperature below which work hardening is possible is termed the recrystallization temperature.
True
False
For an applied tensile force the maximum degree of extension is a measure of the malleability of the metal
False
True
For an applied compressive force the maximum degree of compression is a measure of malleability
True
False
The plane along which the dislocation moves is called a slip plane, and the stress required to initiate movement is the fracture stress
Both of these statements are true
The first one is true and the second one is false
Both of these statements are false
Metals are opaque and are good conductors of both heat and electricity
True
False
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