The elastic of plastic deformation to fracture a material is its_______________?

Related Mcqs:

1. A man who had suffered from displaced fracture of mandible complains of pain in-old fracture site near mental foramen. There is a movable tender mass on palpation in the area The best preoperative diagnosis is_______________?

   A. Neuroleiomyoma
   B. Neurofibroma
   C. Trigeminal neuralgia
   D. Traumatic neuroma

2. One of the most important advantages of truly elastic impression material would be its capacity for______________?

   A. Close adaptation to soft tissues
   B. With drawl without permanent distortion
   C. Reproduction of surface details
   D. Compatibility with gypsum products

3. The ability of an alloy to withstand mechanical stresses without permanent deformation is reflected by its______________?

   A. Resilience
   B. Elastic limit / Elastic strain
   C. Hardness
   D. Fatigue resistance

4. Liquids which become more rigid as the rate of deformation increases is termed as_____________?

   A. Thixotropic
   B. Pseudoplastic
   C. Dilatant
   D. Newton

5. Deformation that is recovered upon removal of an externally applied force or pressure is known as_____________?

   A. Young’s modulus
   B. Plastic strain
   C. Elastic strain
   D. Flexural strain

6. All are desirable in the union of the fracture site except____________?

   A. Formation of fibrous joint or pseudoarthrosis
   B. Remodeling of bone
   C. Formation of blood clot
   D. Formation of procallus or osseous cells

7. For dental amalgam, the elastic modulus and tensile strength is______________?

   A. 40 Gpa and 60 – 100 Mpa
   B. 21 Gpa and 27 – 55 Mpa
   C. 350 Gpa and 10 – 120 Mpa
   D. 360 Gpa and 125 – 130 Mpa

8. Which one of the following impression materials is elastic, sets by a chemical reaction and is catalyzed by chloroplatinic acid_______________?

   A. Condensation silicone
   B. Polyether
   C. Polysulfide
   D. Poly vinyl siloxane

9. Most ideally elastic among the following_______________?

   A. Polyether
   B. Addition silicone
   C. Polysulphide
   D. Condensation silicone

10. Which one of the following is most elastic ?

    A. a titanium
    B. B titanium
    C. Chrome-cobalt-nickel
    D. Nickel-titanium