Ultimate tensile strength refers to_________________?

Related Mcqs:

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

   A. Ductility
   B. Brittleness
   C. Malleability
   D. Resilient

2. Brazilian test is used to determine the ultimates tensile strength of_________________?

   A. Ductile materials
   B. Flexible materials
   C. Brittle materials
   D. Malleable materials

3. 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

4. The rapid decrease in tensile strength and increase in ductility of a wrought metal is seen in which stage of annealing ?

   A. Recovery stage
   B. Recrystallisation stage
   C. Grain growth stage
   D. All of the above

5. Drug efficacy refers to_________________?

   A. Range of disease in which the drug beneficial
   B. Maximal intensity of response that can be produced by the drug
   C. The therapeutic does range of the drug
   D. The therapeutic index of the drug

6. Munsell system is used to_________________?

   A. Define and measure colour qualitatively
   B. Define and measure physical properties of gold alloys
   C. Evaluate brittleness of different alloys
   D. Measures different colours quantitatively

7. Suck back porosity is due to_________________?

   A. Attached impurities on undersurface of casting
   B. Hot spot
   C. No rapid cooling
   D. Inadequate melting temperature

8. Green strength with reference to plaster means_____________?

   A. Dry strength
   B. Compressive strength
   C. Strength of dental stone due to green colour
   D. The wet strength

9. The ranking of tear strength from the lowest to highest of all impression materials generally is as follows_______________?

   A. Hydrocolloids, silicones, polyether, polysulfide
   B. Silicones, hydrocolloids, polyether, polysulfide
   C. Polysulfide, hydrocolloids, silicones, polyether
   D. Hydrocolloids, polyether, silicones, polysulfide

10. The strength of a gypsum investment is dependent on_______________?

    A. Carbon content
    B. Silica content
    C. Gypsum
    D. Copper