The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability ?

Related Mcqs:

1. According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to _______________ times the yield stress ?

   A. 0.5
   B. 2
   C. √2
   D. √3/2

2. The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the ‘Curie temperature’. Its value for cobalt is ______________ °C?

   A. 768
   B. 1127
   C. 1359
   D. 1480

3. Which of the following material handling equipments is not suitable for moving materials in varying paths ?

   A. Hand trolley
   B. Belt conveyor
   C. Crane
   D. Truck

4. In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates, should be________________?

   A. Higher, as it gives higher wavelength
   B. Lower, as it gives higher wavelength
   C. Higher, as it gives shorter wavelength
   D. Lower, as it gives shorter wavelength

5. A thin, flat & square plate measuring 2 m × 2 m is freely hanging in ambient air at 25°C. It is exposed to the solar radiation falling on one side of the plate at the rate of 500 W/m2. The plate temperature will remain constant at 30°C, if the convective heat transfer co-efficient is ________________ W/m2 °C ?

   A. 50
   B. 100
   C. 150
   D. 200

6. In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet ?

   A. Zirconia
   B. Alumina
   C. Bakelite
   D. Tungsten carbide

7. A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material ?

   A. Steel
   B. Glass
   C. Rubber
   D. Brass

8. _________________ property of a material is determined by the Herbert Pendulum device?

   A. Hardness
   B. Tensile
   C. Toughness
   D. Compressive

9. The property of material, by which a given amount of energy is absorbed by it, without plastic deformation, is called__________________?

   A. Resilience
   B. Toughness
   C. Ductility
   D. Impact strength

10. On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is__________________?

    A. Creep
    B. Toughness
    C. Tensile strength
    D. Fatigue