How many molecules per unit cell are there in a face centred cubic lattice ?

Related Mcqs:

1. How many atoms are there per unit cell in a body centred cubic lattice system ?

   A. 6
   B. 5
   C. 3
   D. 2

2. Materials having _____________ lattice structure are usually most ductile?

   A. FCC
   B. BCC
   C. HCP
   D. Cubic

3. Caustic soda is produced in a mercury cell having anode and cathode made respectively of moving mercury and_________________?

   A. Moving mercury and graphite
   B. Graphite and moving mercury
   C. Moving mercury and carbon
   D. Moving mercury and crimped steel wire

4. Bell metal is an alloy of __________________?

   A. Copper & zinc
   B. Copper & tin
   C. Copper & nickel
   D. Zinc & tin

5. Slow and progressive deformation of a material with time under constant stress is called___________________?

   A. Creep
   B. Erosion
   C. Resilience
   D. None of these

6. Hardest material so far found is__________________?

   A. Diamond
   B. Graphite
   C. Carborundum
   D. Pumice stone

7. Plasticisers are added to polymers to improve their____________________?

   A. Tensile strength
   B. Softness & flexibility
   C. Acid resistance
   D. Alkali resistance

8. High degree of toughness is a must for__________________?

   A. High speed steel
   B. Shock resisting steel
   C. Cold work tool steel
   D. None of these

9. Residual magnetism in steel for magnets is increased by the addition of__________________?

   A. Nickel
   B. Cobalt
   C. Tungsten
   D. Chromium

10. The formation of oxide film on a metal due to atmospheric exposure reduces its____________?

    A. Toughness
    B. Stiffness
    C. Creep limit
    D. All A., B. & C.