Most of the common metals have _________ structure?

Related Mcqs:

1. Which of the following factors affect resistivity of metals ?

   A. Age hardening
   B. Alloying
   C. Temperature
   D. Cold work
   E. All of the above

2. The co-ordination number of a simple cubic structure is______________?

   A. 2
   B. 4
   C. 6
   D. 8

3. The structure sensitive property of a super conductor is______________?

   A. critical magnetic field
   B. transition temperature
   C. critical current density
   D. none of the above

4. The number of atoms per unit cell in B.C.C. structure is_____________?

   A. 1
   B. 2
   C. 4
   D. 8

5. _________ is an example of piezoelectric material?

   A. Glass
   B. Quartz
   C. Corrundum
   D. Neoprene

6. Commonly used conducting materials are_____________?

   A. copper
   B. aluminium
   C. both (A) and (B)
   D. copper and silver
   E. platinum and gold

7. An H.R.C. fuse is_______________?

   A. a ceramic body having metal and caps
   B. a wire of platinum
   C. a heavy cross-section of copper or aluminium
   D. a ceramic tube having carbon rod inside it

8. In thermocouples which of the following pairs is commonly used ?

   A. Copper-constantan
   B. Aluminium-tin
   C. Silver-German silver
   D. Iron-steel

9. In a crystal, an atom vibrates at a frequency determined by_______________?

   A. the heat content of the crystal
   B. the temperature of the crystal
   C. the stiffness of the bonds it makes with neighbors

10. The photo-electric effect occurs only when the incident light has more than a certain critical____________?

    A. intensity
    B. speed
    C. frequency
    D. wave length