Electrical engineerning materials objective questions with explanations

Q no 1 . The converse of hardness is known as

                 a ) malleability

                 b ) toughness

                c ) softness

explanations

                         answer c ) softness

Q no 2 . The co-ordination number of simple cubic structureis

               a ) 2

               b ) 4

               c ) 6

              d ) 8

explanations

                         answer c ) 6

Q no 3 . The metal having the lowest temperature co-efficient of resistance is

             a ) gold

             b ) copper

             c ) aluminium

             d ) kanthal

explanations

                         answer a ) GOLD

Q no 4. The kinetic energy of a bounded electron is

            a ) less than that of unbounded electron

           b ) greater than that of unbounded electron

          c ) equal to that of unbounded electron

           d ) infinite

explanations

                         answer a ) less than that of unbounded electron