Most of the common metals have ______________ crystal structure?

A. Lead, tin and cadmium
B. Copper, tin and zinc
C. Copper and lead
D. None of these

A. Aluminium
B. High silicon (14%) iron
C. Duralumin
D. Phosphor bronze

A. Fatigue
B. Endurance
C. Creep
D. None of these

A. Magnetic steel
B. Titanium
C. Chromium
D. Magnesium

A. Tempering
B. Normalising
C. Annealing
D. None of these

A. Harder
B. Protected from rusting
C. Alumina coated iron
D. None of these