As mercury is cooled from room temperature to 3 K, its electrical behaviour changes from that of
A. conductor to insulator
B. semiconductor to insulator
C. conductor to superconductor
D. semiconductor to superconductor
Answer: Option C
A. conductor to insulator
B. semiconductor to insulator
C. conductor to superconductor
D. semiconductor to superconductor
Answer: Option C
A. creep
B. toughness
C. tensile strength
D. fatigue strength
Most important property of steels for use in automoblie bodies is
A. formability
B. yield strength
C. toughness
D. resilience
p-type semi-conductor can be obtained by doping silicon with
A. antimony
B. phosphorous
C. arsenic
D. boron
Liquid nitrogen containers can be made, from
A. ferritic stainless steel
B. HSLA steel
C. Titanium
D. Austenitic stainless steel
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