Home / MCQ Bank / Metallurgical Engineering

Metallurgical Engineering Metallurgical Thermodynamics And Kinetics Difficulty: Medium

'T'h'e' 'd'i'f'f'e'r'e'n'c'e' 'i'n' 'r'e'v'e'r's'i'b'l'e' 'p'o't'e'n't'i'a'l' 'b'e't'w'e'e'n' 'o'x'y'g'e'n' 'r'e'd'u'c't'i'o'n' 'r'e'a'c't'i'o'n' 'a'n'd' 'h'y'd'r'o'g'e'n' 'e'v'o'l'u't'i'o'n' 'r'e'a'c't'i'o'n' 'o'f' 'a'n'y' 'p'H' 'i'n' 'a'n' 'a'q'u'e'o'u's' 'e'l'e'c't'r'o'l'y't'e' 'i's' '.' '.' '.' '.' '.' '.' '.' '.' 'v'o'l't'.' '['G'i'v'e'n',' 's't'a'n'd'a'r'd' 'r'e'd'u'c't'i'o'n' 'p'o't'e'n't'i'a'l's' 'f'o'r' 'h'y'd'r'o'g'e'n' 'e'v'o'l'u't'i'o'n' 'r'e'a'c't'i'o'n',' '$'$''f'r'a'c'{'{'{'E'^' ''c'i'r'c' '}'2'{'H'^' '+' '}'}'}'{'{'{'H'_'2'}'}'}' '=' 'O'V','S'H'E'$'$' 'a'n'd' 'o'x'y'g'e'n' 'r'e'd'u'c't'i'o'n' 'r'e'a'c't'i'o'n' ':' '$'$''f'r'a'c'{'{'{'E'^' ''c'i'r'c' '}'{'O'_'2'}'}'}'{'{'4'O'H'}'}' '=' '0'.'4'V','S'H'E'.'$'$' 'A'l's'o' 'P'H' '2' '=' 'P'O' '2' '=' '1' 'a't'm']' Identify the false statement. Match the planes in Group 1 with the interplaner spacings in Group 2 for a cubic crystal having a lattice parameter of 'α'. Group 1 Group 2 P. (100) 1. $$\frac{\alpha }{{\surd 5}}$$ Q. (110) 2. $$\frac{\alpha }{{\surd 3}}$$ R. (111) 3. $$\frac{\alpha }{{\surd 2}}$$ S. (210) 4. α 5. $$\frac{\alpha }{2}$$ 6. $$\frac{\alpha }{3}$$ Match the following: Group 1 Group 2 P. Fire refinning 1. Zirconium Q. Zone refinning 2. Nickel R. Refinning via carbonyl 3. Germanium S. Iodide refining 4. Copper Which of the following are not commercially manufactured by powder metallurgy