Hamad CHEMICAL ENGINEERING 18/03/2023 A. Nickel B. Cobalt C. Aluminium D. Iron Related Mcqs: Filler material used in welding should have _________________ as compared to the parent metal to be welded ?A. Lower melting temperature B. Same melting temperature C. Same composition D. Both ‘B’ & ‘C’... Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?A. Vickers hardness test B. Shore scleroscope test C. Brinell hardness test D. Rockwell hardness test... The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as__________________?A. Rigid B. Tough C. Ductile D. Plastic... Catalyst used in the ‘catalytic converter’ employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is__________________?A. Alumina B. Platinum C. Vanadium pentoxide D. Iron oxide... Between 230 and 370°C, blue brittleness is caused in mild steel because of the_________________?A. Immobility of dislocation B. Strain-ageing C. Increase in Young’s modulus D. Strain hardening...
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