Hamad Metallurgy 19/11/2021 A. ¼ inch B. ½ inch C. 3/8 inch D. one inch Related Mcqs: Softening heat treatment of alloy increases_________________?A. Tensile strength B. Proportional limit C. Ductility D. Hardness... Heat hardening is the process done at_______________?A. Heating 750°C and slowly cooling to zero degree B. Heating quickly upto 450°C followed by sudden quenching C. Heating upto 250°C for 15 to 30 min D. Heating at 750°C and then quenching to room temperature... The best fuel gas when used with oxygen is______________?A. Hydrogen B. Natural gas C. Propane D. Acetylene... The effects associated with cold working can be eliminated by a heat treatment called______________?A. Age hardening heat treatment B. Annealing heat treatment C. Homogenization heat treatment D. Solution heat treatment... Impurities in casting is removed by________________?A. Annealing B. Degassing C. Pickling D. Conditioning...
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