Materials and Construction Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of Rubber lined mild steel Aluminium Lead lined mild steel Cast iron Rubber lined mild steel Aluminium Lead lined mild steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Hot working of lead is carried out at 373° K 150° C Room temperature 75° C 373° K 150° C Room temperature 75° C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Work hardening of a material Decreases its ductility Does not affect its ductility Increases its ductility Decreases its tensile strength Decreases its ductility Does not affect its ductility Increases its ductility Decreases its tensile strength ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property? Sulphur Silicon Phosphorus None of these Sulphur Silicon Phosphorus None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is the most elastic material? Steel Rubber Glass Plastic Steel Rubber Glass Plastic ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Graphite is a good Conductor of electricity Conductor of heat Thermal & electrical insulator Both B & C Conductor of electricity Conductor of heat Thermal & electrical insulator Both B & C ANSWER DOWNLOAD EXAMIANS APP
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