Materials and Construction Coke oven walls are lined with __________ bricks. Low thermal conductivity Tar-dolomite Silica Fire clay Low thermal conductivity Tar-dolomite Silica Fire clay ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of even very minute amount (say 0.1%) of __________ in copper, reduces its electrical conductivity very seriously. Arsenic Bismuth Antimony Both B and C Arsenic Bismuth Antimony Both B and C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ steel is widely used for the manufacture of motor car crankshafts. Silicon Nickel High speed Chrome Silicon Nickel High speed Chrome ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Hot working of lead is carried out at Room temperature 75° C 373° K 150° C Room temperature 75° C 373° K 150° C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Ceramic materials All of these Are poor electrical conductors due to lack of free electrons Never exhibit polymorphism Are exemplified by clay and mica All of these Are poor electrical conductors due to lack of free electrons Never exhibit polymorphism Are exemplified by clay and mica ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C? Brass, cast iron, mild steel and tin Aluminium, copper, high silicon iron Nickel, monel, stainless steel and graphite Silicone rubber, teflon, procelain and wood Brass, cast iron, mild steel and tin Aluminium, copper, high silicon iron Nickel, monel, stainless steel and graphite Silicone rubber, teflon, procelain and wood ANSWER DOWNLOAD EXAMIANS APP