Materials and Construction Molybdenum steels containing 0.15 to 0.40% molybdenum Have very poor fatigue resistance Are used for automobile parts like gears, axle, shaft, bearings etc Do not contain nickel or chromium or both Are prone to temper brittleness Have very poor fatigue resistance Are used for automobile parts like gears, axle, shaft, bearings etc Do not contain nickel or chromium or both Are prone to temper brittleness ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cermets are used for making Cutting tools Neither A nor B Abrasives Both A & B Cutting tools Neither A nor B Abrasives Both A & B ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The temperature at which new grains are formed in the metal is called the __________ temperature. Recrystallisation Eutectic Upper critical Lower critical Recrystallisation Eutectic Upper critical Lower critical ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Copper is dissolved from its ore by H₂SO₄ in a percolation tank made of Reinforced concrete lined with lead Stainless steel High silicon iron (14% Si) Wood Reinforced concrete lined with lead Stainless steel High silicon iron (14% Si) Wood ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Spark plugs, ignition tubes and electrodes are made of nickel __________ alloys. Manganese Beryllium Copper Iron Manganese Beryllium Copper Iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is produced by addition polymerisation? Urea-formaldehyde Phenol formaldehyde Polybutadiene Dacron Urea-formaldehyde Phenol formaldehyde Polybutadiene Dacron ANSWER DOWNLOAD EXAMIANS APP
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