Materials and Construction Which of the following is the hardest? Pearlite Ferrite Cementite Austenite Pearlite Ferrite Cementite Austenite ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its Machinability Corrosion resistance Tensile strength Compressive strength Machinability Corrosion resistance Tensile strength Compressive strength ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysterisis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%)? Induction motors Generators and small motors Armature of small motors/generators High frequency transformers Induction motors Generators and small motors Armature of small motors/generators High frequency transformers ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Spark plugs, ignition tubes and electrodes are made of nickel __________ alloys. Copper Manganese Beryllium Iron Copper Manganese Beryllium Iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Manganese in steel affects its Tensile strength Hardness Ductility None of these Tensile strength Hardness Ductility None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Coke oven walls are lined with __________ bricks. Low thermal conductivity Silica Fire clay Tar-dolomite Low thermal conductivity Silica Fire clay Tar-dolomite ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS