Materials and Construction Spark plugs, ignition tubes and electrodes are made of nickel __________ alloys. Manganese Copper Iron Beryllium Manganese Copper Iron Beryllium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Telfon (PTFE) is corroded by None of these Hydrochloric acid (95%) Hydrochloric acid (10%) Sulphuric acid None of these Hydrochloric acid (95%) Hydrochloric acid (10%) Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Steel rods are used in reinforced concrete to increase its __________ strength. Compressive Shear Tensile None of these Compressive Shear Tensile None of these 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 Silicone rubber, teflon, procelain and wood Aluminium, copper, high silicon iron Nickel, monel, stainless steel and graphite Brass, cast iron, mild steel and tin Silicone rubber, teflon, procelain and wood Aluminium, copper, high silicon iron Nickel, monel, stainless steel and graphite 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%)? Armature of small motors/generators High frequency transformers Generators and small motors Induction motors Armature of small motors/generators High frequency transformers Generators and small motors Induction motors ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cold work tool steel should have High toughness All of these High wear resistance Poor hardenability High toughness All of these High wear resistance Poor hardenability ANSWER DOWNLOAD EXAMIANS APP
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