Materials and Construction 'Semi steel' is Neither A nor B Produced by adding 10-20% steel to the cupola charge Stronger than cast iron Both A & B Neither A nor B Produced by adding 10-20% steel to the cupola charge Stronger than cast iron Both A & B ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Polythene (low or high density) containers are not corroded by Any of these Sulphuric acid (10%) at room temperature Nitric acid (95%) at room temperature Sulphur trioxide at 60°C Any of these Sulphuric acid (10%) at room temperature Nitric acid (95%) at room temperature Sulphur trioxide at 60°C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Age hardening is concerned with Brass Silver Copper Duralumin Brass Silver Copper Duralumin ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Refined acetic acid storage vessel are made of High carbon steel Aluminium Copper Nickel High carbon steel Aluminium Copper Nickel 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%)? High frequency transformers 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 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is the most widely used insulating material for steam carray-ing pipelines? Slag wool Glass wool and 85% magnesia Vermiculite Ceramic fibre blanket Slag wool Glass wool and 85% magnesia Vermiculite Ceramic fibre blanket ANSWER DOWNLOAD EXAMIANS APP
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