Materials and Construction Babbit metal (used for making bearings) comprises of Saw dust and iron dust mixture Copper and aluminium Zinc and aluminium Mainly tin (85%) and lead Saw dust and iron dust mixture Copper and aluminium Zinc and aluminium Mainly tin (85%) and lead ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Work hardening of a material Increases its ductility Decreases its ductility Decreases its tensile strength Does not affect its ductility Increases its ductility Decreases its ductility Decreases its tensile strength Does not affect its ductility ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Chilled iron castings are Soft on surface Easily machinable None of these Highly wear resistant Soft on surface Easily machinable None of these Highly wear resistant ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The fermentor used for the production of ethyl alcohol from molasses is made of Procelain Wood Concrete Copper bearing steel Procelain Wood Concrete Copper bearing steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The melleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the miximum malleability? Copper Lead Wrought iron Aluminium Copper Lead Wrought iron Aluminium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with Lead or acid-proof bricks Acidic refractory Karbate Rubber Lead or acid-proof bricks Acidic refractory Karbate Rubber ANSWER DOWNLOAD EXAMIANS APP
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