Materials and Construction As the impurities are oxidised, the melting point of iron May increase or decrease ; unpredictable Decreases Remains unchanged Increases May increase or decrease ; unpredictable Decreases Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ is a donor impurity for semi-conductors. Boron Antimony Gallium None of these Boron Antimony Gallium None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Babbit metal (used for making bearings) comprises of Copper and aluminium Saw dust and iron dust mixture Zinc and aluminium Mainly tin (85%) and lead Copper and aluminium Saw dust and iron dust mixture Zinc and aluminium Mainly tin (85%) and lead ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of Stainless steel Lead lined steel Cast iron Rubber lined steel Stainless steel Lead lined steel Cast iron Rubber lined steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Brass container is suitable for storing Beer Phosphoric acid (95%) Aqueous ammonia H₂SO₄(95%) Beer Phosphoric acid (95%) Aqueous ammonia H₂SO₄(95%) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of high phosphorous in cast iron increases its Tensile strength Melting point Fluidity Shrinkage Tensile strength Melting point Fluidity Shrinkage ANSWER DOWNLOAD EXAMIANS APP
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