Materials and Construction The main constituent of carborundum is __________ carbide. Aluminium Silicon Calcium Boron Aluminium Silicon Calcium Boron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Babbit metal (used for making bearings) comprises of Mainly tin (85%) and lead Zinc and aluminium Saw dust and iron dust mixture Copper and aluminium Mainly tin (85%) and lead Zinc and aluminium Saw dust and iron dust mixture Copper and aluminium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following alloying elements is present in maximum percentage in high speed steel. Chromium Vanadium Tungsten Molybdenum Chromium Vanadium Tungsten Molybdenum ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Copper is dissolved from its ore by H₂SO₄ in a percolation tank made of Wood High silicon iron (14% Si) Stainless steel Reinforced concrete lined with lead Wood High silicon iron (14% Si) Stainless steel Reinforced concrete lined with lead ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of even 0.005% of __________ in copper makes it highly brittle, rendering it useless for wire-drawing. Arsenic Antimony Bismuth Oxygen Arsenic Antimony Bismuth Oxygen ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction With increase in carbide/graphite ratio in cast iron, its Ductility decreases Neither A nor B Hardness & brittleness increases Both A & B Ductility decreases Neither A nor B Hardness & brittleness increases Both A & B ANSWER DOWNLOAD EXAMIANS APP
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