Engineering Materials In the lower part of the blast furnace (zone of fusion), the temperature is 400° to 700°C 800°C to 1000°C 1200°C to 1300°C 1500°C to 1700°C 400° to 700°C 800°C to 1000°C 1200°C to 1300°C 1500°C to 1700°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A material is known as allotropic or polymorphic if it Has its atoms distributed in a random pattern Has a fixed structure under all conditions Responds to heat treatment Exists in several crystal forms at different temperatures Has its atoms distributed in a random pattern Has a fixed structure under all conditions Responds to heat treatment Exists in several crystal forms at different temperatures ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Corrosion resistance of steel is increased by addition of Sulphur, phosphorus, lead Vanadium, aluminium Chromium and nickel Tungsten, molybdenum, vanadium, chromium Sulphur, phosphorus, lead Vanadium, aluminium Chromium and nickel Tungsten, molybdenum, vanadium, chromium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Free carbon in iron makes the metal Soft and gives a fine grained crystalline structure Hard and gives a fine grained crystalline structure Hard and gives a coarse grained crystalline structure Soft and gives a coarse grained crystalline structure Soft and gives a fine grained crystalline structure Hard and gives a fine grained crystalline structure Hard and gives a coarse grained crystalline structure Soft and gives a coarse grained crystalline structure ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The electric process of steel making is especially adapted to High speed tool steel All of these Alloy and carbon tool steel Magnet steel High speed tool steel All of these Alloy and carbon tool steel Magnet steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following impurity in cast iron makes it hard and brittle? Phosphorus Manganese Silicon Sulphur Phosphorus Manganese Silicon Sulphur ANSWER DOWNLOAD EXAMIANS APP
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