Engineering Materials Which of the following material has nearly zero coefficient of expansion? High speed steel Stainless steel Invar Heat resisting steel High speed steel Stainless steel Invar Heat resisting steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in cast iron Makes the iron soft and easily machinable Increases hardness and brittleness Make the iron white and hard Aids fusibility and fluidity Makes the iron soft and easily machinable Increases hardness and brittleness Make the iron white and hard Aids fusibility and fluidity ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Beryllium bronze contains 99% copper and 1% beryllium 97.75% copper and 2.25% beryllium 60% copper and 40% beryllium 80% copper and 20% beryllium 99% copper and 1% beryllium 97.75% copper and 2.25% beryllium 60% copper and 40% beryllium 80% copper and 20% beryllium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio 40 : 60 30 : 70 2.1180555555556 2.9375 40 : 60 30 : 70 2.1180555555556 2.9375 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Delta-iron occurs between the temperature ranges of 900°C to 1400°C 600°C to 900°C 400°C to 600°C 1400°C to 1530°C 900°C to 1400°C 600°C to 900°C 400°C to 600°C 1400°C to 1530°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Recrystallization temperature is one At which crystals grow bigger in size At which change of allotropic form takes place At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated At which crystals first start forming from molten metal when it is cooled At which crystals grow bigger in size At which change of allotropic form takes place At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated At which crystals first start forming from molten metal when it is cooled ANSWER DOWNLOAD EXAMIANS APP
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