Materials and Construction Presence of high amount of silicon in cast iron Increases the formation of graphite Suppresses the decomposition of Fe₃ C Reduces its fluidity Increases the contraction of the metal Increases the formation of graphite Suppresses the decomposition of Fe₃ C Reduces its fluidity Increases the contraction of the metal ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si) Is tempered at 850°C Are used for leaf and coiled springs Do not have good resilience properties Do not require heat treatment for any of its applications Is tempered at 850°C Are used for leaf and coiled springs Do not have good resilience properties Do not require heat treatment for any of its applications ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Thermosetting resins are those polymers, which None of these Do not take on a permanent set Allow slip to occur between molecules Do not increase in plasticity with rise in temperature None of these Do not take on a permanent set Allow slip to occur between molecules Do not increase in plasticity with rise in temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Fatigue failure of a material results from __________ stress. Compressive None of these Fluctuating Tensile Compressive None of these Fluctuating Tensile ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The crystal structure of most of the common metals is None of these Hexagonal Orthorhombic Cubic None of these Hexagonal Orthorhombic Cubic ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Corrosion resisting properties of cast iron are significantly improved by the addition of 12 - 15% of Vanadium Tungsten All of these Silicon Vanadium Tungsten All of these Silicon ANSWER DOWNLOAD EXAMIANS APP
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