Materials and Construction Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si) Do not have good resilience properties Do not require heat treatment for any of its applications Are used for leaf and coiled springs Is tempered at 850°C Do not have good resilience properties Do not require heat treatment for any of its applications Are used for leaf and coiled springs Is tempered at 850°C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Copper is dissolved from its ore by H₂SO₄ in a percolation tank made of High silicon iron (14% Si) Wood Reinforced concrete lined with lead Stainless steel High silicon iron (14% Si) Wood Reinforced concrete lined with lead Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cast iron and steel pipes are produced by __________ casting. Slush True centrifugal Die Investment Slush True centrifugal Die Investment ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Diamagnetic materials are magnetised Only slightly Strongly With eddy currents only In a direction opposite to that of the applied field Only slightly Strongly With eddy currents only In a direction opposite to that of the applied field ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following will have the highest melting point? Wrought iron Mild steel High carbon steel Pig iron Wrought iron Mild steel High carbon steel Pig iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Very high sulphur in pig iron makes Its hard and machinable All of these Its brittle and malleable Its casting unsound Its hard and machinable All of these Its brittle and malleable Its casting unsound ANSWER DOWNLOAD EXAMIANS APP
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