Materials and Construction The presence of impurities in iron Decreases its melting point Does not affect its melting point Makes it malleable Increases its melting point Decreases its melting point Does not affect its melting point Makes it malleable Increases its melting point ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction In order to be called steel, an alloy should have iron percentage greater than 50 70 90 80 50 70 90 80 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Soap kettle used in the production of laundry soap is made of Steel with top section nickel clad or stainless steel Concrete Nickel Cast iron Steel with top section nickel clad or stainless steel Concrete Nickel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is the softest material? Flourite Corrundum Calcite Quartz Flourite Corrundum Calcite Quartz ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Rubber lined vessels are corroded by the action of All of these Sulphuric acid (95%) Chloroform Aqua regia All of these Sulphuric acid (95%) Chloroform Aqua regia ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Plasticisers are added to polymers to improve their Softness & flexibility Tensile strength Alkali resistance Acid resistance Softness & flexibility Tensile strength Alkali resistance Acid resistance ANSWER DOWNLOAD EXAMIANS APP
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