Materials and Construction Coke oven regenerators are made of __________ bricks. Low thermal conductivity Fire clay Silica High electrical conductivity Low thermal conductivity Fire clay Silica High electrical conductivity ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Invar used in thermocouples is an alloy of nickel and Chromium Copper Lead Iron Chromium Copper Lead Iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Wrought iron is having very high Susceptibility to changes in its properties by heat treatment Strength Corrosion resistance Hardness Susceptibility to changes in its properties by heat treatment Strength Corrosion resistance Hardness ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following pairs of elements may form an alloy? None of these Platinum & mercury Iron & carbon Iron & mercury None of these Platinum & mercury Iron & carbon Iron & mercury ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction For platinum thermocouples, lead wires are made of Copper & iron Copper & copper-nickel alloys Iron & nickel Tin & nickel Copper & iron Copper & copper-nickel alloys Iron & nickel Tin & nickel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of high amount of silicon in cast iron Increases the formation of graphite Reduces its fluidity Suppresses the decomposition of Fe₃ C Increases the contraction of the metal Increases the formation of graphite Reduces its fluidity Suppresses the decomposition of Fe₃ C Increases the contraction of the metal ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS