Chemical Engineering Basics Lead is added to 60:40 brass primarily to improve Corrosion resistance Strength Fluidity Machinability Corrosion resistance Strength Fluidity Machinability ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Cold cracking in the heat affected zone of a high strength steel weld can take place because of the Martensite formation Relatively high sulphur content in the base metal Sufficient hydrogen present in the welding arc Retained austenite Martensite formation Relatively high sulphur content in the base metal Sufficient hydrogen present in the welding arc Retained austenite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Tempering of a material does not improve its Softness Machinability Toughness Internal stress level Softness Machinability Toughness Internal stress level ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics What is the effect on the performance of the economiser in the thermal power plant boiler, if the feed water temperature is very low due to preheaters being out for repairs or starving of steam supply ? Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Economiser tube life increases due to handling of low temperature water Scale formation rate on economiser tubes increases Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Economiser tube life increases due to handling of low temperature water Scale formation rate on economiser tubes increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The most detrimental impurity in high pressure boiler feed water is Silica Dissolved salt Suspended salt Turbidity Silica Dissolved salt Suspended salt Turbidity ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics __________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength. Slugging Shot peening Spinning Lancing Slugging Shot peening Spinning Lancing ANSWER DOWNLOAD EXAMIANS APP
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