Chemical Engineering Basics Alloys having more than 80% copper are generally more Machinable Prone to season cracking Abrasion resistant Corrosion resistant Machinable Prone to season cracking Abrasion resistant Corrosion resistant ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Free oxygen is removed from boiler feed water, because it Causes explosion Reduces heat transfer co-efficient None of these Is corrosive Causes explosion Reduces heat transfer co-efficient None of these Is corrosive 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 Which of the following metals is the most prone to work hardening? Copper Lead Aluminium Brass Copper Lead Aluminium Brass ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The weight of a body at the centre of the earth is Infinite Zero Same as on the surface of the earth None of these Infinite Zero Same as on the surface of the earth None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following is not used as a fuel in rocket propellaht ? Liquid oxygen Liquid hydrazine Liquid hydrogen Kerosene oil Liquid oxygen Liquid hydrazine Liquid hydrogen Kerosene oil ANSWER DOWNLOAD EXAMIANS APP