Chemical Engineering Basics Austempering of steel requires.it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to Bainite Martensite Troostite Sorbite Bainite Martensite Troostite Sorbite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following is an example of stress corrosion ? Season cracking of brass Both (a) & (b) Neither (a) nor (b) Caustic embrittlement of steel Season cracking of brass Both (a) & (b) Neither (a) nor (b) Caustic embrittlement of steel 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 ? Scale formation rate on economiser tubes increases Economiser tube life increases due to handling of low temperature water 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 Scale formation rate on economiser tubes increases Economiser tube life increases due to handling of low temperature water 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 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Materials having resistivity ranging from 1 to 100 ohm. cm is termed as Insulator Semi-conductor None of these Conductor Insulator Semi-conductor None of these Conductor ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Carnot cycle is also termed as the constant __________ cycle in thermodynamics. Volume Entropy Heat Pressure Volume Entropy Heat Pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Unit of viscosity in CGS system is Gm . cm . sec⁻¹ Gm .cm⁻¹ sec⁻¹ Gm .cm⁻², sec⁻¹ Gm . cm² . sec⁻² Gm . cm . sec⁻¹ Gm .cm⁻¹ sec⁻¹ Gm .cm⁻², sec⁻¹ Gm . cm² . sec⁻² ANSWER DOWNLOAD EXAMIANS APP
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