Chemical Engineering Basics Rain drops falling through atmospheric air attain limited terminal velocity, because of Viscous force exerted by air Surface tension effects of water Upward thrust due to air Force of gravity Viscous force exerted by air Surface tension effects of water Upward thrust due to air Force of gravity ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Frost formation on the evaporator tubes in the domestic refrigerators Can be prevented by proper design Decreased compressor power Causes heat loss due to poor heat transfer Is immaterial Can be prevented by proper design Decreased compressor power Causes heat loss due to poor heat transfer Is immaterial ANSWER DOWNLOAD EXAMIANS APP
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 Troostite Sorbite Martensite Bainite Troostite Sorbite Martensite Bainite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics On increasing the yield strength of a steel from 450 to 650 MPa, its __________ will increase. Percent elongation Ultimate tensile strength (UTS) Modulus of resilience Modulus of toughness Percent elongation Ultimate tensile strength (UTS) Modulus of resilience Modulus of toughness ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Protection of ship hulls against sea water corrosion is done by coating with zinc because of the fact that zinc compared to iron is Reduced preferentially Oxidised preferentially Cheaper Lighter Reduced preferentially Oxidised preferentially Cheaper Lighter ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The predominant mode of heat transfer which takes place from boiler furnace to water walls of a boiler is Both A & B Convection Radiation Conduction Both A & B Convection Radiation Conduction ANSWER DOWNLOAD EXAMIANS APP
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