Heat Transfer In a backward feed multiple effect evaporator None of these No pumps are required between successive effects Feed flows from low pressure to high pressure Feed is introduced in the first effect None of these No pumps are required between successive effects Feed flows from low pressure to high pressure Feed is introduced in the first effect ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is correct ? Resistance = Driving force x Rate Rate = Driving force x Resistance Rate = Resistance/Driving force Driving force = Rate x Resistance Resistance = Driving force x Rate Rate = Driving force x Resistance Rate = Resistance/Driving force Driving force = Rate x Resistance ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A metal ball of radius 0.1 m at a uniform temperature of 90°C is left in air at 30°C. The density and the specific heat of the metal are 3000 kg/m³ and 0.4 kJ/kg.K respectively. The heat transfer co-efficient is 50 W/m².K Neglecting the temperature gradients inside the ball, the time taken (in hours) for the ball to cool to 60°C is 55.5 0.15 0.55 555 55.5 0.15 0.55 555 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in the distance between the heat source and the object receiving the heat, the radiation heat transfer Increases exponentially Remains unaffected Increases Decreases Increases exponentially Remains unaffected Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Film boiling occurs at __________ pressure. negative very high none of the listed here atmospheric negative very high none of the listed here atmospheric ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the unit of thermal conductivity ? Kcal/hr. m² °C Kcal/hr.m Kcal/hr.m.°C Kcal/hr. °C Kcal/hr. m² °C Kcal/hr.m Kcal/hr.m.°C Kcal/hr. °C ANSWER DOWNLOAD EXAMIANS APP
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