Heat Transfer Economy of a multiple effect evaporator is not influenced much by the rate of heat transfer temperature of the feed boiling point elevations ratio of the weight of the thin liquor to thick liquor rate of heat transfer temperature of the feed boiling point elevations ratio of the weight of the thin liquor to thick liquor ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer co-efficient (h1) for liquids increases with Decreasing temperature Decreasing Reynolds number Increasing temperature None of these Decreasing temperature Decreasing Reynolds number Increasing temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube Graetz number > 100 Exit-fluid temperature > wall temperature Exit fluid temperature < wall temperature Exit fluid temperature = wall temperature Graetz number > 100 Exit-fluid temperature > wall temperature Exit fluid temperature < wall temperature Exit fluid temperature = wall temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest overall heat transfer co-efficient? Water Air Molten sodium Dowtherm Water Air Molten sodium Dowtherm ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1000 Kg of liquid at 30°C in a well stirred vessel has to be heated to 120°C, using immersed coils carrying condensing steam at 150°C. The area of the steam coils is 1.2 m² and the overall heat transfer co-efficient to the liquid is 1500 W/m².°C. Assuming negligible heat loss to the surrounding and specific heat capacity of the liquid to be 4 kJ/kg.°C, the time taken for the liquid to reach desired temperature will be 22 min 15 min 44 min 51 min 22 min 15 min 44 min 51 min ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of __________ boiling, the liquid temperature is below the saturation temperature and the boiling takes place in the vicinity of the heated surface. Pool Saturated Nucleate Local Pool Saturated Nucleate Local ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS