Process Equipment and Plant Design A stuffing box is used for Prevention of fluid leakage around moving parts Absorbing the contraction/expansion of pipeline due to temperature changes Facilitating smooth opening and closing of a valve Reducing the resistance of fluid flow Prevention of fluid leakage around moving parts Absorbing the contraction/expansion of pipeline due to temperature changes Facilitating smooth opening and closing of a valve Reducing the resistance of fluid flow ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds. 17.5 2.5 5 12.5 17.5 2.5 5 12.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The thickness of heat transfer plates used in the plate type heat exchanger ranges from __________ mm, pressed in a single piece provided with grooves & corrugations. 44055 0.3 to 0.8 3.5 to 7.0 1.25 to 3.125 44055 0.3 to 0.8 3.5 to 7.0 1.25 to 3.125 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Optimum economic pipe diameter for fluid flow is determined by the Density of the fluid Viscosity of the fluid Total cost considerations (pumping cost plus fixed cost of the pipe) None of these Density of the fluid Viscosity of the fluid Total cost considerations (pumping cost plus fixed cost of the pipe) None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as D = 1.1 t D = 1.6 √t D = 3√t D = 1.5 t D = 1.1 t D = 1.6 √t D = 3√t D = 1.5 t ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the case of a shell and tube heat exchanger, the logarithmic mean temperature difference May be either more or less than geometric mean and arithmetic mean value depending upon whether the flow of stream is co-current or counter-current Is always more than arithmetic mean value and the geometric mean value Is always less than arithmetic average value Is always less than arithmetic mean value, but more than geometric mean value May be either more or less than geometric mean and arithmetic mean value depending upon whether the flow of stream is co-current or counter-current Is always more than arithmetic mean value and the geometric mean value Is always less than arithmetic average value Is always less than arithmetic mean value, but more than geometric mean value ANSWER DOWNLOAD EXAMIANS APP
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