Process Equipment and Plant Design The ratio of tube length to shell diameter in case of liquid shell and tube heat exchanger ranges from 3 to 5 2 to 3 6 to 12 4 to 8 3 to 5 2 to 3 6 to 12 4 to 8 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the case of a shell and tube heat exchanger, the logarithmic mean temperature difference 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 less than arithmetic average value Is always more than arithmetic mean value and the geometric mean 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 less than arithmetic average value Is always more than arithmetic mean value and the geometric mean value ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Factor of safety (i.e., overdesign factor) in heat transfer equipments is about __________ percent more than the actual/theoretical design factor. 15-20 30-35 43961 35-40 15-20 30-35 43961 35-40 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For a cylinderical vessel of moderate height, the weld joint efficiency for joints parallel to the cylinderical axis is given as 1.0, while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylinderical vessel, what value of weld joint efficiency should be used? 0.8 0.9 (0.8)0.5 1 0.8 0.9 (0.8)0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Needle valves are generally not used for Very large diameter pipes High pressure throttling service Smaller sizes of pipe Very accurate flow control Very large diameter pipes High pressure throttling service Smaller sizes of pipe Very accurate flow control ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The function of manholes provided in the shell of a distillation column is to Keep a check on the liquid gradient over the plate by direct visual observation Guard against foaming & entrainment by dumping antifoaming agent through it Give access to the individual trays for cleaning, maintenance and installation All of these Keep a check on the liquid gradient over the plate by direct visual observation Guard against foaming & entrainment by dumping antifoaming agent through it Give access to the individual trays for cleaning, maintenance and installation All of these ANSWER DOWNLOAD EXAMIANS APP
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