Process Equipment and Plant Design The diameter of a propeller agitator used in agitation tank ranges from __________ percent of the tank diameter and its peripherial speed is normally 300 to 500 metres/minute. 40 to 50 15 to 30 55 to 75 5 to 10 40 to 50 15 to 30 55 to 75 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress. Working Damaging None of these Allowable Working Damaging None of these Allowable ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design High pressure fluid in a shell and tube heat exchanger should preferably be routed through the Tubes to avoid the expansion of high pressure shell construction Shell side for smaller total pressure drop Shell side for large overall heat transfer co-efficient Shell side, if the flow is counter-current and tube side if the flow is co-current Tubes to avoid the expansion of high pressure shell construction Shell side for smaller total pressure drop Shell side for large overall heat transfer co-efficient Shell side, if the flow is counter-current and tube side if the flow is co-current ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Value of Peclet number = 0, is the representative of Complete back mixing Laminar flow Plug flow Eddy diffusivity = 0 Complete back mixing Laminar flow Plug flow Eddy diffusivity = 0 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscoisty above __________ poise. 1500 300 1000 600 1500 300 1000 600 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the design of a paddle agitator, the ratio (paddle dia/tank dia) is normally taken as 0.25 0.8 0.5 0.1 0.25 0.8 0.5 0.1 ANSWER DOWNLOAD EXAMIANS APP
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