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. 43961 35-40 30-35 15-20 43961 35-40 30-35 15-20 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Needle valves are generally not used for Very accurate flow control Very large diameter pipes Smaller sizes of pipe High pressure throttling service Very accurate flow control Very large diameter pipes Smaller sizes of pipe High pressure throttling service ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.) Z.H/L.ρ L/Z.H.ρ H.ρ/L Z.H.ρ/L Z.H/L.ρ L/Z.H.ρ H.ρ/L Z.H.ρ/L ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases. Vapour & liquid load both Running cost of cooling water for condenser Running cost of steam for reboiler Fixed charges initially Vapour & liquid load both Running cost of cooling water for condenser Running cost of steam for reboiler Fixed charges initially ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Larger depth of liquid on the trays of a distillation column Results in higher pressure drop per tray Neither A nor B Both A & B Leads to high tray efficiency Results in higher pressure drop per tray Neither A nor B Both A & B Leads to high tray efficiency ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The minimum baffle height should be Equal to the impeller diameter 3/4 of the tank height Twice the tank diameter Twice the impeller diameter Equal to the impeller diameter 3/4 of the tank height Twice the tank diameter Twice the impeller diameter ANSWER DOWNLOAD EXAMIANS APP
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