Process Equipment and Plant Design Holes of a sieve tray are arranged in triangular pitch of __________ times the hole diameter. 1.5 to 2 10 to 15 2.5 to 5 5 to 10 1.5 to 2 10 to 15 2.5 to 5 5 to 10 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.) 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 Z.H/L.ρ ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of None of these 20.2 20.8 2 None of these 20.2 20.8 2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity. 95 80 60 45 95 80 60 45 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in the number of shell passes, the value of FT Increases Remains same Remains same, only if the number of tube passes does not change Decreases Increases Remains same Remains same, only if the number of tube passes does not change Decreases ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches. 34 6 18 12 34 6 18 12 ANSWER DOWNLOAD EXAMIANS APP
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