Process Equipment and Plant Design Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about __________ mm Hg (referred to a 760 mm mercury barometer). 750 250 650 450 750 250 650 450 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Column support for the roof of cylindrical storage tank must be provided for Small diameter tanks Small diameter tall tanks Large diameter tanks All of these Small diameter tanks Small diameter tall tanks Large diameter tanks All of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling. SO₂ None of these NH₃ CO₂ SO₂ None of these NH₃ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pick out the wrong statement pertaining to the design of a basket type evaporator. It is used for high viscosity liquor having large rate of scaling Downtake is formed by the annular space between the bundle and the shell There is no central downtake The tube bundle is suspended on bracket It is used for high viscosity liquor having large rate of scaling Downtake is formed by the annular space between the bundle and the shell There is no central downtake The tube bundle is suspended on bracket 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. 45 80 95 60 45 80 95 60 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio. 2.2 to 2.6 1.1 to 1.5 2.7 to 3 1.6 to 2 2.2 to 2.6 1.1 to 1.5 2.7 to 3 1.6 to 2 ANSWER DOWNLOAD EXAMIANS APP
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