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). 250 450 750 650 250 450 750 650 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The normal range of velocity of steam in pipes is __________ m/sec. 1-5 10-20 0.1-0.5 80-100 1-5 10-20 0.1-0.5 80-100 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The dust collection efficiency of electrostatic precipitator increases with increase in the Gas flow rate Both A & B Neither A nor B Electrode area Gas flow rate Both A & B Neither A nor B Electrode area ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following types of reactors is the safest from operation point of view? A liquid phase reactor Pot type reactor A vapor phase reactor A liquid phase catalytic reactor A liquid phase reactor Pot type reactor A vapor phase reactor A liquid phase catalytic reactor ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following packing materials provides for maximum mass transfer? Lessig rings Raschig rings All of these Cross-partition rings Lessig rings Raschig rings All of these Cross-partition rings ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for diaofthe tank in question), the thickness of the courses of shell Remains same throughout Decreases upwards Increases upwards May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell Remains same throughout Decreases upwards Increases upwards May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell ANSWER DOWNLOAD EXAMIANS APP
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