Category Archives: Separation Processes MCQ

This set of Separation Processes Multiple Choice Questions & Answers (MCQs) focuses on “Mechanical Separations in Biotechnology”. 1. Which of the following changes does not induce precipitation? a) pH b) Temperature c) Addition of salts d) Gravity 2. What is a special case of precipitation? a) Distillation b) Fractional distillation c) Sedimentation d) Crystallization 3. … Read more

This set of Separation Processes Question Bank focuses on “Centrifuge Devices for Solid Liquid Separations”. 1. What are the two general types of centrifuge devices for solid-liquid separations? a) Sedimentation centrifuges, filtering centrifuges b) Sedimentation centrifuges, decantation centrifuges c) Filtering centrifuges, sintering centrifuges d) Sedimentation centrifuges, two way centrifuges 2. What is the use of … Read more

This set of Separation Processes Question Bank focuses on “Design of Solid Liquid Cake-Filtration Devices Based on Pressure Gradients”. 1. What do the pressure filtration devices consist that remains suspended while allowing the fluid in which the solids are suspended to pass through? a) Semipermeable membrane b) Mesh barrier c) No barrier d) Column 2. … Read more

This set of Separation Processes Multiple Choice Questions & Answers (MCQs) focuses on “Drying of Byproducts”. 1. Which type of degradation process is found in live microorganisms? a) Destruction of cell membranes b) Preoxidation of lipids c) Gelatination of starch d) Derivation of some amino acids 2. Which type of degradation process is found in … Read more

This set of Separation Processes Multiple Choice Questions & Answers (MCQs) focuses on “Dryer Models”. 1. For a direct heat dryer, Dry bulb temperature Tgi=250F Wet bulb temperature is Tv=117F What is the value of outlet temperature if NT is 2? a) 100 b) 120 c) 135 d) 145 2. For a direct heat dryer, … Read more

This set of Separation Processes online quiz focuses on “Equilibrium-Moisture Content of Solids”. 1. Calculate the initial weight of moisture if one kg block of borax laundry soap with initial moisture content of 20.2% is dried and brought to 20%. a) 0.168 b) 0.234 c) 0.200 d) 0.300 2. Calculate the initial weight of moisture … Read more

This set of Separation Processes Multiple Choice Questions & Answers (MCQs) focuses on “Psychrometry-2”. 1. If the absolute humidity is 0.03 The mass of moisture free air is 50g The mass of moisture is 25g What is the molal humidity? a) 0.03 b) 0.06 c) 0.04 d) 0.1 2. If the absolute humidity is 0.02 … Read more

This set of Separation Processes Multiple Choice Questions & Answers (MCQs) focuses on “Psychrometry”. 1. What does the term absolute humidity mean? a) Moisture content of a gas by mass b) Moisture content of a gas by moles c) Ratio of humidity to humidity at saturation d) Temperature at which moisture begins to condense when … Read more

This set of Separation Processes Multiple Choice Questions & Answers (MCQs) focuses on “Bioproduct Crystallization”. 1. What does the Attrition mean? a) Coalescence of molecules b) Collision of solid crystals with each other c) Breakup of existing crystals in new particles d) Mechanism that gives different crystal size distributions 2. What does the term contact … Read more

This set of Separation Processes Multiple Choice Questions & Answers (MCQs) focuses on “Evaporation”. 1. Which of the following is a characteristic of a horizontal tube evaporator? a) Agitation is provided only by bubbles leaving the evaporator as vapor b) The tube bundle is arranged vertically, with the solution inside the tubes condensing outside c) … Read more