Unit Operations and Mass Transfer MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Unit Operations and Mass Transfer, a fundamental topic in the field of Food Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Unit Operations and Mass Transfer MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Unit Operations and Mass Transfer mcq questions that explore various aspects of Unit Operations and Mass Transfer problems. Each MCQ is crafted to challenge your understanding of Unit Operations and Mass Transfer principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Food Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Unit Operations and Mass Transfer MCQs are your pathway to success in mastering this essential Food Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Unit Operations and Mass Transfer. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Unit Operations and Mass Transfer knowledge to the test? Let's get started with our carefully curated MCQs!

Unit Operations and Mass Transfer MCQs | Page 7 of 19

Discover more Topics under Food Engineering

Q61.
Statement 1: Resistance is inversely proportional to the inter-facial area.
Statement 2: The inter-facial area of a body is the area of the dispersed phase in a unit volume of the vessel.
Discuss
Answer: (b).True, True
Q62.
Ratio of equilibrium concentrations of solute A in liquid phase and gas phase i.e. CAL* and CAg* respectively is Ξ±. Ξ± is called _____
Discuss
Answer: (b).Distribution coefficient
Q63.
Statement 1: Diffusion of gas component through the resistive film to the bulk of the liquid is the rate determining step.
Statement 2: Diffusion of gas component through the gas-liquid inter-phase is the rate determining step.
Discuss
Answer: (a).True, False
Q64.
In a packaging of dry grapes, the packaging material is made of polyethylene. The dry grapes have certain moisture content. Which of the following is true with respect to the diffusion of certain amount of moisture through the packing?
Discuss
Answer: (b).The diffusion in this case is called permeability
Q65.
Statement 1: Concentration is a product of diffusivity and solubility.
Statement 2: Permeability coefficient in case of food packaging can be written as product of partial pressure and solubility using Henry’s law.
Discuss
Answer: (b).True, True
Q66.
The existence of a thick constant film between two phases is a proposal by which of the following theories?
Discuss
Answer: (a).Film theory
Q67.
Statement 1: Penetration theory states that mass transfer coefficient is directly proportional to diffusivity coefficient which was later proved wrong.
Statement 2: Penetration theory states that mass transfer is based on unsteady mass transfer.
Discuss
Answer: (d).False, True
Q68.
Statement 1: In film theory, mass transfer coefficient is proportional to D¹/².

Statement 2: Penetration theory states that all elements are exposed at the same time which is unrealistic.
Discuss
Answer: (d).False, True
Q69.
Which theory proposes that the film is continuously getting renewed and replaced by the bulk liquid?
Discuss
Answer: (c).Surface renewal theory
Q70.
Statement 1: KLa is measured together and not separately.
Discuss
Answer: (a).True