Explore topic-wise MCQs in Food Engineering.

This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Food Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

Statement 1: Brookfield viscometer is very robust, is supported by software and even shows values of K and n, but, sometimes particles suspended in the fluid cause problems.Statement 2: Drawbacks of plate and cone viscometer: edge-effects, turbulence and temperature effects.

A. True, False
B. True, True
C. False, False
D. False, True
Answer» C. False, False
Discussion
2.

Statement 1: Brookfield viscometer is an example of Coaxial Cylinder Viscometer.Statement 2: Working principle of a Brookfield viscometer: Two coaxial cylinders. Liquid is filled in between them. The viscosity produces torque which is directly proportional to the shear stress.

A. True, False
B. True, True
C. False, False
D. False, True
Answer» C. False, False
Discussion
3.

Statement 1: Considering the equation, μ_a= τ/γ = Kγ(n-1) , for pseudo plastic fluids, n1.Statement 2: Cooked starch solution is a Shear thinning liquid and dairy cream is a Shear thickening liquid.

A. True, False
B. True, True
C. False, False
D. False, True
Answer» B. True, True
Discussion
4.

Statement 1: In μ_a= τ/γ = Kγ(n-1) , n = consistency index and K is the flow behaviour index.Statement 2: n= 1 for Newtonian fluids, n1 for pseudo plastic fluids.

A. True, False
B. True, True
C. False, False
D. False, True
Answer» D. False, True
Discussion
5.

Statement 1: Apparent viscosity μ_a is related to shear stress (τ) and shear strain (γ) as μ_a= τ/γ.Statement 2: The equation τ=Kγn becomes μ_a= τ/γ = Kγ(n-1) .

A. True, False
B. True, True
C. False, False
D. False, True
Answer» C. False, False
Discussion
6.

Statement 1: Blood is a _____Statement 2: Thixotropic fluids are fluids whose viscosity decreases when subjected to shear stress initially but eventually with time, the viscosity increases.

A. Newtonian fluid, False
B. Rheopectic, True
C. Pseudo plastic, False
D. Casson plastic, True
Answer» E.
Discussion
7.

Statement 1: Starch is _____ as its viscosity decreases with an increase in shear stress.Statement 2: Bingham plastics follow Newton’s law of viscosity at low shears.

A. Bingham, False
B. Dilatant, True
C. Pseudo plastic, False
D. Newtonian fluid, True
Answer» D. Newtonian fluid, True
Discussion
8.

STATEMENT_1:_BROOKFIELD_VISCOMETER_IS_AN_EXAMPLE_OF_COAXIAL_CYLINDER_VISCOMETER.?$

A.
B. True, False
C. True, True
Answer» C. True, True
Discussion
9.

Statement_1:_Brookfield_viscometer_is_very_robust,_is_supported_by_software_and_even_shows_values_of_K_and_n,_but,_sometimes_particles_suspended_in_the_fluid_cause_problems.$

A.
B. True, False
C. True, True
Answer» C. True, True
Discussion
10.

Which of the following is a name of an actual viscometer?

A. Capillary tube
B. Plate and Cone
C. Coaxial Cylinder
D. All of the mentioned
Answer» E.
Discussion
11.

Statement 1: Considering the equation, μ_a= τ/γ = Kγ(n-1) , for pseudo plastic fluids, n1.$

A.
B. True, False
C. True, True
Answer» B. True, False
Discussion
12.

Statement 1: In μ_a= τ/γ = Kγ(n-1) , n = consistency index and K is the flow behaviour index.$

A.
B. True, False
C. True, True
Answer» D.
Discussion
13.

Statement 1: Apparent viscosity μ_a is related to shear stress (τ) and shear strain (γ) as μ_a= τ/γ.$

A. </sup> .
B. True, False
C. True, True
D. False, False
Answer» C. True, True
Discussion
14.

Which of the flowing is true about two-parameter model?

A. It is also called as Ostwald-de Waele Model
B. The equation pertaining to it is τ=Kγ<sup>n</sup>
C. These equations pertain to Newtonian, dilatant and pseudo plastic fluids
D. All of the mentioned
Answer» E.
Discussion
15.

Statement 1: Starch is _____ as its viscosity decreases with an increase in shear stress.

A.
B. Bingham, False
C. Dilatant, True
Answer» D.
Discussion
16.

Rheology of food in the food processing industry is how the food is affected when _____ is applied.

A. Pressure
B. Butter
C. None of the mentioned
D. All of the mentioned
Answer» B. Butter
Discussion