Explore topic-wise MCQs in Food Engineering Questions and Answers.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Food Engineering Questions and Answers 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.

A. Statement 2: Drawbacks of plate and cone viscometer: edge-effects, turbulence and temperature effects.
B. True, False
C. True, True
D. False, False
E. False, True
Answer» C. True, True
Discussion
2.

Statement 1: Brookfield viscometer is an example of Coaxial Cylinder Viscometer.

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

Statement 1: Considering the equation, μ_a= τ/γ = Kγ(n-1) , for pseudo plastic fluids, n<1 and they’re called Shear thinning liquids and dilatant fluids are called Shear thickening liquids as n>1.

A. Statement 2: Cooked starch solution is a Shear thinning liquid and dairy cream is a Shear thickening liquid.
B. True, False
C. True, True
D. False, False
E. False, True
Answer» B. True, False
Discussion
4.

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

A. Statement 2: n= 1 for Newtonian fluids, n<1 for dilatant fluids and n>1 for pseudo plastic fluids.
B. True, False
C. True, True
D. False, False
E. False, True
Answer» D. False, False
Discussion
5.

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

A. Statement 2: The equation τ=Kγn becomes μ_a= τ/γ = Kγ(n-1) .
B. True, False
C. True, True
D. False, False
E. False, True
Answer» C. True, True
Discussion
6.

Statement 1: Blood is a _____

A. Statement 2: Thixotropic fluids are fluids whose viscosity decreases when subjected to shear stress initially but eventually with time, the viscosity increases.
B. Newtonian fluid, False
C. Rheopectic, True
D. Pseudo plastic, False
E. Casson plastic, True
Answer» E. Casson plastic, True
Discussion