MCQOPTIONS
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MCQOPTIONS
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 | |
| 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 | |
| 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.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 | |
| 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, n<1 for dilatant fluids and n>1 for pseudo plastic fluids. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» D. False, True | |
| 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 | |
| 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. | |
| 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 | |
| 8. |
STATEMENT_1:_BROOKFIELD_VISCOMETER_IS_AN_EXAMPLE_OF_COAXIAL_CYLINDER_VISCOMETER.?$ |
| A. | |
| B. | True, False |
| C. | True, True |
| Answer» C. True, True | |
| 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 | |
| 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. | |
| 11. |
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. | |
| B. | True, False |
| C. | True, True |
| Answer» B. True, False | |
| 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. | |
| 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 | |
| 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. | |
| 15. |
Statement 1: Starch is _____ as its viscosity decreases with an increase in shear stress. |
| A. | |
| B. | Bingham, False |
| C. | Dilatant, True |
| Answer» D. | |
| 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 | |