MCQOPTIONS
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MCQOPTIONS
This section includes 7 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, _a= / = K (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 _a= / = K (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 _a is related to shear stress ( ) and shear strain ( ) as _a= / .Statement 2: The equation =K n becomes _a= / = K (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 | |