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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:_FILM-TYPE_CONDENSATION_HAS_A_HIGHER_HEAT_TRANSFER_CO-EFFICIENT_THAN_DROP-WISE_CONDENSATION.?$ |
A. | |
B. | True, False |
C. | True, True |
Answer» D. | |
2. |
The reciprocal of heat transfer co-efficient is ____? |
A. | Conductance |
B. | Resistance |
C. | Density |
D. | Temperature difference |
Answer» C. Density | |
3. |
Statement 1: hd/k is _____ |
A. | |
B. | Prandtl number, Prandtl number |
C. | Nussel number, Nussel number |
Answer» C. Nussel number, Nussel number | |
4. |
Why is better to use a Jacketed vessel in the dairy industry than a stainless steel container directly? |
A. | To prevent milk from charring |
B. | To have a better temperature control |
C. | The temperature of food in the film = temperature of the wall which is very high. Hence, jacketed vessels are needed |
D. | All of the mentioned |
Answer» E. | |
5. |
Statement 1: NPr= (Cp μ)/k$ |
A. | |
B. | True, False |
C. | True, True |
Answer» B. True, False | |
6. |
__________ is when nucleate boiling transforms to film boiling. |
A. | Critical temperature |
B. | Leiden frost point |
C. | Critical temperature & Leiden frost point |
D. | None of the mentioned |
Answer» C. Critical temperature & Leiden frost point | |
7. |
Which of the following is true about Natural Convection? |
A. | Low heat transfer |
B. | Due to gravity and natural buoyant forces |
C. | Dependent on viscosity, density and thermal conductivity |
D. | All of the mentioned |
Answer» E. | |