MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Dairy Engineering Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
______________ tells how much heat passes through 1 m2 of the partition per 1°C of differential temperature. |
| A. | Friction coefficient |
| B. | Temperature coefficient |
| C. | Overall heat transfer coefficient |
| D. | Time coefficient |
| Answer» D. Time coefficient | |
| 2. |
Calculate temperature change: 20 000 l/h cheese milk (V1) is to be heated from 4°C to 34°C by 30 000 l/h hot water (V2) at 50°C. Density (r) and specific heat (cp) for milk are about 1020 kg/m3 and 3.95 kJ/kg, K and for water 990 (at 50°C) and 4.18. |
| A. | 20.5℃ |
| B. | 21.5℃ |
| C. | 18.8℃ |
| D. | 19.5℃ |
| Answer» E. | |
| 3. |
“A roof accumulates solar heat during the day and radiates the heat at night” is an example of which of the following way of heat transfer? |
| A. | Conduction |
| B. | Convection |
| C. | Radiation |
| D. | Filtration |
| Answer» D. Filtration | |
| 4. |
“The spoon is rinsed in running cold water. Heat gets absorbed by the water and the spoon gets cooler, until the spoon and the water are at the same temperature” is an example of which of the following way of heat transfer? |
| A. | Conduction |
| B. | Convection |
| C. | Radiation |
| D. | Filtration |
| Answer» C. Radiation | |
| 5. |
“Heat transferred from the bowl of the spoon to the handle” is an example of which of the following way of heat transfer? |
| A. | Conduction |
| B. | Convection |
| C. | Radiation |
| D. | Filtration |
| Answer» B. Convection | |