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. |
For a copper pipe, k = 0.3534, temperature difference = 60, B = 0.0125 and A = 850. What is the value of q? |
| A. | 1442 W |
| B. | 1442 kW |
| C. | 1565 W |
| D. | 1565 kW |
| Answer» C. 1565 W | |
| 2. |
_____ is the equation for unsteady state heat conduction through solid materials. |
| A. | dT/dx= (d<sup>2</sup> T)/ (dt)<sup>2</sup> |
| B. | dT/dx= (d<sup>2</sup> T)/ (dx)<sup>2</sup> |
| C. | dT/dt= (d<sup>2</sup> T)/ (dx)<sup>2</sup> |
| D. | dT/dt= (d<sup>2</sup> T)/ (dt)<sup>2</sup> |
| Answer» D. dT/dt= (d<sup>2</sup> T)/ (dt)<sup>2</sup> | |
| 3. |
NFo= ( tT)/s2. Here s stands for half slab thickness. Based on this data, s for a chapatti/ dosa will be _____ |
| A. | Half slab thickness |
| B. | Full slab thickness |
| C. | One and a half slab thickness |
| D. | Double slab thickness |
| Answer» C. One and a half slab thickness | |
| 4. |
Statement 1: NFo stands for Fourier number.Statement 2: NFo= ( tT)/s2 |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» C. False, False | |
| 5. |
Statement 1: =k/( Cp)Statement 2: stands for thermal conductivity. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» B. True, True | |
| 6. |
Statement 1: When the average radius gives an error, log mean radius is used.Statement 2: Log mean radius is given by rL= ( r0 ri )/(ln(r0/ri)) |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» C. False, False | |
| 7. |
Statement 1: The heat transfer co-efficient in ice is four times that of water.Statement 2: k in conductance is for thermal conductivity. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» C. False, False | |