MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Food Processing Unit Operations knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which liquid has highest latent heat of vaporization? |
| A. | Water |
| B. | Alcohol |
| C. | Oil |
| D. | Mecury |
| Answer» B. Alcohol | |
| 2. |
Who discovered latent heat? |
| A. | Joseph Black |
| B. | Josiah Willard Gibbs |
| C. | Henri Becquerel |
| D. | Stephen Gray |
| Answer» B. Josiah Willard Gibbs | |
| 3. |
8.______ is the ability of a material to transmit a thermal disturbance. |
| A. | Specific heat |
| B. | Thermal diffusivity |
| C. | Entropy |
| D. | Latent heat |
| Answer» C. Entropy | |
| 4. |
Which of the following is not a thermal property in foods? |
| A. | Surface heat transfer coefficient |
| B. | Thermal diffusivity |
| C. | Specific volume |
| D. | Entropy |
| Answer» B. Thermal diffusivity | |
| 5. |
Are these statements about the specific heat true?
|
| A. | nStatement 2: Specific heat of foods decreases during freezing. |
| B. | True, False |
| C. | True, True |
| D. | False, True |
| E. | False, False |
| Answer» D. False, True | |
| 6. |
The effect of ______on the system is seen only as a phase change like the melting of ice. |
| A. | Specific heat |
| B. | Enthalpy |
| C. | Entropy |
| D. | Latent heat |
| Answer» E. | |
| 7. |
4.________ is the heat content in a system per unit mass. |
| A. | Specific heat |
| B. | Enthalpy |
| C. | Entropy |
| D. | Latent heat |
| Answer» C. Entropy | |
| 8. |
Thermal energy is transported through the molecules due to _______and _______ |
| A. | lattice waves, free electrons |
| B. | lattice waves, free protons |
| C. | free protons, free electrons |
| D. | lattice waves, longitudinal waves |
| Answer» B. lattice waves, free protons | |
| 9. |
The specific heat of a material can be determined by ______________ |
| A. | calorimetry |
| B. | manometers |
| C. | barometers |
| D. | anemometer |
| Answer» B. manometers | |
| 10. |
Specific Heat (kJ/kg K) of apple is ________ |
| A. | 1.88 |
| B. | 1.67 |
| C. | 1.76 |
| D. | 1.42 |
| Answer» B. 1.67 | |