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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 of the following is an important parameter in sun drying rate? |
A. | Convective heat transfer coefficient |
B. | Conductive heat transfer coefficient |
C. | Mass transfer coefficient |
D. | Dynamic mass transfer coefficient |
Answer» B. Conductive heat transfer coefficient | |
2. |
What are advantages of sun drying? |
A. | Economical and environmentally friendly |
B. | Fast drying and environmentally friendly |
C. | Environmentally friendly |
D. | Economical |
Answer» B. Fast drying and environmentally friendly | |
3. |
What type of air temperature and humidity do the solar driers generate? |
A. | Highair temperature, lowhumidity |
B. | Lowair temperature, high humidity |
C. | Lowair temperature, lowhumidity |
D. | Highair temperature, highhumidity |
Answer» B. Lowair temperature, high humidity | |
4. |
Are these statements about the solar dryer true?Statement 1: It is designed to collect and enhance solar radiation.Statement 2: This drier is faster than sun-drying |
A. | True, False |
B. | True, True |
C. | False, True |
D. | False, False |
Answer» C. False, True | |
5. |
What are the modes of heat transfer employed in solar drying systems? |
A. | Radiation and convection |
B. | Conduction and convection |
C. | Conduction and radiation |
D. | Radiation and conduction |
Answer» B. Conduction and convection | |
6. |
Are these statements about the location for the sun drying true?Statement 1:Low lying swampy areas are preferred for the sun drying of the products.Statement 2:High relative humidity is preferred. |
A. | True, False |
B. | True, True |
C. | False, True |
D. | False, False |
Answer» E. | |
7. |
Is sun drying and solar drying same? |
A. | True |
B. | False |
Answer» C. | |
8. |
What is the lower limit of moisture content by sun drying method? |
A. | 15% |
B. | 10% |
C. | 8% |
D. | 13% |
Answer» B. 10% | |
9. |
What is hybrid solar dryer? |
A. | It is designed and constructed using direct solar energy and a heat exchanger. |
B. | It represents solar dyer but uses irradiation instead of sun rays |
C. | It is designed and constructed using direct solar energy and irradiation rays |
D. | It is used for only hybrid and genetically modified foods |
Answer» B. It represents solar dyer but uses irradiation instead of sun rays | |
10. |
Why meats are not recommended for out-of-doors drying? |
A. | Meats are high in protein, making them ideal for microbial growth |
B. | Meat gets decomposed easily |
C. | Meat absorbs the outdoor odours |
D. | Vitamin B12 is lost during sun drying |
Answer» B. Meat gets decomposed easily | |