| 1. | Rollers in opening stage are also equipped with |
| a. | blades |
| b. | doffer blades |
| c. | knives |
| d. | pins |
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Answer: (b).doffer blades
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| 2. | Width of conveyor belt in belt dryer is |
| a. | 1,200, 1,600, 2,000, 2,500, 3,000 mm |
| b. | 1,300, 1,800, 2,000, 2,500, 3,000 mm |
| c. | 1,300, 1,600, 2,000, 2,500, 3,200 mm |
| d. | 1,300, 1,600, 2,000, 2,500, 3,000 mm |
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Answer: (d).1,300, 1,600, 2,000, 2,500, 3,000 mm
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| 3. | Rollers in opening stage are covered with large size cone spikes with |
| a. | sharp tips |
| b. | rounded off tips |
| c. | pointed tips |
| d. | edged tips |
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Answer: (b).rounded off tips
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| 4. | In belt type dryer, water evaporates by circulation of hot air through |
| a. | suction fan |
| b. | compression |
| c. | suction and compression |
| d. | suction fan and compression |
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Answer: (c).suction and compression
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| 5. | Number of rollers in opener beater in final opening stage depends on the |
| a. | moisture |
| b. | heat |
| c. | quantity of impurity |
| d. | chemical used |
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Answer: (c).quantity of impurity
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