MCQOPTIONS
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MCQOPTIONS
This section includes 53 Mcqs, each offering curated multiple-choice questions to sharpen your Textile Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
During squeezing, if water is hot then quantity of water evaporated is |
| A. | less |
| B. | more |
| C. | same |
| D. | varies according to the material |
| Answer» C. same | |
| 2. |
Length of each single module of belt dryer is |
| A. | 3050 mm |
| B. | 3250 mm |
| C. | 3350 mm |
| D. | 3450 mm |
| Answer» C. 3350 mm | |
| 3. |
After scouring stage, wool must be dried so that |
| A. | the lumps can take their natural swollen aspect |
| B. | vegetal substances can be eliminated |
| C. | optimal oiling could be obtained |
| D. | all of above |
| Answer» E. | |
| 4. |
In three-module dryer, temperature in three different zones can be |
| A. | 80, 190, 70 degrees respectively |
| B. | 90, 120, 70 degrees respectively |
| C. | 80, 120, 70 degrees respectively |
| D. | 80, 120, 90 degrees respectively |
| Answer» D. 80, 120, 90 degrees respectively | |
| 5. |
At exit of last dryer there is a quality control to measure the |
| A. | moisture |
| B. | heat |
| C. | resistance |
| D. | quality |
| Answer» B. heat | |
| 6. |
Air fed to dryer is brought in from outside through |
| A. | material entry door |
| B. | delivery door |
| C. | material entry and delivery door |
| D. | material entry and exit door |
| Answer» D. material entry and exit door | |
| 7. |
Electrical capacity and resistance fluctuation is affected by |
| A. | cleanliness |
| B. | presence of soluble salts |
| C. | cleanliness and soluble salts |
| D. | water content |
| Answer» D. water content | |
| 8. |
If pressure force of squeezer cylinder is increased, quantity of water to be evaporated is |
| A. | minimized |
| B. | increased |
| C. | remains same |
| D. | varies accordingly |
| Answer» B. increased | |
| 9. |
To allow easy passage of lump on conveyor belt, air speed |
| A. | can be increased |
| B. | can be lowered |
| C. | cannot be adjusted |
| D. | can be adjusted |
| Answer» E. | |
| 10. |
A controller can be added to moisture meter for checking parameters |
| A. | affecting the process |
| B. | affecting the material |
| C. | affecting the moisture control |
| D. | affecting the electrical capacity |
| Answer» B. affecting the material | |
| 11. |
In belt dryer, heating sets are arranged on sides of the |
| A. | heating chamber |
| B. | aero thermal chamber |
| C. | thermal chamber |
| D. | air chamber |
| Answer» C. thermal chamber | |
| 12. |
In final opening, before passing material into carding process, with help of an opener beater material is |
| A. | opened and beaten |
| B. | dusted |
| C. | blended |
| D. | all of above |
| Answer» E. | |
| 13. |
Electrical capacity and resistance fluctuation varies according to the |
| A. | quantity of water |
| B. | residual value |
| C. | dust particle |
| D. | speed |
| Answer» B. residual value | |
| 14. |
Each electrode in moisture meter carries |
| A. | 600 measurements per sec. |
| B. | 800 measurements per sec. |
| C. | 900 measurements per sec. |
| D. | 1,000 measurements per sec. |
| Answer» B. 800 measurements per sec. | |
| 15. |
Type of dryer that is mostly used is |
| A. | belt type dryer |
| B. | drying machine |
| C. | conveyor dryer |
| D. | heating dryer |
| Answer» B. drying machine | |
| 16. |
Quantity of water in material at end of drying is |
| A. | 10%/15% of wool weight |
| B. | 12%/25% of wool weight |
| C. | 12%/15% of wool weight |
| D. | 10%/25% of wool weight |
| Answer» D. 10%/25% of wool weight | |
| 17. |
For best results, material fed to dryer must have |
| A. | uniform density |
| B. | uniform dimensions |
| C. | uniform moisture |
| D. | uniform weight |
| Answer» E. | |
| 18. |
Electrodes carrying out measurements determines the |
| A. | electrical capacity |
| B. | electrical resistance |
| C. | resistance fluctuation |
| D. | water content |
| Answer» C. resistance fluctuation | |
| 19. |
At end of scouring stage, wool contains moisture which is approximately |
| A. | 57% / 60% |
| B. | 55% / 67% |
| C. | 59% / 60% |
| D. | 55% / 60% |
| Answer» E. | |
| 20. |
In pre-drying, dwelling time of wool inside dryer should be |
| A. | 10 secs |
| B. | 50 secs |
| C. | 70 secs |
| D. | 90 secs |
| Answer» E. | |
| 21. |
Material from pre-dryer is taken to feeder with help of |
| A. | conveyor belt |
| B. | conveyor belt or pneumatic device |
| C. | pneumatic device |
| D. | pneumatic device or roller |
| Answer» C. pneumatic device | |
| 22. |
Introduction of weighing belt has resulted in significant reduction in |
| A. | moisture content |
| B. | impurities |
| C. | evaporation |
| D. | drying |
| Answer» B. impurities | |
| 23. |
In belt dryer, ventilation fan is |
| A. | on bottom |
| B. | on top |
| C. | on sides |
| D. | depends on the material to be dried |
| Answer» C. on sides | |
| 24. |
Belt dryer consists of insulated metal compartment which contains non stop conveyor belt for |
| A. | carrying material |
| B. | weighing material |
| C. | cleaning material |
| D. | water evaporation |
| Answer» B. weighing material | |
| 25. |
Removing water mechanically as compared to evaporation is |
| A. | cost efficient |
| B. | expensive |
| C. | cost effective |
| D. | fast |
| Answer» B. expensive | |
| 26. |
For best working conditions of press, material should be |
| A. | uneven |
| B. | even |
| C. | rough |
| D. | hard |
| Answer» C. rough | |
| 27. |
Dried wool moisture content is controlled by |
| A. | metal rods |
| B. | metal probes |
| C. | conveyor belt |
| D. | hot steam |
| Answer» C. conveyor belt | |
| 28. |
Air in dryer tend to pass from empty or thinner areas thus |
| A. | increasing efficiency and decreasing drying uniformity |
| B. | increasing efficiency and drying uniformity |
| C. | decreasing efficiency and drying uniformity |
| D. | decreasing efficiency and increasing drying uniformity |
| Answer» D. decreasing efficiency and increasing drying uniformity | |
| 29. |
Recirculated air is filtered by a suction fan, heating is done via heating sets and then it is uniformly distributed. This process ensures |
| A. | preferential paths |
| B. | non preferential paths |
| C. | continuous process |
| D. | random drying |
| Answer» C. continuous process | |
| 30. |
Dimension of belt dryer and required production capacity must be |
| A. | directly proportional |
| B. | inversely proportional |
| C. | equal |
| D. | variable |
| Answer» B. inversely proportional | |
| 31. |
Moisture meter determines moisture with help of |
| A. | 8 electrodes |
| B. | 7 electrodes |
| C. | 6 electrodes |
| D. | 4 electrodes |
| Answer» E. | |
| 32. |
In final opening stage there is an opener beater which is equipped with |
| A. | 2 or 6 rollers |
| B. | 3 or 6 roller |
| C. | 4 or 6 rollers |
| D. | 5 or 6 rollers |
| Answer» C. 4 or 6 rollers | |
| 33. |
Energy consumption of dryer is calculated to be |
| A. | 212 kJ per kg |
| B. | 250 kJ per kg |
| C. | 252 kJ per kg |
| D. | 260 kJ per kg |
| Answer» C. 252 kJ per kg | |
| 34. |
As compared to material on uniform area, material on edges is |
| A. | wetter |
| B. | dry |
| C. | brittle |
| D. | impure |
| Answer» B. dry | |
| 35. |
Conveyor belt in belt dryer has perforated sheet for passage of |
| A. | air |
| B. | cold air |
| C. | gases |
| D. | hot forced air |
| Answer» E. | |
| 36. |
Dryer must only eliminate the |
| A. | water in material |
| B. | water vapors |
| C. | residual water |
| D. | all of above |
| Answer» D. all of above | |
| 37. |
Final dryer has 2 modules where temperature is |
| A. | 45 degree and 65 degrees |
| B. | 45 degree and 85 degrees |
| C. | 65 degree and 85 degrees |
| D. | 45 degree and 165 degrees |
| Answer» B. 45 degree and 85 degrees | |
| 38. |
Pneumatic device slightly blends the |
| A. | wet fibers |
| B. | dry fibers |
| C. | twisted fibers |
| D. | short fibers |
| Answer» B. dry fibers | |
| 39. |
Quantity of vegetal matter and water contained are |
| A. | directly proportional |
| B. | inversely proportional |
| C. | same |
| D. | varies accordingly |
| Answer» C. same | |
| 40. |
Metal probes measure the |
| A. | electrical capacity |
| B. | electrical capacity or resistance fluctuation |
| C. | resistance |
| D. | residual value |
| Answer» C. resistance | |
| 41. |
Grids in last opening stage can be cleaned with |
| A. | brushes |
| B. | air ducts |
| C. | compressed air jets |
| D. | rollers |
| Answer» D. rollers | |
| 42. |
Speed of roller in opener beater present in final opening stage is |
| A. | 300 revolutions per min |
| B. | 500 revolutions per min |
| C. | 550 revolutions per min |
| D. | 600 revolutions per min |
| Answer» B. 500 revolutions per min | |
| 43. |
Slight vacuum on surface of conveyor belt ensures |
| A. | stability of fibers |
| B. | fibers' consistency |
| C. | strength of fibers |
| D. | proper distribution |
| Answer» B. fibers' consistency | |
| 44. |
In final opening stage, waste is removed using |
| A. | perforated mesh |
| B. | mesh |
| C. | net |
| D. | grid |
| Answer» E. | |
| 45. |
Dwelling time inside last dryer can be |
| A. | 50 secs |
| B. | 6o secs |
| C. | 80 secs |
| D. | 100 secs |
| Answer» D. 100 secs | |
| 46. |
Quantity of water that can be evaporated inside belt type dryer is |
| A. | 10/15 kg per square meter per hour |
| B. | 20/15 kg per square meter per hour |
| C. | 25/15 kg per square meter per hour |
| D. | 10/25 kg per square meter per hour |
| Answer» B. 20/15 kg per square meter per hour | |
| 47. |
Dirt and waste extracting from grid is taken out by |
| A. | cleaner |
| B. | worm conveyor |
| C. | brushes |
| D. | worm screw |
| Answer» E. | |
| 48. |
Aspect/s to be carefully considered to get proper drying and regular residual moisture is/are |
| A. | quantity of water |
| B. | regular feeding |
| C. | non-stop feeding |
| D. | all of above |
| Answer» E. | |
| 49. |
Rollers in opening stage are also equipped with |
| A. | blades |
| B. | doffer blades |
| C. | knives |
| D. | pins |
| Answer» C. knives | |
| 50. |
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 |
| Answer» E. | |