MCQOPTIONS
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MCQOPTIONS
This section includes 48 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Ion exchange units are known as ______ |
| A. | Water hardeners |
| B. | Water softeners |
| C. | Water purifiers |
| D. | Exchangers |
| Answer» C. Water purifiers | |
| 2. |
The initial equipment in the ion exchange process is ___________ |
| A. | More |
| B. | Less |
| C. | Very less |
| D. | Very high |
| Answer» B. Less | |
| 3. |
In the case of the zeolites, ion exchange process do not function properly because of the __________ |
| A. | Turbidity |
| B. | Suspended matter |
| C. | Turbidity and suspended matter |
| D. | Neither turbidity nor suspended matter |
| Answer» D. Neither turbidity nor suspended matter | |
| 4. |
In ion exchange process, the cation exchange resin is generated by passing ____________ |
| A. | Acids |
| B. | Dilute acids |
| C. | Alkalis |
| D. | Dilute alkalis |
| Answer» C. Alkalis | |
| 5. |
The regeneration of acids and alkalis in ion exchange process is __________ |
| A. | Cheaper |
| B. | Costlier |
| C. | Time taking |
| D. | Hard process |
| Answer» C. Time taking | |
| 6. |
Ion exchange process is the clean process because it has ___________ |
| A. | Sludge formation |
| B. | No sludge formation |
| C. | Little sludge is formed |
| D. | Other precipitates are formed |
| Answer» C. Little sludge is formed | |
| 7. |
Ion exchange process is also called as ___________ |
| A. | Permutit’s process |
| B. | Demineralization |
| C. | Zeolite process |
| D. | Lime soda process |
| Answer» C. Zeolite process | |
| 8. |
The residual hardness in ion-exchange process is ____________ |
| A. | 0-2 ppm |
| B. | 5-10 ppm |
| C. | 10-15 ppm |
| D. | 20-30 ppm |
| Answer» B. 5-10 ppm | |
| 9. |
In ion-exchange process, the capital cost is _________ and the operational expenses are ______________ |
| A. | Low, high |
| B. | High, low |
| C. | High, high |
| D. | Low, low |
| Answer» D. Low, low | |
| 10. |
The raw water used for ion-exchange process should be turbid. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
The exhausted anion exchange column is regenerated by passing a solution of ____________ |
| A. | Dil. KOH |
| B. | Conc. KOH |
| C. | Conc. NaOH |
| D. | Dil. NaOH |
| Answer» E. | |
| 12. |
The exhausted cation exchange column is regenerated by passing a solution of ____________ |
| A. | Dil. HCl |
| B. | Dil. NaCl |
| C. | Conc. HCl |
| D. | Conc. NaCl |
| Answer» B. Dil. NaCl | |
| 13. |
Ion-free water coming out from the exchanger is known as ____________ |
| A. | Potable water |
| B. | Disinfected water |
| C. | Coagulated water |
| D. | Demineralised water |
| Answer» E. | |
| 14. |
Which of the following ion get released from the anion exchange column? |
| A. | CO3-2 |
| B. | OH– |
| C. | Cl– |
| D. | SO4-2 |
| Answer» C. Cl– | |
| 15. |
Ion-exchange resin is ____________ |
| A. | Linear |
| B. | Low molecular weight |
| C. | Organic polymer with porous structure |
| D. | Soluble |
| Answer» D. Soluble | |
| 16. |
IN_ION_EXCHANGE_PROCESS,_THE_CATION_EXCHANGE_RESIN_IS_GENERATED_BY_PASSING_____________?$ |
| A. | Acids |
| B. | Dilute acids |
| C. | Alkalis |
| D. | Dilute alkalis |
| Answer» C. Alkalis | |
| 17. |
WHEN_IS_STRONG_BASIC_ANION_NOT_NECESSARY??$ |
| A. | Silica is nil |
| B. | CO<sub>2</sub> is nil |
| C. | Fluroine is nil |
| D. | Sulphate is nil |
| Answer» B. CO<sub>2</sub> is nil | |
| 18. |
IN_ION-EXCHANGE_PROCESS,_THE_CAPITAL_COST_IS___________AND_THE_OPERATIONAL_EXPENSES_ARE_______________?$ |
| A. | Low, high |
| B. | High, low |
| C. | High, high |
| D. | Low, low |
| Answer» D. Low, low | |
| 19. |
The initial equipment in the ion exchange process is ___________ |
| A. | More |
| B. | Less |
| C. | Very less |
| D. | Very high |
| Answer» B. Less | |
| 20. |
In case along with silica, there is high content in sulphide and chloride what should be used?$ |
| A. | WBA |
| B. | WBA and SBA |
| C. | SBA |
| D. | SBA,WBA and WAC |
| Answer» C. SBA | |
| 21. |
In case of the zeolites, ion exchange process do not function properly because of the __________$ |
| A. | Turbidity |
| B. | Suspended matter |
| C. | Turbidity and suspended matter |
| D. | Neither turbidity nor suspended matter |
| Answer» D. Neither turbidity nor suspended matter | |
| 22. |
When the hardness and alkalinity are around 30% what should be used?$ |
| A. | SAC |
| B. | WAC |
| C. | WAC, SAC |
| D. | WAC, SAC, WBA |
| Answer» D. WAC, SAC, WBA | |
| 23. |
The_residual_hardness_in_ion-exchange_process_is$ |
| A. | 0-2 ppm |
| B. | 5-10 ppm |
| C. | 10-15 ppm |
| D. | 20-30 ppm |
| Answer» B. 5-10 ppm | |
| 24. |
The mineral free water is not used in __________ |
| A. | Pharmaceuticals |
| B. | Cosmetics |
| C. | Explosives |
| D. | Drinking |
| Answer» E. | |
| 25. |
The cost of the resins used in the ion exchange process is _________ |
| A. | High |
| B. | Low |
| C. | Moderate |
| D. | Depends on water |
| Answer» B. Low | |
| 26. |
For obtaining Silica<5 ppm which of these should be utilized? |
| A. | SBA followed by Mixed be |
| B. | SBA |
| C. | WBA SBA followed by mixed bed |
| D. | Mixed bed |
| Answer» B. SBA | |
| 27. |
The continuous supply of soft water can be provided by having ____________ |
| A. | Storage facilities |
| B. | Required amount of ppm |
| C. | High pressure boilers |
| D. | 1ppm |
| Answer» B. Required amount of ppm | |
| 28. |
What is the preferred regenerant in case of anion exchanger? |
| A. | NaCl |
| B. | NaOH |
| C. | Na<sub>2</sub>SO<sub>4</sub> |
| D. | Na<sub>2</sub>CO<sub>3</sub> |
| Answer» C. Na<sub>2</sub>SO<sub>4</sub> | |
| 29. |
The residual hardness after the treatment of water is about __________ |
| A. | 1 ppm |
| B. | Less than 1ppm |
| C. | 2 ppm |
| D. | Less than 2pmm |
| Answer» E. | |
| 30. |
What is the preferred regenerant in case of cation exchanger? |
| A. | HCl |
| B. | H<sub>2</sub>SO<sub>4</sub> |
| C. | H<sub>2</sub>CO<sub>3</sub> |
| D. | HF |
| Answer» B. H<sub>2</sub>SO<sub>4</sub> | |
| 31. |
The regeneration of acids and alkalis in ion exchange process is _________? |
| A. | Cheaper |
| B. | Costlier |
| C. | Time taking |
| D. | Hard process |
| Answer» C. Time taking | |
| 32. |
The raw water used for ion-exchange process should be turbid? |
| A. | True |
| B. | False |
| Answer» C. | |
| 33. |
The exhausted anion exchange column is regenerated by passing a solution of |
| A. | Dil. KOH |
| B. | Conc. KOH |
| C. | Conc. NaOH |
| D. | Dil. NaOH |
| Answer» E. | |
| 34. |
Ion exchange process is the clean process because it has___________ |
| A. | Sludge formation |
| B. | No sludge formation |
| C. | Little sludge is formed |
| D. | Other precipitates are formed |
| Answer» C. Little sludge is formed | |
| 35. |
Water softened during __________ method will be ideal in boilers. |
| A. | Zeolite method |
| B. | Lime soda method |
| C. | Demineralisation method |
| D. | Permutit’s process |
| Answer» C. Demineralisation method | |
| 36. |
The exhausted cation exchange column is regenerated by passing a solution of |
| A. | Dil. HCl |
| B. | Dil. NaCl |
| C. | Conc. HCl |
| D. | Conc. NaCl |
| Answer» B. Dil. NaCl | |
| 37. |
In ion exchange process, the iron and manganese ions are removed from the water. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 38. |
While designing the demineralisation plant what is considered as the weak acidic cation load? |
| A. | Alkaline hardness |
| B. | Alkaline hardness+ EMA |
| C. | EMA |
| D. | Silica |
| Answer» B. Alkaline hardness+ EMA | |
| 39. |
Which of the following statement is incorrect about the demineralised water? |
| A. | It is as pure as distilled water |
| B. | It is very good for use in high pressure boilers |
| C. | It is fit for domestic use |
| D. | It can be made either by distillation or by using cation and anion exchangers |
| Answer» D. It can be made either by distillation or by using cation and anion exchangers | |
| 40. |
The total __________ are removed completely in the ion exchange process. |
| A. | Dissolved gases |
| B. | Dissolved solids |
| C. | Dissolved solvents |
| D. | Dissolved other impurities |
| Answer» C. Dissolved solvents | |
| 41. |
The ions with opposite charge can be exchanged. |
| A. | True |
| B. | False |
| Answer» C. | |
| 42. |
Ion-free water coming out from the exchanger is known as |
| A. | Potable water |
| B. | Disinfected water |
| C. | Coagulated water |
| D. | Demineralised water |
| Answer» E. | |
| 43. |
The hardness in the ion exchange process is reduced to ___________ |
| A. | 0-1ppm |
| B. | 0-2ppm |
| C. | 0-3ppm |
| D. | 0-4ppm |
| Answer» C. 0-3ppm | |
| 44. |
Which of these have a negative electrical charge? |
| A. | Calcium |
| B. | Magnesium |
| C. | Sodium |
| D. | Chloride |
| Answer» E. | |
| 45. |
The operational cost of the ion exchange process is __________ |
| A. | High |
| B. | Low |
| C. | Very high |
| D. | Very low |
| Answer» C. Very high | |
| 46. |
Water softener units work most efficiently with particulate water. |
| A. | True |
| B. | False |
| Answer» C. | |
| 47. |
Which of the following ion get released from the cation exchange column? |
| A. | H<sup>+</sup> |
| B. | Na<sup>+</sup> |
| C. | K<sup>+</sup> |
| D. | Ca<sup>+2</sup> |
| Answer» B. Na<sup>+</sup> | |
| 48. |
Ion-exchange resin is |
| A. | Linear |
| B. | Low molecular weight |
| C. | Organic polymer with porous structure |
| D. | Soluble |
| Answer» D. Soluble | |