MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Analytical Instrumentation knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In combination electrodes, both the electrodes must be maintained at different temperatures. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Gel filled combination electrodes operate in a wide temperature range. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
In which of the following solutions must combination electrodes be soaked after cleaning? |
| A. | KCl |
| B. | LiCl |
| C. | KNO3 |
| D. | K2SO4 |
| Answer» B. LiCl | |
| 4. |
IN_WHICH_OF_THE_FOLLOWING_SOLUTIONS_MUST_COMBINATION_ELECTRODES_BE_SOAKED_AFTER_CLEANING??$ |
| A. | KCl |
| B. | LiCl |
| C. | KNO<sub>3</sub> |
| D. | K<sub>2</sub>SO<sub>4</sub> |
| Answer» B. LiCl | |
| 5. |
In combination electrodes, both the electrodes must be maintained at different temperatures.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Gel_filled_combination_electrodes_operate_in_a_wide_temperature_range.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Beckman coulter gel filled combination electrodes provide which of the following features to overcome various problems that occur in gel filled electrodes? |
| A. | Filters |
| B. | Semi-permeable membrane |
| C. | Gas-permeable membrane |
| D. | Micro-pore junction |
| Answer» E. | |
| 8. |
The gel used in combination electrodes does not have which of the following characteristic? |
| A. | Non-toxic |
| B. | USP grade |
| C. | Inorganic material |
| D. | Polyacrylamide |
| Answer» D. Polyacrylamide | |
| 9. |
Good choice for storing combination electrodes is in a buffer solution having which of the following pH? |
| A. | pH1 |
| B. | pH2 |
| C. | pH3 |
| D. | pH4 |
| Answer» E. | |
| 10. |
Which of the following is not the advantage of gel-filled electrodes? |
| A. | Low maintenance |
| B. | Rugged in construction |
| C. | Easy to maintain |
| D. | Does not cause clogging |
| Answer» E. | |
| 11. |
Combination electrodes containing the electrolyte in gel format have which of the following advantages over normal ones? |
| A. | Simple to use |
| B. | Low maintenance |
| C. | Low cost |
| D. | More accurate |
| Answer» C. Low cost | |
| 12. |
The reference electrodes in combination electrodes are protected against light using which of the following? |
| A. | Emerald green glass |
| B. | Ruby red glass |
| C. | Sapphire blue glass |
| D. | Pearl white glass |
| Answer» C. Sapphire blue glass | |
| 13. |
Which of the following reference electrodes are used as internal and external reference electrodes in combination electrodes? |
| A. | Silver/silver chloride electrode |
| B. | Calomel electrode |
| C. | Mercury/mercury sulphate electrode |
| D. | Mercury/mercury chloride electrode |
| Answer» B. Calomel electrode | |
| 14. |
In combination electrode, which of the following electrodes are built together? |
| A. | Primary electrode, secondary reference electrode |
| B. | Primary reference electrode, glass electrode |
| C. | Glass electrode, secondary reference electrode |
| D. | Glass electrode with another glass electrode |
| Answer» D. Glass electrode with another glass electrode | |