MCQOPTIONS
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MCQOPTIONS
This section includes 18 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. |
Given below is the block diagram of mass spectrometer. Identify the unmarked component. |
| A. | Inlet system |
| B. | Ionisation chamber |
| C. | Vacuum system |
| D. | Ion transducer |
| Answer» E. | |
| 2. |
Under which of the following temperatures is the ionisation chamber maintained? |
| A. | 100oC |
| B. | 200oC |
| C. | 300oC |
| D. | 400oC |
| Answer» C. 300oC | |
| 3. |
Which of the following is used to inject liquid samples? |
| A. | Hypodermic needle |
| B. | Glass bulb |
| C. | Capillary tube |
| D. | Curvette |
| Answer» B. Glass bulb | |
| 4. |
Which of the following is not a type of ion detector used in mass spectrometers? |
| A. | Electron multiplier |
| B. | Flame emission detector |
| C. | Faraday cup collector |
| D. | Photographic plates |
| Answer» C. Faraday cup collector | |
| 5. |
Which of the following is normally done to convert the sample into the gaseous state? |
| A. | Sample is pressurized |
| B. | Chemical reactions are made to occur |
| C. | Sample is heated |
| D. | Sample is cooled |
| Answer» D. Sample is cooled | |
| 6. |
WHICH_OF_THE_FOLLOWING_IS_NOT_A_TYPE_OF_ION_DETECTOR_USED_IN_MASS_SPECTROMETERS??$ |
| A. | Electron multiplier |
| B. | Flame emission detector |
| C. | Faraday cup collector |
| D. | Photographic plates |
| Answer» C. Faraday cup collector | |
| 7. |
Under which of the following temperatures is the ionisation chamber maintained?$ |
| A. | 100<sup>o</sup>C |
| B. | 200<sup>o</sup>C |
| C. | 300<sup>o</sup>C |
| D. | 400<sup>o</sup>C |
| Answer» C. 300<sup>o</sup>C | |
| 8. |
Which_of_the_following_is_used_to_inject_liquid_samples?$ |
| A. | Hypodermic needle |
| B. | Glass bulb |
| C. | Capillary tube |
| D. | Curvette |
| Answer» B. Glass bulb | |
| 9. |
In glow discharge ion source, the sample is atomised by which of the following process? |
| A. | Evaporation |
| B. | Sputtering |
| C. | Heating |
| D. | Annealing |
| Answer» C. Heating | |
| 10. |
Which of the following is not a characteristic of nebulizers that are commonly used? |
| A. | Low cost |
| B. | Low uptake rate |
| C. | High efficiency |
| D. | High uptake rate |
| Answer» E. | |
| 11. |
Which of the following is not one of the types of mass analyser? |
| A. | Magnetic sector analyser |
| B. | Frequency sweep analyser |
| C. | Double focussing spectrometer |
| D. | Time of flight analyser |
| Answer» C. Double focussing spectrometer | |
| 12. |
Mass analyser is similar to which of the following in optical spectrometer? |
| A. | Source |
| B. | Monochromator |
| C. | Detector |
| D. | Sample |
| Answer» C. Detector | |
| 13. |
Which of the following is not a type of ionisation? |
| A. | Field ionisation |
| B. | Spontaneous ionisation |
| C. | Spark ionisation |
| D. | Chemical ionisation |
| Answer» C. Spark ionisation | |
| 14. |
Which of the following probes are used for the introduction of the sample? |
| A. | Silica |
| B. | Quartz |
| C. | Graphite |
| D. | Silver |
| Answer» B. Quartz | |
| 15. |
Which of the following is normally done to convert the sample into gaseous state? |
| A. | Sample is pressurized |
| B. | Chemical reactions are made to occur |
| C. | Sample is heated |
| D. | Sample is cooled |
| Answer» D. Sample is cooled | |
| 16. |
Inlet system is also known as which of the following? |
| A. | Initial system |
| B. | Sample reservoir |
| C. | Sample handling system |
| D. | Element injection system |
| Answer» D. Element injection system | |
| 17. |
Which of the following can be introduced into the ionization chamber directly? |
| A. | Solid samples with low vapour pressure |
| B. | Solid samples with high vapour pressure |
| C. | Liquid samples with low density |
| D. | Liquid samples with high density |
| Answer» B. Solid samples with high vapour pressure | |
| 18. |
Which of the following is not a component of mass spectrometer? |
| A. | Inlet system |
| B. | Sweep generator |
| C. | Ion transducer |
| D. | Mass analyser |
| Answer» C. Ion transducer | |