MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The resolving power of Bennet type spectrometer is primarily based on which of the following? |
| A. | Distance between detector and reflectron |
| B. | Difference between the individual rf accelerating stages |
| C. | Length of the drift tube |
| D. | Laser beam used |
| Answer» C. Length of the drift tube | |
| 2. |
Which of the following is not the feature of Bennet type spectrometer? |
| A. | Lightweight |
| B. | Simple |
| C. | Absence of spurious lines |
| D. | Moderate resolution |
| Answer» D. Moderate resolution | |
| 3. |
Which of the following is the disadvantage of using three stage tubes? |
| A. | Reduced resolution |
| B. | Bulky construction |
| C. | Complex |
| D. | Heavy |
| Answer» B. Bulky construction | |
| 4. |
The spurious lines can be reduced to a minimum by using which of the following? |
| A. | Single stage tube |
| B. | Two stage tube |
| C. | Three stage tube |
| D. | Reflectron |
| Answer» D. Reflectron | |
| 5. |
Which of the following is placed just before the detector in a radiofrequency mass spectrometer? |
| A. | Ion source |
| B. | Potential energy selector |
| C. | Ionisation chamber |
| D. | Reflectron |
| Answer» C. Ionisation chamber | |