MCQOPTIONS
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MCQOPTIONS
This section includes 6 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. |
Which of the following is the ideal vacuum for electron spectrometers? |
| A. | 10<sup>-6</sup> torr |
| B. | 10<sup>-7</sup> torr |
| C. | 10<sup>-8</sup> torr |
| D. | 10<sup>-9</sup> torr |
| Answer» B. 10<sup>-7</sup> torr | |
| 2. |
The output of the multiplier is fed to which of the following immediately? |
| A. | Pulse amplifier discriminator |
| B. | DAC |
| C. | ADC |
| D. | Multichannel analyser |
| Answer» B. DAC | |
| 3. |
Electron detector has a _______ doped glass tube with a secondary semiconducting coating. |
| A. | Quartz |
| B. | Silica |
| C. | Lead |
| D. | Cesium |
| Answer» D. Cesium | |
| 4. |
Which of the following is the most commonly used detector in ESCA and AES? |
| A. | Electron multiplier |
| B. | Dynodes |
| C. | Photovoltaic cell |
| D. | Photomultiplier |
| Answer» B. Dynodes | |
| 5. |
In spherical sector analyser, __________ is detected and plotted as a function of energy. |
| A. | Mass |
| B. | Charge |
| C. | Number of electrons striking the detector |
| D. | Mass to charge ratio |
| Answer» D. Mass to charge ratio | |
| 6. |
A basic X-ray source includes which of the following components? |
| A. | Large target anode |
| B. | Large target cathode |
| C. | Small target anode |
| D. | Small target cathode |
| Answer» B. Large target cathode | |