MCQOPTIONS
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MCQOPTIONS
This section includes 19 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. |
The 100 kHz oscillator acts as which of the following? |
| A. | Transmitter |
| B. | Receiver |
| C. | Modulator |
| D. | Transmitter and receiver |
| Answer» E. | |
| 2. |
The klystron body is insulated from ground by an insulating gas casket. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Klystron requires _______ for the klystron beam and up to _____ for the klystron reflector. |
| A. | +400 V, -730 V |
| B. | +650 V, -400 V |
| C. | +200 V,-530 V |
| D. | +180 V,-270 V |
| Answer» C. +200 V,-530 V | |
| 4. |
What does AFC stand for? |
| A. | Auto frequency correct |
| B. | Automated frequency correct |
| C. | Automatic frequency control |
| D. | Automatic frequency circuit |
| Answer» D. Automatic frequency circuit | |
| 5. |
KLYSTRON_REQUIRES_________FOR_THE_KLYSTRON_BEAM_AND_UP_TO_______FOR_THE_KLYSTRON_REFLECTOR.?$ |
| A. | +400 V, -730 V |
| B. | +650 V, -400 V |
| C. | +200 V,-530 V |
| D. | +180 V,-270 V |
| Answer» C. +200 V,-530 V | |
| 6. |
The 100 kHz oscillator acts as which of the following?$ |
| A. | Transmitter |
| B. | Receiver |
| C. | Modulator |
| D. | Transmitter and receiver |
| Answer» E. | |
| 7. |
The klystron body is insulated from ground by an insulating gas casket.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
In the sample cell, which of the following is selected to give maximum optical transmission in the UV-visible region? |
| A. | Tungsten |
| B. | Quartz |
| C. | Phosphor |
| D. | Potassium |
| Answer» C. Phosphor | |
| 9. |
The oscilloscope is used to display the klystron mode. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Which of the following removes residual harmonics from the phase-detected signal? |
| A. | High-pass filter |
| B. | Low-pass filter |
| C. | Band-pass filter |
| D. | Chopper |
| Answer» C. Band-pass filter | |
| 11. |
What is the full form of AFC in Instrumentation Esr Spectrometer? |
| A. | Auto frequency correct |
| B. | Automated frequency correct |
| C. | Automatic frequency control |
| D. | Automatic frequency circuit |
| Answer» D. Automatic frequency circuit | |
| 12. |
Which of the following oscillator is used as 1230 Hz oscillator? |
| A. | Hartley oscillator |
| B. | Crystal oscillator |
| C. | RC oscillator |
| D. | Wien bridge oscillator |
| Answer» E. | |
| 13. |
Which of the following sensor is used in ESR spectrometer? |
| A. | Hall-effect sensor |
| B. | Load cell |
| C. | Strain gauge |
| D. | Bourdon gauge |
| Answer» B. Load cell | |
| 14. |
The magnet used in ESR spectrometer provides a magnetic field which can be varied from ________ to _______ |
| A. | 20 mgauss, 100mgauss |
| B. | 200 mgauss, 20kgauss |
| C. | 20 mgauss, 20kgauss |
| D. | 100 mgauss, 10kgauss |
| Answer» C. 20 mgauss, 20kgauss | |
| 15. |
Which of the following is the oscilloscope field width of the ESR spectrometer? |
| A. | 0.2 to 40 G |
| B. | 0.1 to 20 G |
| C. | 0 to 10 G |
| D. | 0.01 to 20 G |
| Answer» B. 0.1 to 20 G | |
| 16. |
In which of the following ranges will the receiver time constant of the ESR spectrometer lie? |
| A. | 0 to 10 s |
| B. | 0.3 to 1 s |
| C. | 0.03 to 10 s |
| D. | 0.003 to 100 s |
| Answer» E. | |
| 17. |
Which of the following is the modulation amplitude range of ESR spectrometer? |
| A. | 1mG to 10G |
| B. | 2mG to 15G |
| C. | 3mG to 20G |
| D. | 5mG to 40G |
| Answer» E. | |
| 18. |
After detection, the resulting signal will have which of the following frequencies? |
| A. | 1 kHz |
| B. | 10 kHz |
| C. | 100 kHz |
| D. | 1000 kHz |
| Answer» D. 1000 kHz | |
| 19. |
Which of the following is used as detector crystal in ESR spectrometer? |
| A. | Silicon rectifier |
| B. | Silicon tungsten rectifier |
| C. | Silicon boron rectifier |
| D. | Silicon quartz rectifier |
| Answer» C. Silicon boron rectifier | |