MCQOPTIONS
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MCQOPTIONS
This section includes 21 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 not an advantage of a photovoltaic cell which is used as a detector in Flame emission photometers? |
| A. | Portable |
| B. | No external supply |
| C. | Robust in construction |
| D. | Does not show fatigue |
| Answer» E. | |
| 2. |
Given below is the diagram of evacuated glass tube of photo emissive tube. Identify the part which is indicated with a question mark. |
| A. | Anode |
| B. | Cathode |
| C. | Grid |
| D. | Dynode |
| Answer» C. Grid | |
| 3. |
Given below is the diagram of Flame emission photometers. Identify the unmarked component. |
| A. | Filter |
| B. | Atomiser |
| C. | Pressure regulator |
| D. | Burner |
| Answer» E. | |
| 4. |
Which of the following is not an application of Flame emission photometers? |
| A. | Analysis of biological fluids |
| B. | Determination of sodium, potassium in soil |
| C. | Determination of metals such as Mn, Cu |
| D. | Analysis of complex mixtures |
| Answer» E. | |
| 5. |
Phototubes are more sensitive than photovoltaic cells. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which of the following is not a detector used in Flame emission photometers? |
| A. | Photronic cell |
| B. | Photovoltaic cell |
| C. | Photoemissive tube |
| D. | Chromatogram |
| Answer» E. | |
| 7. |
Which of the following is the advantage of grating monochromators? |
| A. | Dispersion is non-overlapping |
| B. | Dispersion occurs in non-linear manner |
| C. | Dispersion is overlapping |
| D. | Dispersion occurs in a linear manner |
| Answer» E. | |
| 8. |
In Flame emission photometers, the measurement of _____________ is used for quantitative analysis. |
| A. | Colour |
| B. | Intensity |
| C. | Velocity |
| D. | Frequency |
| Answer» C. Velocity | |
| 9. |
The function of pressure regulators in the emission system of flame photometer is to have a steady flame which is free from flickers. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
WHICH_OF_THE_FOLLOWING_IS_THE_ADVANTAGE_OF_GRATING_MONOCHROMATORS??$ |
| A. | Dispersion is non-overlapping |
| B. | Dispersion occurs in non-linear manner |
| C. | Dispersion is overlapping |
| D. | Dispersion occurs in a linear manner |
| Answer» E. | |
| 11. |
Phototubes are more sensitive than photovoltaic cells.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Which_of_the_following_is_not_a_detector_used_in_Flame_emission_photometers?$ |
| A. | Photronic cell |
| B. | Photovoltaic cell |
| C. | Photoemissive tube |
| D. | Chromatogram |
| Answer» E. | |
| 13. |
Which of the following is not an advantage of photovoltaic cell which is used as a detector in Flame emission photometers? |
| A. | Portable |
| B. | No external supply |
| C. | Robust in construction |
| D. | Does not show fatigue |
| Answer» E. | |
| 14. |
Which_of_the_following_is_not_an_application_of_Flame_emission_photometers? |
| A. | Analysis of biological fluids |
| B. | Determination of sodium, potassium in soil |
| C. | Determination of metals such as Mn, Cu |
| D. | Analysis of complex mixtures |
| Answer» E. | |
| 15. |
Which of the following is the advantage of prism monochromators? |
| A. | Dispersion is non-overlapping |
| B. | Dispersion occurs in non-linear manner |
| C. | Dispersion is overlapping |
| D. | Dispersion occurs in a linear manner |
| Answer» B. Dispersion occurs in non-linear manner | |
| 16. |
Laminar flow burner used in Flame photometers is also known as ____________ |
| A. | Turbulent burner |
| B. | Premix burner |
| C. | Total consumption burner |
| D. | Nozzle mix burner |
| Answer» C. Total consumption burner | |
| 17. |
Which of the following is not an advantage of Laminar flow burner used in Flame photometry? |
| A. | Noiseless |
| B. | Stable flame for analysis |
| C. | Efficient atomization of sample |
| D. | Sample containing two or more solvents can be burned efficiently |
| Answer» E. | |
| 18. |
In Flame emission photometers, the measurement of _____________ is used for qualitative analysis. |
| A. | Colour |
| B. | Intensity |
| C. | Velocity |
| D. | Frequency |
| Answer» B. Intensity | |
| 19. |
Which of the following is the principle of Flame emission photometers? |
| A. | Radiation is absorbed by non-excited atoms in vapour state and are excited to higher states |
| B. | Medium absorbs radiation and transmitted radiation is measured |
| C. | Colour and wavelength of the flame is measured |
| D. | Only wavelength of the flame is measured |
| Answer» D. Only wavelength of the flame is measured | |
| 20. |
In Total consumption burner, only samples of particular droplet size will enter the burner. |
| A. | True |
| B. | False |
| Answer» C. | |
| 21. |
The function of pressure regulators in emission system of flame photometer is to have a steady flame which is free from flickers. |
| A. | True |
| B. | False |
| Answer» B. False | |