MCQOPTIONS
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MCQOPTIONS
This section includes 12 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 the characteristic of flame ionization detector? |
| A. | Good linearity |
| B. | Narrow range of concentration |
| C. | High sensitivity |
| D. | Fast response |
| Answer» C. High sensitivity | |
| 2. |
In flame ionization detector, the ions collected on the negatively charged grid are amplified at the high impedance amplifier. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
WHICH_OF_THE_FOLLOWING_IS_NOT_THE_CHARACTERISTIC_OF_FLAME_IONIZATION_DETECTOR??$ |
| A. | Good linearity |
| B. | Narrow range of concentration |
| C. | High sensitivity |
| D. | Fast response |
| Answer» C. High sensitivity | |
| 4. |
IN_FLAME_IONIZATION_DETECTOR,_THE_IONS_COLLECTED_ON_THE_NEGATIVELY_CHARGED_GRID_ARE_AMPLIFIED_AT_THE_HIGH_IMPEDANCE_AMPLIFIER.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Which of the following methods make use of pyrolysis while used for detecting methane? |
| A. | Mass spectroscopy |
| B. | Flame ionization detector |
| C. | Ultraviolet absorption |
| D. | Gas chromatography |
| Answer» C. Ultraviolet absorption | |
| 6. |
In flame ionization detectors, which of the following is the range adequate for atmospheric sampling? |
| A. | 0-1 ppm |
| B. | 0-2 ppm |
| C. | 0-20 ppm |
| D. | 0-100 ppm |
| Answer» D. 0-100 ppm | |
| 7. |
Propane would give three times the intensity of response as compared to methane. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which of the following organic compounds will have the highest intensity of response when introduced in a flame ionization detector? |
| A. | Methane |
| B. | Ethane |
| C. | Propane |
| D. | Butane |
| Answer» E. | |
| 9. |
How can carbon monoxide be detected using flame ionization detectors while using gas chromatography technique? |
| A. | By converting it into carbon dioxide |
| B. | By converting it into methane |
| C. | By mixing it with combustible gases |
| D. | It cannot be detected |
| Answer» C. By mixing it with combustible gases | |
| 10. |
Flame ionization detectors are sensitive to which of the following gases? |
| A. | Carbon dioxide |
| B. | Methane |
| C. | Carbon monoxide |
| D. | Sulphur dioxide |
| Answer» C. Carbon monoxide | |
| 11. |
Which of the following is the most abundant hydrocarbon which is emitted into the atmosphere by biological activity? |
| A. | Ethane |
| B. | Methane |
| C. | Poly Aromatic hydrocarbons |
| D. | Pentane |
| Answer» C. Poly Aromatic hydrocarbons | |
| 12. |
Which of the following methods cannot be used for the estimation of hydrocarbons? |
| A. | Mass spectroscopy |
| B. | Chemiluminescence method |
| C. | Ultraviolet absorption |
| D. | Gas chromatography |
| Answer» C. Ultraviolet absorption | |