MCQOPTIONS
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MCQOPTIONS
This section includes 14 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 effective sample volume in analyzers based on gas density? |
| A. | 10 ml |
| B. | 20 ml |
| C. | 5 ml |
| D. | 50 ml |
| Answer» D. 50 ml | |
| 2. |
When hot-wires are used as detectors amplification is not required. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
In analyzers based on gas density, if the sample carries a gas having a higher density than the detector which of the following occurs? |
| A. | It will cause a net downward flow |
| B. | It will cause a net upward flow |
| C. | It splits into two beams |
| D. | There will be no difference in flow |
| Answer» B. It will cause a net upward flow | |
| 4. |
Which of the following is the relationship between the density of ideal gas and its molecular weight? |
| A. | Directly proportional |
| B. | Inversely proportional |
| C. | Linear |
| D. | No relation |
| Answer» D. No relation | |
| 5. |
WHEN_HOT-WIRES_ARE_USED_AS_DETECTORS_AMPLIFICATION_IS_NOT_REQUIRED.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Which_of_the_following_is_the_effective_sample_volume_in_analyzers_based_on_gas_density?$ |
| A. | 10 ml |
| B. | 20 ml |
| C. | 5 ml |
| D. | 50 ml |
| Answer» D. 50 ml | |
| 7. |
In analyzers based on gas density, if the sample carries a gas having higher density than the detector which of the following occurs? |
| A. | It will cause a net downward flow |
| B. | It will cause a net upward flow |
| C. | It splits into two beams |
| D. | There will be no difference in flow |
| Answer» B. It will cause a net upward flow | |
| 8. |
Which of the following bridges are used in analyzers based on gas density? |
| A. | Wheatstone bridge |
| B. | Kelvin’s bridge |
| C. | Anderson’s bridge |
| D. | Schering’s bridge |
| Answer» B. Kelvin‚Äö√Ñ√∂‚àö√ë‚àö¬•s bridge | |
| 9. |
In analyzers based on gas density, the unbalance of the bridge is linearly proportional to which of the following? |
| A. | Temperature of sample detector |
| B. | Pressure at sample detector |
| C. | Pressure difference between both the detectors |
| D. | Gas-density difference between both the detectors |
| Answer» E. | |
| 10. |
The use of thermistor eliminates the requirement for amplification. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
When would the recorder indicate a zero base line in analyzers based on gas density? |
| A. | When the detector on the sample side is cooler than that on the reference side |
| B. | When the detector on the reference side is cooler than that on the sample side |
| C. | When flow is unbalanced |
| D. | When both the detectors are equally cooled |
| Answer» E. | |
| 12. |
Which of the following detectors are not used in analyzers based on gas density? |
| A. | Hot wire |
| B. | Platinum filament |
| C. | Thermistor |
| D. | Thermometer |
| Answer» E. | |
| 13. |
Under which of the following conditions do all real gases behave as ideal gases to some extent? |
| A. | Low temperature and low pressure |
| B. | Low temperature and high pressure |
| C. | High temperature and low pressure |
| D. | Room temperature and normal pressure |
| Answer» E. | |
| 14. |
Which of the following is the relationship between density of ideal gas and its molecular weight? |
| A. | Directly proportional |
| B. | Inversely proportional |
| C. | Linear |
| D. | No relation |
| Answer» D. No relation | |