MCQOPTIONS
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MCQOPTIONS
This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Biomedical Instrumentation knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In multi-parameter coulter counter, what is the time taken by 1 ml of blood to obtain all parameters? |
| A. | 34 sec |
| B. | 45 sec |
| C. | 34-50 sec |
| D. | 34-45 sec |
| Answer» D. 34-45 sec | |
| 2. |
The diameter of the polystyrene latex particles are ______________________ |
| A. | 6 micron |
| B. | 6-20 micron |
| C. | 20 micron |
| D. | 6-14 micron |
| Answer» E. | |
| 3. |
Which of the following is not the provide by multi-parameter coulter counter? |
| A. | Mean cell volume |
| B. | Red cell count |
| C. | Mean cell hemoglobin volume |
| D. | White cell count |
| Answer» D. White cell count | |
| 4. |
What is the diameter of Ragweed pollen? |
| A. | 6 micron |
| B. | 19 micron |
| C. | 14 micron |
| D. | 15 micron |
| Answer» C. 14 micron | |
| 5. |
WHICH_OF_THE_FOLLOWING_IS_NOT_THE_PROVIDE_BY_MULTI-PARAMETER_COULTER_COUNTER??$ |
| A. | Mean cell volume |
| B. | Red cell count |
| C. | Mean cell hemoglobin volume |
| D. | White cell count |
| Answer» D. White cell count | |
| 6. |
In multi-parameter coulter counter, what is the time taken by 1 ml of blood to obtain all parameters?$ |
| A. | 34 sec |
| B. | 45 sec |
| C. | 34-50 sec |
| D. | 34-45 sec |
| Answer» D. 34-45 sec | |
| 7. |
The_diameter_of_the_polystyrene_latex_particles_are_______________________$ |
| A. | 6 micron |
| B. | 6-20 micron |
| C. | 20 micron |
| D. | 6-14 micron |
| Answer» E. | |
| 8. |
Coulter counters have a serious drawback linked with the mercury manometer arrangement. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Under a total count of _______ pulses, primary coincidence is negligible and can be ignored. |
| A. | 5000 |
| B. | 1000 |
| C. | 8000 |
| D. | 10000 |
| Answer» E. | |
| 10. |
Model ____________ automatically compensates for the loss of pulses during coincidence error. |
| A. | 4008 S Coulter counter |
| B. | S plus Coulter counter |
| C. | A plus Coulter counter |
| D. | 4008 A Coulter counter |
| Answer» C. A plus Coulter counter | |
| 11. |
What occurs when two or more particles are present in the sensing zone at the same time? |
| A. | Calibration |
| B. | Troubleshooting |
| C. | Delay in results |
| D. | Coincidence error |
| Answer» E. | |
| 12. |
What is diameter of Ragweed pollen? |
| A. | 6 micron |
| B. | 19 micron |
| C. | 14 micron |
| D. | 15 micron |
| Answer» C. 14 micron | |
| 13. |
Which following is not constant for the calibration factor in Coulter counter? |
| A. | Electrolyte resistivity |
| B. | Amplifier gain setting |
| C. | Given aperture size |
| D. | Setting of the threshold level control |
| Answer» E. | |
| 14. |
The required bandwidth of the preamplifier used in cell counter must be? |
| A. | 70 kHz |
| B. | 120 kHz |
| C. | 70 Hz |
| D. | 120 Hz |
| Answer» B. 120 kHz | |
| 15. |
Typically, an aperture of 100 m diameter and 200 m length, separating two solutions of sulphate buffered saline, has a resistance of about 25 kW and capacitance of 120 pF. |
| A. | True |
| B. | False |
| Answer» C. | |
| 16. |
In Coulter counter, for such an aperture, a length of about ______ and flow rate of ______ ml/s would be optimum. |
| A. | 100 u, 0.04 |
| B. | 200 u, 0.02 |
| C. | 100 u, 0.02 |
| D. | 200 u, 0.04 |
| Answer» E. | |
| 17. |
Which of the following information is not provided by the Coulter Counter? |
| A. | Relative cell size distribution |
| B. | Settings of the threshold level control |
| C. | Relative cell size |
| D. | Mean cell volume |
| Answer» E. | |
| 18. |
Which electrode is placed inside the orifice tube, in coulter counter? |
| A. | Metal electrode |
| B. | Platinum electrode |
| C. | Silicon electrode |
| D. | Magnesium electrode |
| Answer» C. Silicon electrode | |
| 19. |
Blood cell counters, operating on the principle of conductivity change, which occurs each time a cell passes through an orifice, are generally known as ________________ |
| A. | optical method |
| B. | electrical conductivity |
| C. | coulter Counter |
| D. | microscopic method |
| Answer» D. microscopic method | |