MCQOPTIONS
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MCQOPTIONS
This section includes 13 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 analog and digital grounds are connected together in ion analysers. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the following is the only operator entry required in PC-based ion analysers? |
| A. | Hardware set-up |
| B. | Signal measurement |
| C. | Calibration |
| D. | Sample calculation |
| Answer» D. Sample calculation | |
| 3. |
The timing for a microprocessor and for all signals is generated by the CPU clock. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
During which of the following conditions is the blank correction necessary? |
| A. | If sample concentration rises in linear response region |
| B. | If sample concentration falls in linear response region |
| C. | If sample concentration rises in non-linear response region |
| D. | If sample concentration falls in non-linear response region |
| Answer» E. | |
| 5. |
WHICH_OF_THE_FOLLOWING_IS_THE_ONLY_OPERATOR_ENTRY_REQUIRED_IN_PC-BASED_ION_ANALYSERS??$ |
| A. | Hardware set-up |
| B. | Signal measurement |
| C. | Calibration |
| D. | Sample calculation |
| Answer» D. Sample calculation | |
| 6. |
The_analog_and_digital_grounds_are_connected_together_in_ion_analysers.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
The timing for microprocessor and for all signals is generated by the CPU clock? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which of the following is not a type of ground in ion analyser? |
| A. | Chassis and electrostatic ground |
| B. | Digital ground |
| C. | Analog ground |
| D. | Reference ground |
| Answer» E. | |
| 9. |
The presence of dirt or moisture degrades which of the following? |
| A. | Circuit components |
| B. | High input impedance of buffer amplifier |
| C. | Low input impedance of buffer amplifier |
| D. | Low output impedance of buffer amplifier |
| Answer» C. Low input impedance of buffer amplifier | |
| 10. |
In ion analysers, which of the following serve the dual purpose of controlling the operating current of FET and providing current gain? |
| A. | FET itself does it |
| B. | SCR |
| C. | Op-amp |
| D. | Diode |
| Answer» D. Diode | |
| 11. |
Ion analysers need calibration once in which of the following durations? |
| A. | Every two or three hours |
| B. | Every nine or ten hours |
| C. | Every 24 hours |
| D. | Every 48 hours |
| Answer» B. Every nine or ten hours | |
| 12. |
During which of the following conditions is the blank correction not necessary? |
| A. | If sample concentration rises in linear response region |
| B. | If sample concentration falls in linear response region |
| C. | If sample concentration rises in non-linear response region |
| D. | If sample concentration falls in non-linear response region |
| Answer» C. If sample concentration rises in non-linear response region | |
| 13. |
If a solid or liquid membrane is placed in pure water, the membrane dissolves slightly, producing an equilibrium concentration of the measured ion. This is represented as __________ |
| A. | A constant, Eo |
| B. | Activity |
| C. | Blank correction, Cb |
| D. | Concentration of standard solution, Cs |
| Answer» D. Concentration of standard solution, Cs | |