Analytical instruments MCQ Quiz Hub

Analytical Instrumentation MCQ Question Set 24

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1. Tip of indicator electrode will be ______




2. Resistance of glass electrode will be _____




3. Which of the following represents pH of acidic medium?




4. Ground isolation in bioelectric measurement is not important.




5. EEG signal range is ____




6. Difference between input signal and feedback signal is known as ______




7. Error signal in positive feedback system will be ____________ input signal.




8. Which of the following represents complete expression for a closed loop system?




9. Which of the following change has been happened to output impedance in the negative feedback system?




10. Voltage gain improves on the application of negative feedback.




11. Input impedance can be ___ on application of negative feedback.




12. For a negative feedback system, A=3 and β=2 and output impedance without feedback are 100Ω. What will be its total output impedance?




13. Input impedance of a system is 50 Ω, for the system to be negative feedback, which of the following can be its input impedance without feedback?




14. In a feedback gain equation, what does the term β stands for?




15. In which of the following conditions, feedback gain (Af) become independent of forward gain (A)?




16. Inverse transducers are also known as _________




17. A system with feedback loop doesn’t have _______




18. Which of the following represents torque produced in a PMMC device?




19. Inverse transducer is system which converts _________




20. In a PMMC device what change will happen to torque, if flux density increased?




21. PMMC devices are converters of ________




22. In PMMC device, torque and number of turns have _______




23. Which of the following is an inverse transducer _______




24. Input transducers and inverse transducers are the same.




25. Which of the following cannot act as inverse transducer?




26. Hot wire anemometer can be used to measure ________




27. Beam balance is used for __________




28. In electromagnetic balance system, horizontality is detected by _______




29. Null position is attained when _________




30. In balance system gain of amplifier is ________




31. Torque of PMMC device is proportional to _______




32. In a pneumatic balance system, restoring is done by _________




33. Which of the following materials can be used in high pressure manometer tube?




34. Band width of servo operated manometers are limited to ________




35. Manometers are generally used to measure ___________




36. Atmospheric pressure can be expressed in __________




37. By conversion, 1 bar= _________ N/m2.




38. Which of the following represents pressure exerted by a column of mercury of 1 mm?




39. Which of the following is the lowest unit for pressure?




40. Water is non-manometric liquid.




41. Which of the following has a low evaporation rate than water?




42. As specific gravity increases, the evaporation rate of manometric liquid decreases.




43. Pneumatic load cells are suitable for measuring ________




44. Hydraulic cells are preferable since _________




45. Pressure output and area of diaphragm in pneumatic cell is related by ___________




46. Which of the following is correct for load cell?




47. Load cells are highly stable.




48. Which of the following can be used with highly dynamic force?




49. Which of the following is suitable for geomechanical measurement?




50. Which of the following may be a cause for ringing in pneumatic load cell?