Electrical measurements MCQ Quiz Hub

Electrical Measurement MCQ Question Set 15

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1. Proper bonding causes errors in strain gauges.




2. Strain gauges are classified into ________




3. Resistance wire gauges come in _______




4. Bonded resistance wire strain gauge is of _______




5. Commonly used electrical strain gauge is _______




6. Electrical strain gauges measure changes in _______




7. Mechanical gauges measure the _______




8. Optical gauges make use of _______




9. Tensile stress decreases the length.




10. In a foil strain gauge, strain is detected through _______




11. Etched foil strain gauges are flexible.




12. Gauge factor in a strain gauge must be ______




13. Strain gauges are used for ______




14. Resistance of the strain gauge must be _____




15. Strain gauge has a ______




16. Strain gauge has a _______




17. Semiconductor strain gauges are used for _______




18. Strain gauge works on the principle of _______




19. In metallic gauges resistance changes due to _______




20. Gauge factor for a semiconductor strain gauge is _______




21. Hysteresis characteristics of a semiconductor strain gauge are poor.




22. Strain gauge measurement involves _______




23. Load cell is used for the measurement of _______




24. Strain is a ______




25. Semiconductor strain gauge uses _______




26. A semiconductor strain gauge consists of how many dummy gauges?




27. Metals in strain gauge construction have _______




28. A Wheatstone bridge has _______




29. Load cells are calibrated such that _______




30. Load cell is sensitive to minute strains.




31. Mass of only about 20 kg can be measured by a load cell.




32. Resistance temperature detector is _____




33. Relation between temperature and resistance of a conductor is ________




34. Sensing element in the thermometer must provide ________




35. Platinum is used for industrial applications because ______




36. Resistance thermometer provides the change in electrical resistance.




37. If the sensing element is large, then less amount of heat is required.




38. Most metallic conductors have a ______




39. In a temperature sensing element _____




40. Nickel and its alloys can be used over a temperature range of _____




41. How can corrosion be prevented in a resistance thermometer?




42. Thermistor is a contraction ______




43. Thermistors have ______




44. Thermistor has a resistance of ____




45. Thermistors are suited for precision temperature measurements.




46. Change in resistance is measured using a _______




47. Thermistor material is pressed _____




48. Thermistor follows which law for small variations ________




49. At small values of voltage, a thermistor _____




50. Thermistor has low resistance.