Thermography MCQ

14. Best condition for thermography inspection: A) No temperature difference B) Large temperature difference C) High humidity D) Strong wind Answer: B) Large temperature difference Explanation: Enhances visibility of anomalies. 15. What is a thermal image called? A) Photograph B) Thermogram C) Radiograph D) Diagram Answer: B) Thermogram Explanation: IR image = thermogram. 16. Which parameter affects spatial resolution? A) NETD B) IFOV C) Emissivity D) Humidity Answer: B) IFOV 17. Which law relates wavelength and temperature? A) Wien’s Law B) Boyle’s Law C) Hooke’s Law D) Pascal’s Law Answer: A) Wien’s Law 18. Infrared spectrum lies between: A) UV & X-rays B) Visible & microwaves C) Radio & gamma D) None Answer: B) Visible & microwaves 19. What is thermal sensitivity measured in? A) Volts B) °C C) mK D) Hz Answer: C) mK 20. What causes reflection error? A) Low humidity B) Shiny surface C) High emissivity D) Dark color Answer: B) Shiny surface 21. Which has highest emissivity? A) Aluminum B) Copper C) Human skin D) St…

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