photogrammetry mcq

1. Which of the following best describes the fundamental principle of photogrammetry? A) Employing single-camera shots to measure object distances accurately. B) Using multiple images to create a three-dimensional model of an object. C) Applying laser scanning to measure surface topology in real-time. D) Utilizing software to digitally paint over images for clarity. View Answer B) Using multiple images to create a three-dimensional model of an object. 2. Why is spatial information crucial in the process of photogrammetry? A) It reduces the need for laser scanning and interferometry. B) It is needed to accurately reconstruct objects in virtual space. C) It eliminates the necessity for professional art historians to analyze data. D) It ensures the images are rendered in high resolution for analysis. View Answer B) It is needed to accurately reconstruct objects in virtual space. 3. What role does a point cloud play in photogrammetry and laser scanning? A) It helps in simplifying the colour coordination of the object’s surface. B) It acts as the foundation for constructing 3-D models from virtual environment data. C) It serves exclusively as a backup storage for scanned images. D) It functions to speed up the imaging process through fewer photographs. View Answer B) It acts as the foundation for constructing 3-D models from virtual environment data. 4. How does photogrammetry benefit art historians according to the context given? A) Facilitates the integration of sound and light effects into art displays. B) Enables them to change the art color schemes before restoration. C) Allows analysis of artworks without them being moved or visited physically. D) Permits the prediction of future degradation patterns purely through visualization. View Answer C) Allows analysis of artworks without them being moved or visited physically. 5. What limitation is associated with photogrammetry in the text? A) It generally fails to capture the abstract essence of modern art. B) Its computational processes are incompatible with current software. C) It is less effective when used in conjunction with traditional photography. D) Its accuracy is limited by the imaging technology employed. View Answer D) Its accuracy is limited by the imaging technology employed. 6. What is the role of triangulation in photogrammetry? A) It calculates the 3D position of objects using geometric relationships between images. B) It matches image points to ground control points for geo-referencing. C) It enhances image quality by reducing distortion in photographs. D) It captures 3D models by projecting 2D images onto surfaces. View Answer A) It calculates the 3D position of objects using geometric relationships between images. 7. How do Ground Control Points (GCPs) contribute to photogrammetry? A) They provide real-world scale and location references for 3D models. B) They simplify the bundle block adjustment process. C) They are used to increase image overlap during photography. D) They determine the focal length needed for image capture. View Answer A) They provide real-world scale and location references for 3D models. 8. Which process involves minimizing errors in measurements by optimizing camera parameters? A) Bundle block adjustment B) Projection geometry C) 3D coordinate calculation D) Image acquisition View Answer A) Bundle block adjustment 9. What is the principle effect used in stereoscopy to determine relative object distances? A) Bundle adjustment B) Contour mapping C) Parallax D) Orthophotos View Answer C) Parallax More MCQs For:  50+ MCQs of Introduction to Surveying For Exams and Interviews Triangulation Surveying MCQ Questions and Answers | Geomatics Engineering 35+ Nepal Engineering Council (Acts & Regulations) MCQ Questions and Answers 10. What type of photogrammetric product corrects aerial images to have uniform scale? A) 3D Models B) Contour Maps C) Orthophotos D) Digital Surface Models View Answer C) Orthophotos 11. What distinguishes terrestrial photogrammetry from other types of photogrammetry? A) It involves capturing images at various light wavelengths for analysis. B) It involves taking photographs from ground-based cameras for high accuracy on small objects. C) It uses aerial vehicles for capturing high-resolution images. D) It requires satellites to capture large-scale environmental data. View Answer B) It involves taking photographs from ground-based cameras for high accuracy on small objects. 12. Which primary advantage of drone photogrammetry makes it popular in surveying and monitoring tasks? A) Records large-scale maps using satellite-mounted cameras. B) The ability to capture high-resolution images from low altitudes with flexible flight paths. C) Provides stereoscopic images for detailed 3D terrain models. D) Captures detailed spectral images for vegetation analysis. View Answer B) The ability to capture high-resolution images from low altitudes with flexible flight paths. 13. What is the key feature that makes multispectral and hyperspectral photogrammetry unique from other forms? A) They capture images across several or many wavelengths beyond the visible light spectrum. B) They require a downward-pointing camera for orthophoto creation. C) They offer immediate 3D modeling through real-time processing. D) They rely solely on oblique aerial images for structural details. View Answer A) They capture images across several or many wavelengths beyond the visible light spectrum. 14. What application is shared by oblique photogrammetry and stereo-photogrammetry according to the text? A) 3D modeling of landscapes and urban planning. B) Satellite imaging for global environmental studies. C) Precision agriculture, including crop health monitoring. D) Industrial inspection and machinery analysis. View Answer A) 3D modeling of landscapes and urban planning. 15. Which photogrammetry type is most suitable for detecting features like vegetation health and mineral composition? A) Stereophotogrammetry for 3D terrain modeling. B) Drone photogrammetry for real-time site surveys. C) Macro photogrammetry for detailed small object modeling. D) Multispectral and hyperspectral photogrammetry. View Answer D) Multispectral and hyperspectral photogrammetry. 16. Which technological advancement played a crucial role in transitioning photogrammetry from manual to digital processes starting in the 1990s? A) The introduction of balloons and kites for photography B) The development of the first photogrammetric camera by Meydenbauer C) The rise of digital cameras and powerful computing systems D) The deployment of LiDAR integrated techniques in archaeology View Answer C) The rise of digital cameras and powerful computing systems 17. What innovation during the 1920s revolutionized the field of map-making … Read more