 |  Photogrammetry 30 Flashcards |  Start |
 | What is the formula to calculate the scale of a vertical photograph? |  Card: 1 / 30 |
| S = Map distance / Ground distance = f / (H - h) | Card: 2 / 30 |
| Fill in the blank: The relief displacement is given by ______. | Card: 3 / 30 |
| D = Rfh / H(H - h) | Card: 4 / 30 |
| True or False: The average scale of a line joining two points A and B with elevations ha and hb is calculated using the formula S = f / H. | Card: 5 / 30 |
| False. The average scale is calculated differently considering the elevations. | Card: 6 / 30 |
| If the flying height is 3000 m and the average terrain elevation is 1050 m, what would be the focal length for a scale of 1:13000? | Card: 7 / 30 |
| 150 mm | Card: 8 / 30 |
| Riddle: I change with elevation and vary from point to point, but I help you navigate the ground. What am I? | Card: 9 / 30 |
| Scale of a photograph | Card: 10 / 30 |
| How much longitudinal overlap is typically required in photogrammetry? | Card: 11 / 30 |
| 55 to 65% | Card: 12 / 30 |
| Fill in the blank: In terrestrial photogrammetry, photographs are taken from a ______ position on or near the ground. | Card: 13 / 30 |
| Fixed | Card: 14 / 30 |
| Which part of the camera is defined as the line passing through the center of the lens perpendicular to the picture plane? | Card: 15 / 30 |
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| Camera Axis | Card: 16 / 30 |
| True or False: The principal point is where the perpendicular from the front nodal point strikes the photograph. | Card: 17 / 30 |
| True | Card: 18 / 30 |
| What is the focal length if the average elevation of terrain is 1200 m and the scale of the photograph is 1:8000? | Card: 19 / 30 |
| 20 cm | Card: 20 / 30 |
| Which type of photograph does not show the horizon when the camera axis is tilted? | Card: 21 / 30 |
| Low Oblique photograph | Card: 22 / 30 |
| Fill in the blank: The altitude of the flight above mean sea level is determined using ______. | Card: 23 / 30 |
| H - h | Card: 24 / 30 |
| What is the relationship between relief displacement and the distance from the principal point? | Card: 25 / 30 |
| The relief displacement increases as the distance from the principal point increases. | Card: 26 / 30 |
| Riddle: I capture images from above, yet I need a perfect angle to show the ground below. What am I? | Card: 27 / 30 |
| Aerial photograph | Card: 28 / 30 |
| True or False: The number of photographs required to cover an area is calculated using the formula N = A / a. | Card: 29 / 30 |
| True | Card: 30 / 30 |
| Completed! Keep practicing to master all of them. |  Restart |
