a) Calculate the distance (in meters) travelled by the airplane during the exposure period. b) Calculate the average scale of a photography above terrain.

Q: An aircraft is flying at a ground speed of 200 km/h. The focal length of the camera is 200mm. The…

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Q: A pole cast a shadow 15 m long when the angle of elevation of the sun is 63°. If the pole leans 15°…

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Q: The vertical photograph was exposed with a 50 cm focal length camera at a flying height of 5,000…

A: Focal length f=50 cm = 0.50 m, Flying height H=5000 m, Photo scale S=1:2500, To Find- The elevation…

Q: Q-A vertical photograph of a flat area having an average elevation of 250m above mean sea level was…

A: Given data- Average elevation h=250 m, Focal length f=25 cm, Ab=300 m, ab=15 cm, r=10 cm, d=0.5 m,…

Q: Briefly define application of satellite image and ariel photo in water resources engineering

A: Remote sensing technique is used widely used to delineate the surface water bodies, estimate…

Q: What is the aeroplane flying height to obtain the average scale of the photograph equal to 1/7200?…

A: Given data: The average scale of the photograph, S = 1/7200 Ground surface elevations vary 160 m to…

Q: A section line AB appears to be 10.16 cm on a photograph for which the focal length is 16 cm. The…

A: Length of a line on a map = 2.54 cm Scale = 1/50000 Actual length on a ground = 50000 * 2.54 cm…

Q: If the distance from the instrument to the focus is 0.38m determine the horizontal distance between…

A: Given Data: Distance from the instrument to the focus ( focal length, f ) = 0.38m To find : The…

Q: A distance ab on a vertical photograph is 65.0 mm, and the corresponding ground distance AB is 1153…

A: Given data, Photo distance = 65 mm Ground distance = 1153 m Camera focal length = 153.19 mm Flying…

Q: The vertical photograph was exposed with a 60 cm focal length camera at a flying height of 3,000…

A: Given that :- focal length = f =60 cm flying height = H = 3000 m datum height = h = 200 m To…

Q: Q4/ Assume that a vertical photograph was taken at a flying height of 5000 m above sea level using a…

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Q: In supervised classification, we select training data to guide the software to: Select one: O a.…

A: Supervised Classification: In supervised classification the user or image analyst “supervises” the…

Q: s A and B located at the edge of a large basin that is 13,000 s setup at station A and has a height…

A: SO the height of treeHT=Height of instrument +CorrectionCorrection=combined correction of refraction…

Q: Size of photograph

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A photogrammetric survey uses photographs taken with specially designed cameras from where? O a.…

A: There are different type of surveying based of instrument, area to be considered etc.…

Q: When does the penetrometer classified as a static cone penetrometer?

A: Penetrometer is a device used to determine the penetration resistance and the engineering properties…

Q: A transit with stadia interval factor of 100.8 was set up at point C on the line between points A…

A: Given :- Stadia interval factor (K) = 100.8 set up at point C between A & B Distance from the…

Q: A vertical photograph of a flat area having an average elevation of 250m above mean sea level was…

A: Given data- Average elevation h=250 mfocal length f=25 cmAB=300 mab=15 cmd=0.5 mr=10 cmTo Find-The…

Q: For what purpose the photoionization detector is used?

A: - A Photoionization detector is a type of gas detector which measure volatile organic compounds and…

Q: A flagpole appears in two successive photographs taken at an altitude of 2,000 m above datum. The…

A: Given that :- Focal length of the camera = f = 120 mm length of the air base = B  = 200 m Parallax…

Q: 5) A person is looking to the horizon, sees a building of height 25 m. What is the least height of…

A: when the refraction is consideredthe height of the buildingC=25 mthereforedistance visible to…

Q: A vertical photograph is taken at an altitude of 1200 m above mean sea level' (ams.l.) of a terrain…

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Q: A vertical photograph is taken at an altitude of 1200 m above mean sea level of a terrain flying at…

A: Given data: Altitude, H = 1200 m Elevation, h = 80 m Focal length of camera, f = 15 cm = 0.15 m

Q: Determine the backsight or foresight distance for an instrument set up which will cause an error due…

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Q: Photogrammetry Question 3: A tower appears in two successive photographs taken at an altitude of…

A: Given data- Altitude H=4000 m above the datum. Focal length of the camera f=160 mm, Parallax from…

Q: Which of these is NOT a required device/information for the horizontal angle measurement? a)…

A: This given question is from surveying Here we are asked to find instrument/ information required for…

Q: If a vertical aerial photograph', (20 cm x 20 cm) in size, on a R.F.1: 10,000 has 60% longitudinal…

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Q: Question 6 A road section of length 2km scale 16 cm on a vertical photograph. The focal length of…

A: Focal length of camera (f)=320mm =32cm Scale of photograph(S) = 16/200000 cm/cm

Q: Images a, b, and c of ground points A, B, and C appear on a vertical photograph taken from a flying…

A: It is required to find the ground length of sides AB, BC & AC. then area under triangle ABC…

Q: A flagpole appears in two successive photographs taken at an altitude of 2,000 m above datum. The…

A: Given that :- focal length of the camera = f = 120 mm parallax for the top of the pole = 52.52 mm…

Q: Describe the procedure for properly focusing an optical plummet.

A: A total station's optical plummet is utilised for precise centering over a station. For locating the…

Q: The vertical photograph was exposed with a 60 cm focal length camera at a flying height of 3,000…

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Q: The objective of Photogrammetry

A: Photogrammetry:-  Photogrametry is another type of survey wherein photograph are taken from air that…

Q: Q- A vertical photograph of a flat area having an average elevation of 250m above mean sea level was…

A: Given data- Average elevation h=250 m, focal length f=25 cm, AB=300 m, ab=15 cm, d=0.5 cm, r=10 cm,…

Q: A tower appears in two successive photo-graphs taken at an altitude of 4000 m above datum. The focal…

A: Given Data :  Length of air base (B) : 300m Focal length of camera (f) : 160 mm Parallax top (P1)…

Q: 1. Compare and contrast: a Active vs. Passive Remote Sensing 569-8 b. Linear swath vs. Optical…

A: a) Active vs. Passive Remote SensingActive remote sensing involves the employment of a device that…