Compute the refraction error for a distance .1718.1 m
Q: How much refraction correction (in m) required for a distance of 500 m?
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Q: The ratio of curvature effect to that of refraction is (a) 3 (c) 19 (b) 12 (d) 7
A: Curvature and refraction correction are applied to get the corrected staff reading . Curvature error…
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A: Given data- The given condition in the question is shown below in the diagram-
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Q: Compute the error of curvature and refraction of a distance 1459.92 m
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Q: The combined effect of the earth's curvature and refraction on a level sight of 1200m is
A: Calculate the combined effect of earth's curvature and refraction on a level sight of 1200m by using…
Q: The correction for refraction as applied to staff reading is 1 d? (a) + 1 d (b) 7 2R 2R (c) + R (d)…
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Q: A transit is set up at point B which is between A and C. The vertical angle observed towards A is…
A: Given : Height of instrument at B H.IB = 1.5m Elevation of A ha=146.32m
Q: Readings on a line of differential levels are taken to the nearest 2 mm. For what maximum distance…
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Q: What will be the level difference between the points A and B if curvature and refraction effects are…
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Q: TRIGONOMETRIC LEVELING. A vertical angle of -12°25’ is measured to the top of a water tank from an…
A: determine the elevation of the base of the water tank
Q: A transit is set up at point B which is between A and B. The vertical angle observed towards A is…
A: Measurement or measurement is a branch of testing, the object of which is to establish or verify or…
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A: Given that, Distance d = 1226.3 m d= 1.2263 Km To calculate refraction error (Cr)…
Q: Date Monitored: April 24, 2021 Total Station. Vertical Angle Reflector HI=1.375/ Slope Distance…
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Q: A transit is set up at a point B which is between A and C. The vertical angle observed towards A is…
A: Given That AB = 642.80m, θBA=-20° BC = 1032.40m, θBC=12° Elevation at point A = 146m Difference…
Q: The top of a tower signal at B, 2,000 m from A away was sighted through a transit with recorded…
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Q: Find the deflection angle from the following observation AB=N42°20' E BC=N 30°00'E * O 12° 20'L 12°…
A: Given Data: Bearing of Line AB N 42o20'E Bearing of Line BC N 30o00'E
Q: Three hills A, B and C are at elevation 135m, 146m, and 154m respectively above sea level. Distance…
A: The given data is: Elevation of hill A (hA) = 135 m Elevation of hill B (hB) = 146 m Elevation of…
Q: In trignometric leveling, correction for curvature and refraction is negligible if O the slope…
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Q: 9. In order to find the difference in elevation between two points P and Q, a level was set upon the…
A: Given data in question Line PQ Distances Rod readings To find out Corrected elevation difference…
Q: The top of a tower signal at B, 2,000 m from A away was sighted through a transit with recorded…
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Q: The top of a tower signal at B 2000 m from A away was sighted through a transit with recorded…
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Q: Draw a free body diagram :Topic Trigonometric leveling A transit is set up at point B which is…
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Q: Point A is between points B and C. The distances of B and C from point A are 1000 m and 2000 m,…
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Q: 22. Find combined correction for curvature and refraction for 3400 m?
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Q: From an instrument set up at point A, the angle of elevation of point B is +16°77' while point C is…
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Q: TRIGONOMETRIC LEVELING. A vertical angle of -12°25' is measured to the top of a water tank from an…
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Q: Two hills 90 km. apart has elevations of 60 m and 200 for hills A and B respectively. What would be…
A: Given: The distance between two hills A and B is 90 km. The elevation at hill A is 60 m. The…
Q: Situation A transit is set up at point B which is between A nd C. The vertical angle observed…
A: We are authorized to answer one question at a time since you have not mentioned which question you…
Q: Problem 2. A transit is set up at point B which is between A and B. The vertical angle observed…
A: Calculate the vertical difference in elevation between the line of sight (LOS) and A, tan α =…
Q: A transit is set up at point B which is between A and C. The vertical angle observed towards A is…
A: Transit theodolite: The theodolite is known as the transit theodolite when its telescope is…
Q: A vertical angle of -14°30' is read to a target 1.75 m. above point M. The measured inclined…
A: Horizontal distance:D=Sdcos∅D=644.15cos14°30'D=623.63mD=0.62363kmCorrection…
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Q: Find out the deflection angles from the following observations Lines AB BC Bearing N 42° 20' E N 30°…
A: Deflection angle=42°20'-30°00' =12°20' L
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A: In order to know the thickness of a layer, we have to know the transit time for a sound wave passing…
Q: 1. Two points A and B are 1530 m apart across a wide river. The following reciprocal levels are…
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Q: Point 1 having an elevation of 120 m above datum, and 2 is point of unknown elevation. By means of…
A: the question solve by the trigonometric leveling . RL of point 1 is less than point 2 then point 1…
Q: A vertical angle of +12:52'25" is measured to a station at the top of a hill from an instrument…
A: Distance between two stations, d = 2250 m Elevation of lower station = 98.366 m Height of Instrument…
Q: What will be the level difference between points A and Bif curvature and refraction effects are also…
A: Given data,
Q: The correction for curvature and refraction is applied when the points are having small distance…
A: Curvature and refraction correction are applied in the distance measurement to remove the error due…
Q: man standing on the ground can see just the tip of a tower 25km away. If the eye of the man is 1.8m…
A: Since the given question is multiple type therefore as per the guidelines only one question will be…
Q: 3. In the figure below, a vertical angle of -14°30' is read to a target 1.75 m above point M. The…
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Q: Determine the correction for curvature and refraction for distances of 1:6200 ft 2.7000 ft
A: Correction for curvature is used because of curvature the points appear lower than they actually…
Q: Two hills A and B, 90 km apart, has elevations of 60m and 200m respectively. What would be the…
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Q: Two hills 90km apart has elevation of 60m and 200m. What would be the minimum height of the tower…
A: DIstance between two hills = 90km Height of two hills = 60m and 200m It has been asked in the…
Q: Problem 2. A transit is set up at point B which is between A and B. The vertical angle observed…
A: Given data Angles Distances R.L. Height of instrument
Q: TRIGONOMETRIC LEVELING. A vertical angle of -12°25' is measured to t top of a water tank from an…
A: Given:- vertical angle=-12 degree 25 minutes ht of telescope instrument=11.45m above ground…
Q: The combined correction due to curvature and refraction (in m) for distance of 2.5 km on the surface…
A: Given:- Distance, d = 2.5 km To find:- combined correction due to curvature and refraction
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- Determine the combined effect of curvature and refraction on level sights of 30, 50, 100, 250, 300, 500, 1000, and 2000 m.Compute the combined effects of curvature and refraction on level sights of 20, 200, 400, 800, and 1600 ft.TRIGONOMETRIC LEVELING. A vertical angle of -12°25’ is measured to the top of a water tank from an instrument set up on a hill 585.00 meters away from it. The telescope of the instrument is 1.45 m above the ground whose elevation is 462.73 m. Making due allowance for the earth’s curvature and atmospheric refraction, determine the elevation of the base of the water tank is the tank is 32.0 m high. with complete solution adn figure of the said problem
- Readings on a line of differential levels are taken to the nearest 2 mm. For what maximum distance can the Earth’s curvature and refraction be neglected?Readings on a line of differential levels are taken to the nearest 0.2 mm. For whatmaximum distance can the Earth's curvature and refraction be neglected?Please just give answer quick: Calculate the equivalent correction for curvature and refraction if the distance is of 1 km on the curved surface.
- Two hills 100 km apart has elevations of 80 m and 230 m respectively. What would be the minimum height of tower that could be constructed at B so that it would be visible from A considering the effect of curvature and refraction correction.A transit is set up at point B which is between A and C. The vertical angle observed towards A is known to be -20° and that of C is +12°. The horizontal distance between A and B is 642.80 m and that of B and C is 1032.40 m. The height of instrument is 1.5 m above B with A having an elevation of 146.32 m. Considering the effect of curvature and refraction correction. Compute the difference in elevation between A and B (in meters). (answer in 3 decimal places) Compute the difference in elevation between A and C (in meters). (answer in 3 decimal places) Compute the elevation of B (in meters)Draw a free body diagram :Topic Trigonometric leveling A transit is set up at point B which is between A and B. The vertical angle observed towards A is known to be -20° and that of C is +12°. The horizontal distance between A and B is 642.80 m and that of B and C is 1032.40 m. The height of instrument is 1.5 m above B with A having an elevation of 146.32 m. Considering the effect of curvature and refraction correction. a) Compute the difference in elevation between A and B. b) Compute the difference in elevation between A and C. c) Compute the elevation of B.
- Find the farthest distance that a man aboard the ship (whose eye level is 5m above water line) can go so that a light house 32m high will still be visible (at least the top of it is visible)? Consider the error of curvature and refraction.Two hills 90km apart has elevation of 60m and 200m. What would be the minimum height of the tower that could be constructed in any of the hills so that it would be inter-visible from each other considering the effect of curvature and refraction?ANSWER KEY: h= 23.7918mA man standing on a beach can see the top of a lighthouse 25 km away. If the eye of the man is 1.5 m above sea level, then determine the height of the lighthouse above sea level considering earth’s curvature and refraction correction.