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The second principle of surveying states that the position of a point is determined by measuring angles and distances from known points. Plane surveying deals with flat surfaces, while geodetic surveying accounts for the…
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Discuss the different sources of errors in surveying with examples.
Errors can arise from instrument calibration, environmental conditions, and human factors.
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Discuss the different methods for calculating area.
Methods include triangulation, trapezoidal rule, and Simpson's rule.
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What is contour, write down the characteristics and use of contour line?
Contours represent equal elevation points on a map, used for understanding terrain.
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Discuss the causes of curvature and refraction in leveling and state their combined correction.
Curvature accounts for the Earth's shape, while refraction corrects for atmospheric bending.
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Explain different types of leveling.
Different types include differential, spirit, and barometric leveling.
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What do mean by triangulation. Write down its objectives and also discuss the types of triangulation?
Triangulation determines point locations using triangles, classified into primary, secondary, and tertiary.
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Describe the temporary adjustments of a theodolite in sequence.
Adjustments include leveling the instrument, centering over the point, and aligning the telescope.
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State Simpson's Rule for area calculation and its main condition.
Simpson's Rule approximates the integral of a function and requires the function to be continuous.
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Write down the objectives of levelling.
Objectives include determining height differences, establishing a horizontal line, and creating a reference plane.
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Write down the different purpose for which the theodolite can be used.
Theodolites are used for measuring angles, aligning structures, and surveying land.
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What is the second principle of surveying?
The position of a point is determined by measuring angles and distances from known points.
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What is a difference between plane surveying and geodetic surveying?
Plane surveying deals with flat surfaces, while geodetic surveying accounts for the Earth's curvature.
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What is the difference between a plan and a map?
A plan is a detailed drawing of a small area, whereas a map represents a larger area with less detail.
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What is magnetic declination?
Magnetic declination is the angle between magnetic north and true north.
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